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Related Manuals for Bender MG-1.3
Summary of Contents for Bender MG-1.3
- Page 1 Manual MarinaGuard® MG-1 Ground Fault Monitoring Panel For Marina Shore Power...
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Page 2: Table Of Contents
Pre-Trip Alarm ................. 16 3.8.4 Time Delay ..................16 3.8.5 Digital Display ................16 3.8.6 RCM420 Interface Elements ............17 3.8.7 Using the Push Buttons .............. 18 3.8.8 Password Protection ..............18 MarinaGuard © 2023 Bender Inc. All Rights Reserved... - Page 3 5. Troubleshooting................25 General Troubleshooting............. 25 Fuse Replacement ................25 Error Codes ..................26 Technical Specifications .............. 26 6. Ordering Information ................. 27 MarinaGuard..................27 Current transformers ..............28 7. Certifications..................29 MarinaGuard © 2023 Bender Inc. All Rights Reserved...
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Page 4: Introduction
Shunt-trip circuit breakers are required to interrupt the faulted circuit in the event of a ground fault. MarinaGuard panels require a site-supplied 120-Vac control voltage. MarinaGuard features a lockable non-metallic type 4X enclosure suitable for outdoor use. -
Page 5: Safety Instructions
These instructions should not be viewed as sufficient for those who are not otherwise qualified to operate or service this equipment. No responsibility is assumed by BENDER for any consequences arising from use of this docu- ment. Turn OFF all sources of electric power before performing any inspections, tests, or service on this equipment. -
Page 6: Using This Manual
WARNING CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in injury or equipment damage. CAUTION NOTE: Provides additional information to clarify in- structions for a product or procedure. MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 7: Installation And Connection
Terminal blocks for external trip circuit and current transformer Fuse holder - contains fuse protecting RCM420 Strobe light - flashes when ground fault is detected and circuit has tripped, the fuse is open, or the RCM420 malfunctions MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 8: Dimensions
Front View with Strobe Side View 7.63" (194) 1.18” 12.68" (322) (30) 9.63" 14.03" 7.38” 7.87” (245) (356) (187.5) (199.9) 10.81" (275) Rear View Bottom View Weight Model 9.4 lb. (4.3 kg) MG-1.3 MarinaGuard MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 9: Mounting
Installation and Connection 3. 3 Mounting Mounting feet are included with MarinaGuard panels. Place the mounting brackets over the octagon bosses. Fasten them to the enclosure using the provided 1/4”-20 x 0.25” SS, countersunk Phillips drive screws (30 in-lb torque limit). -
Page 10: Wiring - General Instructions
Wire Strip Length Type Wire Strip Length All terminal blocks in MG-1 0.39” (10 mm) 3.5.3 Recommended Tightening Torque Type Tightening Torque All terminal blocks in MG-1 5.0 - 5.6 lb-in (0.6 N-m) MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 11: Wiring
The L1 terminal block contains an indicating light, illuminating when control voltage is applied to the panel, regardless of the state of the internal circuit breaker. 120 VAC 120 VAC, 60 Hz MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 12: Current Transformer Connection
(Page 7). Refer to the wiring diagram below. Make the connections to the bottom side of the terminal blocks. Refer to Section 3. 7 for instructions on routing system conductors through the current transformer. MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 13: External Trip Circuit Connection
CAUTION equipment damage. NOTE: Contact Bender if application requirements dif- fer from those above, or if a separately derived trip voltage is required. Locate the connections labeled as Number 5 in the diagram in Section 3.1 (Page 7). -
Page 14: Wiring Block Diagram Reference
Installation and Connection 3.6.4 Wiring Block Diagram Reference 120 VAC, 60 Hz Grounded Supply MarinaGuard MG-1.3 External shunt External current trip coil transformer MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 15: Current Transformer Installation
Refer to figures below. CAUTION: Do not route the ground conductor through the current transformer. CAUTION NOTE: Only specified Bender current transformers are compatible. Refer to Section 6. for a list of devices. Third party current transformers are not supported. MarinaGuard... -
Page 16: Field Adjustments - Mg1.2
3.8.1 RCM420 Ground-Fault Relay The MG-1.3 MarinaGuard incorporates a Bender RCM420 series ground-fault relay. Key settings affecting the performance of the MarinaGuard are listed below. For additional information on use, refer to the RCM420 user manual. 3.8.2 Main Alarm The RCM420 has an adjustable trip level range of 10 mA to 10 A (factory set- ting 30 mA). -
Page 17: Rcm420 Interface Elements
T / UP button: Scrolls up inside device main menu. R / DOWN button: Scrolls down inside device main menu. MENU / ENTER button: Activates main menu / confirms or cancels step inside main menu. MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 18: Using The Push Buttons
Press the MENU button. If the correct password was entered, the display will return to the previous 60. 0 > menu item and settings will be modifiable until Short press exiting the main menu. MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 19: Change Trip Level
Hold > 1.5 sec Hold the MENU button again for > 1.5 s. The device will exit the menu and return to the normal display. Hold > 1.5 sec MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 20: Change Trip Time Delay
Hold > 1.5 sec Hold the MENU button again for > 1.5 s. The device will exit the menu and return to the normal display. Hold > 1.5 sec MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 21: Change Password
Hold the MENU button for > 1.5 s. A flashing “SET” will appear on the screen. Hold the MENU button again for > 1.5 s. The device will exit the main menu. Hold > 1.5 sec MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 22: Factory Default Settings
HI I 1/2 overcurrent / under- Lo (undercurrent) / current / window In (window) Add transformer 1 - 100 (assuming ratio for cascaded 1 A secondary) current transformers (ex. 100 = 500:5) MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 23: Operation
Refer to Section 4.3 (Page 24) for what occurs during a self-test. When tripped, momentarily press the button to reset the MG-1 and return to the normal state. After the ground fault is eliminated, external trip devices can be reset. MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 24: Applying Power
Applying Power To apply power, close the circuit breaker or disconnect to the 120 VAC control power entering the panel. The MarinaGuard will immediately power on. The green READY light will illuminate. NOTE: During startup, the strobe may flash briefly. -
Page 25: Troubleshooting
5. 2 Fuse Replacement Each panel contains quantity one of the fuse listed below. Model Fuse MG-1.3 5 A / 250 V, type 3AG fast-acting fuse MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 26: Error Codes
Compatible current transformers CTAