Page 1 User manual Air circuit breaker up to 1600 A RESET AUTO MANUAL Ø5.8 In 1 6 0...
Page 2: Table Of Contents
Contents Page 01 About this manual Safety instructions Using this manual 02 Sentinel electronic trip unit Description Display LI trip unit LSI trip unit LSIG trip unit 03 The types of protection device List of protection devices Long time delay protection Short time delay protection Instantaneous protection Ground fault protection...
Page 3 Page Extracting the withdrawable circuit breaker Inserting the withdrawable circuit breaker 10 Commissioning the circuit breaker 11 Alarm management 11.1 Overload pre-alarm 11.2 Overload alarm 11.3 Trip alarm 11.4 System alarm 12 Closing the circuit breaker after a trip operation 13 Maintenance indicator 14 Replacing the backup battery 15 Changing the rated current value In of the trip unit...
Page 4: About This Manual
About this manual 1.1 Safety instructions Warnings and instructions This documentation contains safety advice which must be respected for your own safety and to prevent property damage. Safety advice relating to your own safety is identified by a safety warning symbol in the documentation.
Page 5: Using This Manual
Appropriate use of Hager products Hager products are designed to be used only for the applications described in the catalogues and on the technical documentation relating to them. If products and components from other manufacturers are used, they must be recommended or approved by Hager.
Page 6: Sentinel Electronic Trip Unit
6LE007897A You can download these publications and other technical information from our website: www. hager.fr Contact Address Hager Electro SAS 132 Boulevard d’Europe 67215 Obernai France Phone + 33 (0)3 88 49 50 50 Website www.hager.fr 6LE007331A...
Page 7: Description
Sentinel electronic trip unit 2.1 Description hw+ Air Circuit Breakers are equipped with a Sentinel electronic trip unit on the front to protect against overloads and short circuits. It has a display and adjustment dials enabling the user to configure the protection settings and monitor its normal operation.
Page 8 In these cases, you are advised to connect an external battery to this USB-C port or an external 24 V DC power supply (Hager HTG911H) to the TU 24 V +/- terminals of the terminal block in order to view the settings through the display.
Page 9 Sentinel electronic trip unit 2.2 Display Description of the display Sentinel electronic trip units are equipped with a display which makes it possible to adjust settings, visualise the instantaneous load current and see the tripping causes of hw+ circuit breaker along with other alarm indications. Overload indicator: displayed as soon as the current exceeds 105% of Ir.
Page 10: Display
Sentinel electronic trip unit 2.2 Display In standby, the ReadyToProtect indicator flashes, indicating normal operation of the hw+ circuit breaker. A short press of the button displays a 1 screen showing the highest current of the 3 phases flowing through the circuit breaker. Current flowing through the circuit breaker in % of Ir.
Page 11: Li Trip Unit
Sentinel electronic trip unit 2.3 LI trip unit The Sentinel electronic trip unit is available in 3 versions: LI, LSI and LSIG LI Sentinel trip unit hw+ circuit breakers fitted with LI trip units are for use in electrical distribution applications. They are used for the protection of conductors and also if the fault current is limited due to the impedance of the conductor lengths.
Page 12: Lsi Trip Unit
Sentinel electronic trip unit 2.4 LSI trip unit LSI Sentinel trip unit hw+ circuit breakers fitted with LSI trip units are intended for use in electrical distribution applications. They are used for the protection of conductors and loads in cases in which a wide range of protection settings is required.
Page 13: Lsig Trip Unit
Sentinel electronic trip unit 2.5 LSIG trip unit LSIG Sentinel trip unit hw+ circuit breakers fitted with LSIG trip units are for use in electrical distribution applications. They are used for the protection of conductors and loads in cases in which protection against ground faults is required within the framework of a TN-S neutral system.
Page 14: The Types Of Protection Device
The types of protection device 3.1 List of protection devices The Sentinel electronic trip unit protects against overcurrent and ground faults for all types of electrical distribution in accordance with the requirements of standards IEC 60947-1 and 60947-2. List of protection devices - Long Time Delay protection - L: Overload protection - Short Time Delay protection - S: Protection against low current short circuits - Instantaneous protection - I: Protection against high current short circuits...
Page 15: Long Time Delay Protection
The types of protection device 3.2 Long Time Delay protection Long time delay protection is designed to protect against current overloads in electrical power distribution applications. Long time delay protection has an inverse time protection function including a thermal imaging function.
Page 16 The types of protection device 3.2 Long Time Delay protection tr adjustment range (s) 10.0 15.0 20.0 25.0 The trigger time tolerance for long time delay protection is -(20%; - 20 ms) to 0% + 30 ms. Example: For tr = 5 s and I = 6 x Ir, the trip time for long time delay protection will be between 3.98 s and 5.03 s.
Page 17: Short Time Delay Protection
The types of protection device 3.3 Short Time Delay protection Short time delay protection is designed to protect against short circuits. Short time delay protection curve t (s) l²t I (A) Short time delay protection Short time delay parameters Isd (x Ir) Short Time Delay protection threshold tsd (s) Short Time Delay...
Page 18 The types of protection device 3.3 Short Time Delay protection An inverse time function I²t = K can be activated or deactivated when adjusting the short time delay. This I²t function makes it possible to improve selectivity with downstream devices. It is activated from the Isd pick-up and functions up to 10xIr.
Page 19: Instantaneous Protection
The types of protection device 3.4 Instantaneous protection Instantaneous protection is designed to protect against high short circuit currents. This protection is time-independent. Instantaneous protection curve t (s) I (A) Instantaneous protection Instantaneous protection parameters Ii (x In) Instantaneous protection threshold Adjusting the Ii pick-up setting The Ii pick-up is adjusted using the li adjustment dial.
Page 20: Ground Fault Protection
The types of protection device 3.5 Ground fault protection Ground fault protection provides protection against high-intensity phase-to-earth fault currents present in installations with a TN-S earthing system. It is based on the sum of the phases and the neutral current. The time delay is adjustable. Ground fault protection curve t (s) l²tg...
Page 21: Neutral Protection
The types of protection device 3.6 Neutral protection Neutral protection is available as standard on 4P circuit breakers and as an option with the addition of the accessory ENCT external neutral current sensor on 3P versions. It is particularly useful when the cross section of the N conductor is adapted in relation to the phase conductors.
Page 22: Zone Selective Interlocking Function (Zsi)
The types of protection device 3.7 Zone Selective Interlocking function (ZSI) The Zone Selective Interlocking function is designed to reduce electrodynamic stress in the electrical power distribution system (conductors and busbars) when time selectivity is activated. It applies to the upstream section of the electrical power distribution system and requires the upstream and downstream circuit breakers to be connected by a cable.
Page 23 Adjusting the ZSI protection setting To take into account zone selectivity, the ZSI protection must be activated on the hw+ circuit breakers using the Hager Power Setup commissioning and test software. ZSI protection settings Short time delay protection ZSI...
Page 24 The types of protection device 3.7 Zone Selective Interlocking function (ZSI) Withdrawable hw+ circuit breaker RESET AUTO MANUAL In 1 6 0 Fixed hw+ circuit breaker RESET AUTO MANUAL In 1 6 0 6LE007331A...
Page 25: Protection Settings
Protection settings 4.1 Principle Follow the procedure below to adjust the protection devices. Action Illustration First, ensure that the circuit breaker is not energised and displays the following information: If this is not the case, open the circuit breaker by pressing the push button Open the transparent cover protecting access to...
Page 26 Protection settings 4.1 Principle Action Illustration When the circuit breaker is installed, the trip unit backup battery must be connected. To do so, insert a flat screwdriver into the slot. Then, open the hatch and confirm that the battery is connected.
Page 27 Adjust as required using the encoding dials. If you wish to view the settings on the display, an external Hager HTG911H 24 V DC power supply must be connected to the TU 24 V +/- terminals of the input and output...
Page 28 Protection settings 4.1 Principle Action Illustration Now, with each movement of the encoder dial, the corresponding setting..is visible on the display. Parameter adjusted Parameter unit: - in amps (A) for currents, - in seconds (S) for time delays. Parameter value 6LE007331A...
Page 29 Protection settings 4.1 Principle Action Illustration If no action is performed for 30 seconds, the display returns to its standby screen. Once all the settings have been adjusted, disconnect the external battery. Close the USB-C port cover. Close the transparent window.
Page 30 Protection settings 4.1 Principle Action Illustration Apply a seal to the window if necessary. 6LE007331A...
Page 31 Protection settings 4.1 Principle Using a computer equipped with the Hager Power Setup commissioning software, it is possible to achieve protection settings according to the values recorded in the hagercad project. The computer must be connected to the USB-C port of the electronic trip unit.
Page 32: Long Time Delay (Ltd) Protection Setting
This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 33 This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 34: Short Time Delay (Std) Protection Setting
This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 35 This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 36: Instantaneous (Inst) Protection Setting
This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 37: Ground Fault (Gf) Protection Setting
This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 38 This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 39: Neutral (N) Protection Setting
Protection settings 4.6 Neutral (N) protection setting In our example, the circuit breaker rating is 1600 A. Example of neutral protection N = 50% x Ir = 50% x 736 = 368 A Action Illustration Open the backup battery housing hatch (see Chapter 4.1 Principle).
Page 40 This example is given for information only to show the behaviour of the display and protection curve. The trip unit must be adjusted according to the results of the network study and calculation. Hager cannot be held responsible for the incorrect adjustment of an electronic trip unit in its installation. 6LE007331A...
Page 41: Reviewing The Settings
Protection settings 4.7 Reviewing the settings To review the settings adjusted: Action Illustration Briefly press button. The standby screen switches to the 1 screen displaying the maximum current flowing through the circuit breaker and the phase in question. At this level, each brief press on the button See the order of the screens on the next page.
Page 42 Protection settings 4.7 Reviewing the settings Maximum current flowing through the circuit breaker and the Protection pick-up Long Time phase in question Long Time Delay Delay → → ↗ ↘ Neutral protection Short Time Delay threshold protection pick-up ↑ ↓ Ground Fault Short Time time delay...
Page 43 Protection settings 4.7 Reviewing the settings Action Illustration In the bottom part of the screen, a series of boxes to aid navigation displays the number of screens available and the position of the screen in the order they are displayed in. Navigation aid Trip unit Number of screens...
Page 44: Circuit Breaker Operation
Circuit breaker operation 5.1 Description The hw+ circuit breaker has the following elements on the front: Spring charging handle Closing push button Spring status indicator Contact opening and closing indicator RESET AUTO Opening push button MANUAL RESET button In 1 6 0 Status indicators The combination of the two indicators shows the status of the hw+ circuit breaker.
Page 45 Circuit breaker operation 5.1 Description The RESET button The RESET button is used to reset the circuit breaker after tripping (see “Closing the circuit breaker after a trip operation”, page 94) It is either: - out, the circuit breaker has tripped, - in, the circuit breaker is closed.
Page 46 Circuit breaker operation 5.1 Description The spring The spring is used to close the circuit breaker. It must be first charged, for which there are two procedures: - Manual charging Charge the spring using the spring charging handle until the status of the indicator changes. - Automatic charging The spring is charged automatically after each time the circuit breaker closes if a charging motor is installed and powered.
Page 47: Circuit Breaker Closing
Circuit breaker operation 5.2 Circuit breaker closure DANGER Risk of electric shock, explosion or electric arc. Inspect the electrical installation and remove the cause of the tripping before closing the circuit breaker again. Never close a circuit breaker locally or remotely without first making sure that the installation complies with the safety standards.
Page 48 Circuit breaker operation 5.2 Circuit breaker closure Action Illustration Close the circuit breaker by pressing the closing push button The indicators change status. The standby screen lights up on the display and the ReadyToProtect indicator flashes, indicating that the trip unit is operational. ReadyToProtect indicator ATTENTION The circuit breaker must be energised and a current of at least 120 A must be available on...
Page 49: Circuit Breaker Opening
Circuit breaker operation 5.3 Circuit breaker opening To open an hw+ circuit breaker: Action Illustration The circuit breaker is in closed status with the spring discharged or charged. Open the circuit breaker by pressing the opening button push button The indicators update. 6LE007331A...
Page 50 Circuit breaker operation 5.3 Circuit breaker opening Action Illustration The display switches off. If an external Hager HTG911H 24 V DC Hager power supply is connected to the TU 24 V +/- terminals of the inputs and outputs, the ReadyToProtect indicator remains on.
Page 51: Locking The Opening And Closing Push Buttons
Circuit breaker operation 5.4 Locking the opening and closing push buttons The Push Button Cover PBC is a device preventing access to the opening and closing push buttons. It can also be used to hold the opening push button in pressed condition, thereby preventing any closing operation of the circuit breaker.
Page 52 Circuit breaker operation 5.4 Locking the opening and closing push buttons Action Illustration Opening push button in pressed condition. Access to the closing push button locked. Opening push button and closing push button locked. Lock it using one or more padlocks.
Page 53: Locking The Circuit Breaker In The Open Position Using Padlocks
Circuit breaker operation 5.5 Locking the circuit breaker in the open position using padlocks This locking device prevents the circuit breaker from closing by making the closing push button inactive Up to three Ø5–Ø8 mm padlocks can be installed. To activate or deactivate the locking device: Action Illustration Press the opening...
Page 54 Circuit breaker operation 5.5 Locking the circuit breaker in the open position using padlocks Action Illustration ... and close the padlock. Check that it is no longer possible to close the circuit breaker by pressing the closing push button To unlock the device, remove the padlock.
Page 55 Circuit breaker operation 5.5 Locking the circuit breaker in the open position using padlocks Action Illustration Check that it is now possible to close the circuit breaker by pressing the closing push button ATTENTION Refer to manual 6LE007488A to install this locking accessory. 6LE007331A...
Page 56: Locking The Circuit Breaker In Open Position Using Keylocks
Circuit breaker operation 5.6 Locking the circuit breaker in the open position using keylocks This locking device prevents the circuit breaker from closing by making the closing push button inactive Several types of locks can be installed. Ronis type lock Profalux type lock (not included) To activate or deactivate the locking device: Action...
Page 57 Circuit breaker operation 5.6 Locking the circuit breaker in the open position using keylocks Action Illustration Press the opening push button Hold the opening push button in pressed condition , and turn the key anti-clockwise to the vertical position. Remove the key. Then release the opening push button 6LE007331A...
Page 58 Circuit breaker operation 5.6 Locking the circuit breaker in the open position using keylocks Action Illustration (continued) It remains in pressed condition. Check that it is no longer possible to close the circuit breaker by pressing the closing push button To unlock the device, insert the key into the lock.
Page 59 Circuit breaker operation 5.6 Locking the circuit breaker in the open position using keylocks Action Illustration (continued) The push button returns to its initial position. Check that it is now possible to close the circuit breaker by pressing the closing push button ATTENTION The key cannot be removed in horizontal position.
Page 60: Locking The Circuit Breaker In The Chassis Using Padlocks
Circuit breaker operation 5.7 Locking the circuit breaker in the chassis using padlocks This locking device locks the circuit breaker in the chassis and prevents the racking handle from being inserted. Up to three Ø5–Ø8 mm padlocks can be installed. To activate or deactivate the locking device: Action Illustration...
Page 61 Circuit breaker operation 5.7 Locking the circuit breaker in the chassis using padlocks Action Illustration Position... then close the padlock. Check that it is not possible to insert the racking handle into the opening. 6LE007331A...
Page 62 Circuit breaker operation 5.7 Locking the circuit breaker in the chassis using padlocks Action Illustration To unlock the device, remove the padlock. The padlocking and position acknowledgement tab returns to its initial position. Check that it is now possible to insert the racking handle into the opening.
Page 63: Locking The Circuit Breaker In The Chassis Using Keylocks
Circuit breaker operation 5.8 Locking the circuit breaker in the chassis using keylocks This locking device locks the circuit breaker in the chassis and prevents the racking handle from being inserted. Several types of locks can be installed. Ronis type lock Profalux type lock (not included) Up to 2 locks can be installed in the housing.
Page 64 Circuit breaker operation 5.8 Locking the circuit breaker in the chassis using keylocks To activate or deactivate the locking device: Action Illustration Lock without key... or key in vertical position in the lock. Check that it is not possible to insert the racking handle into the opening.
Page 65 Circuit breaker operation 5.8 Locking the circuit breaker in the chassis using keylocks Action Illustration To unlock the device, insert the key into the lock. Turn the locking device key anti-clockwise. Check that it is now possible to insert the racking handle into the opening.
Page 66 Circuit breaker operation 5.8 Locking the circuit breaker in the chassis using keylocks Action Illustration The key cannot be removed in horizontal position. To remove it, turn until it is vertical. ATTENTION For the installation of this accessory, refer to the manual 6LE007677A. 6LE007331A...
Page 67: Racking Interlock Ri
Circuit breaker operation 5.9 Racking Interlock RI This device prevents the racking handle being inserted into the circuit breaker rack in/rack out mechanism when the door of the electrical cabinet is open. To test the locking device: Action Illustration Open the electrical cabinet door.
Page 68 Circuit breaker operation 5.9 RI open door racking lock Action Illustration Check that it is not possible to insert the handle into the opening. Close the electrical cabinet door. Check that it is now possible to insert the handle into the opening. ATTENTION Refer to manual 6LE007491A to install this locking accessory.
Page 69: Positions Of The Withdrawable Circuit Breaker In The Chassis C
Positions of the withdrawable circuit breaker in the chassis The position of the circuit breaker in the chassis is shown by the position indicator on the front. Changing from one position to another is achieved by inserting the racking handle into the rack in/rack out mechanism Inserting the racking handle can be protected by locking systems.
Page 70: Positions Of The Withdrawable Circuit Breaker In The Chassis
Positions of the withdrawable circuit breaker in the chassis 7.1 Changing from connected position to test position WARNING Risk of electric shock Danger to life, risk of injury due to electric shock, or risk of serious injury. Make sure that the device is only operated by qualified personnel according to the installation standards in force in the country To change from connected position to test position: Action...
Page 71 Positions of the withdrawable circuit breaker in the chassis 7.1 Changing from connected position to test position Action Illustration Insert the racking handle into the hole. Press the padlocking and position acknowledgement tab. 6LE007331A...
Page 72 Positions of the withdrawable circuit breaker in the chassis 7.1 Changing from connected position to test position Action Illustration Turn the racking handle anti-clockwise..until the status indicator is displayed: TEST and the padlocking and position acknowledgement tab comes out of its housing.
Page 73: Changing From Test Position To Disconnected Position
Positions of the withdrawable circuit breaker in the chassis 7.2 Changing from test position to disconnected position ATTENTION Risk of property damage Ensure that the chassis is correctly attached before changing position. To change from test position to disconnected position: Action Illustration The circuit breaker is in...
Page 74 Positions of the withdrawable circuit breaker in the chassis 7.2 Changing from test position to disconnected position Action Illustration ... until the status indicator is displayed: and the padlocking and position acknowledgement tab comes out of its housing. Clac ! Remove the racking handle.
Page 75: Changing From Disconnected Position To Test Position
Positions of the withdrawable circuit breaker in the chassis 7.3 Changing from disconnected position to test position WARNING Risk of electric shock Danger to life, risk of injury due to electric shock, or risk of serious injury. Make sure that the device is only operated by qualified personnel according to the installation standards in force in the country To change from disconnected position to test position: Action...
Page 76 Positions of the withdrawable circuit breaker in the chassis 7.3 Changing from disconnected position to test position Action Illustration Press the padlocking and position acknowledgement tab. Turn the racking handle clockwise..until the status indicator is displayed: TEST and the padlocking and position acknowledgement tab comes out of its housing.
Page 77: Changing From Test Position To Connected Position
Positions of the withdrawable circuit breaker in the chassis 7.4 Changing from test position to connected position To change from test position to connected position: Action Illustration The circuit breaker is in the test position and the status indicator displays: TEST Press the padlocking and position acknowledgement...
Page 78 Positions of the withdrawable circuit breaker in the chassis 7.4 Changing from test position to the connected position Action Illustration ... until the status indicator is displayed: and the padlocking and position acknowledgement tab comes out of its housing. Clac ! Remove the racking handle.
Page 79: Extracting The Withdrawable Circuit Breaker
Extracting the withdrawable circuit breaker CAUTION Risk of the circuit breaker falling Risk of injury by crushing. Ensure the device is only handled by qualified personnel equipped with lifting equipment and suitable safety equipment. ATTENTION Risk of property damage To avoid the product tipping, ensure that the chassis is correctly installed before starting to extract the circuit breaker.
Page 80 Extracting the withdrawable circuit breaker Action Illustration Slide the circuit breaker from its housing on its guide rails. The circuit breaker can be extracted from the chassis 6LE007331A...
Page 81: Inserting The Withdrawable Circuit Breaker
Inserting the withdrawable circuit breaker CAUTION Risk of the circuit breaker falling Risk of injury by crushing. Ensure the device is only handled by qualified personnel equipped with lifting equipment and suitable safety equipment. ATTENTION Risk of property damage To avoid the product tipping, ensure that the chassis is correctly attached before starting to insert the circuit breaker.
Page 82 Inserting the withdrawable circuit breaker Action Illustration Using suitable lifting equipment, position the circuit breaker on the guide rails. Remove the lifting equipment. Push the circuit breaker to the back of the chassis without pushing on the guide rails. 6LE007331A...
Page 83 Inserting the withdrawable circuit breaker Action Illustration Push the guide rails to the back of the chassis. 6LE007331A...
Page 84: Commissioning The Circuit Breaker
For commissioning, refer to the operations described in standard IEC 61439-1 and -2. ATTENTION For any further information about commissioning the service breaker, contact Hager Technical Support. ATTENTION The Hager Power Setup tool is recommended in order to carry out the protection settings when commissioning the electronic trip unit. 6LE007331A...
Page 85: Alarm Management
Alarm management 11.1 Overload pre-alarm PTA The Sentinel trip unit is used to manage 4 types of alarms: • Overload pre-alarm PTA • Overload alarm • Trip alarm • System alarm Sentinel electronic trip units are configured to signal an overload pre-alarm to warn that the load current is approaching a programmed trip threshold (90% of Ir).
Page 86 Alarm management 11.1 Overload pre-alarm PTA When the monitoring zone is entered and the PTA overload pre-alarm is active, this is displayed on a screen of this type: Percentage of the Ir current reached Value in amps of the current flowing through the circuit breaker on the most highly loaded phase Relevant phase Overload pre-alarm indicator: Normal load zone...
Page 87: Overload Alarm
Alarm management 11.2 Overload alarm The overload alarm is activated as soon as the current ≥ 105% of the Ir value. In the event of an overload alarm, a screen of this type is displayed with the indicator flashing and the indicator lit and steady.
Page 88: Trip Alarm
Alarm management 11.3 Trip alarm If the circuit breaker trips (overload, short circuit, ground fault), the circuit breaker opens, interrupting the flow of current. The trip unit display is powered by the auxiliary power supply or its backup battery and a screen of this type flashes quickly for a maximum of 6 hours or until the fault is acknowledged.
Page 89: System Alarm
Alarm management 11.4 System alarm Two types of system alarms may be indicated: • Operating system alarms indicate operating system anomalies that do not lead to tripping. They have a low, medium or high criticality level depending on the severity of the anomaly. - Low criticality level: anomaly with no impact on the protection functions and not requiring urgent corrective action.
Page 90 Alarm management 11.4 System alarm For the meanings of the different operating system alarms, refer to the table below: Error Criticality Meaning code level E019 High Level 1 internal error E020 Medium Faulty adjustment dial E021 Medium High electronic trip unit temperature error E022 Medium Faulty electronic trip unit OK button...
Page 91 Alarm management 11.4 System alarm • Hardware tripping system alarms with a High criticality level requiring immediate action. Anomalies causing this type of alarm may lead to the loss of the protection functions. Therefore, these alarms are equivalent to a trip alarm and cause the circuit breaker to open.
Page 92 Alarm management 11.4 System alarm It is also possible to personalise the reaction and signals of the circuit breaker so that the Hardware tripping system alarms either cause the circuit breaker to trip (see screen on previous page), or only an alarm with a flashing screen of this type: Error indicator Error code By default, all the Hardware tripping system alarms cause the circuit breaker to trip.
Page 93 Alarm management 11.4 System alarm Action Illustration From now on, each time button, the "ON" display switches to "OFF" and the reverse. "On" display: the Hardware tripping system alarms cause the circuit breaker to trip. "OFF" display: the Hardware tripping system alarms are only indicated by one alarm.
Page 94: Closing The Circuit Breaker After A Trip Operation
Closing the circuit breaker after a trip operation After tripping, the circuit breaker is open with the spring discharged. The electronic trip unit display flashes, indicating the cause of the tripping. To know the cause of the tripping, refer to Chapters 11.3 Trip alarms and 11.4 System alarms. DANGER Risk of electric shock, explosion or electric arc.
Page 95 Closing the circuit breaker after a trip operation Action Illustration If the circuit breaker reset is configured to MANUAL, move on to step 3. RESET AUTO MANUAL If the circuit breaker reset type is set to AUTO, go directly to step 5. RESET AUTO MANUAL...
Page 96 Closing the circuit breaker after a trip operation Action Illustration Press the circuit breaker RESET button. The spring is charged and now ready to close. Then reset the electronic trip unit display. Press the button briefly. 6LE007331A...
Page 97 Closing the circuit breaker after a trip operation Action Illustration The electronic trip unit display stops flashing: and becomes steady: Press the button for more than 3 s. The fault is acknowledged and the display switches off. 6LE007331A...
Page 98 120 A must be available on one phase or a minimum current of 80 A per phase or an external Hager HTG911H 24 V DC power supply to be connected to the TU 24 V +/- terminals of the input and output terminal block of the hw+ circuit breaker must be present.
Page 99: Maintenance Indicator
Maintenance indicator When the maintenance indicator is displayed, maintenance operations are required on the circuit breaker. Maintenance indicator ATTENTION If the maintenance indicator appears, contact the Hager Technical Support or refer to Maintenance manual 6LE007897A. 6LE007331A...
Page 100: Replacing The Backup Battery
If the backup battery is discharged, the electronic trip unit will be unable to display the cause of any tripping unless an external Hager HTG911H 24 V DC power supply is connected to the TU 24 V +/- terminal block of the inputs and outputs or if an external battery is connected the USB-C port of the electronic trip unit.
Page 101 Replacing the backup battery Action Illustration Insert a screwdriver into the slot. Then open the hatch. To safeguard the electronic trip unit’s internal data, remove the USB-C port cover. 6LE007331A...
Page 102 Replacing the backup battery Action Illustration Connect an external battery to the USB-C port. Remove the used battery. 6LE007331A...
Page 103 Replacing the backup battery Action Illustration Replace it with a new battery. ATTENTION • It is essential to replace the battery with the HWW463H reference available in the catalogue to guarantee the reliability and the safety of people and property. •...
Page 104 Replacing the backup battery Action Illustration Remove the external battery. Close the USB-C port cover. Close the hatch. 6LE007331A...
Page 105 Replacing the backup battery Action Illustration Close the transparent window. Apply a seal to the window if necessary. Briefly press button to acknowledge the low or missing battery indicator. 6LE007331A...
Page 106 Replacing the backup battery Action Illustration The standby screen lights up on the display. The low or missing battery indicator has disappeared and the ReadyToProtect indicator flashes, indicating that the electronic trip unit is operational. 6LE007331A...
Page 107: Changing The Rated Current Value In Of The Trip Unit
Changing the rated current value In of the trip unit The rated current value In can be modified by changing the calibrator located on the front of the trip unit. Reference Previous rated Possible new values New calibrator of circuit breaker current value reference HW1xx04...
Page 108 Changing the rated current value In of the trip unit Action Illustration Open the circuit breaker by pressing the opening push button The indicators update. The display switches off. Place the circuit breaker in the disconnected position (see chapters 7.1 and 7.2). 6LE007331A...
Page 109 Changing the rated current value In of the trip unit Action Illustration Pull the guide rails as far as possible while holding the upper part of the circuit breaker. The circuit breaker remains in the chassis in the disconnected position. Clac ! Clac ! Slide the circuit breaker...
Page 110 Changing the rated current value In of the trip unit Action Illustration If necessary, remove the seal from the transparent cover, which protects access to the trip unit, then unscrew the 4 screws. Lower the spring charging handle. Remove the cover in order to access the trip unit.
Page 111 Changing the rated current value In of the trip unit Action Illustration Insert a flat screwdriver into the tab then lever to unlock it. Remove the calibrator. 6LE007331A...
Page 112 Changing the rated current value In of the trip unit Action Illustration Position the lever of the new calibrator to the left. Clip the calibrator into its housing. Push the lever to the right to lock the calibrator. 6LE007331A...
Page 113 Changing the rated current value In of the trip unit Action Illustration Remove the USB-C port cover. Connect the external battery to the USB-C port. The trip unit screen lights up, indicating that the new rated current value has been correctly taken into account.
Page 114 Changing the rated current value In of the trip unit Action Illustration Remove the external battery. Close the USB-C port cover. Lower the spring charging handle. 6LE007331A...
Page 115 Changing the rated current value In of the trip unit Action Illustration Mount the cover. Fix the 4 screws. Ensure that the chassis is in the disconnected position. 6LE007331A...
Page 116 Changing the rated current value In of the trip unit Action Illustration Pull the guide rails as far as possible. Using suitable lifting equipment, position the circuit breaker on the guide rails. Remove the lifting equipment. 6LE007331A...
Page 117 Changing the rated current value In of the trip unit Action Illustration Push the circuit breaker to the back of the chassis without pushing on the guide rails. Push the guide rails to the back of the chassis. Place the circuit breaker into the disconnected position (see chapters 7.3 and 7.4).
Page 118 Changing the rated current value In of the trip unit Action Illustration If necessary, fix a seal on the transparent cover protecting access to the trip unit. WARNING Risk of unexpected operation. Before closing the transparent window, check the settings. Charge the spring using the handle until the following indicators...
Page 119 Changing the rated current value In of the trip unit Action Illustration The indicators change status. The standby screen lights up on the display and the ReadyToProtect indicator flashes, indicating that the trip unit is operational. ReadyToProtect indicator ATTENTION The circuit breaker must be on and a minimum current of 120 A must be available on one phase or a minimum current of 80 A per phase for the trip unit screen to light up and for it to be able to perform its protection functions.
Page 120 Hager Electro SAS 132 Boulevard d’Europe 67210 OBERNAI CEDEX hager.com 6LE007331A...

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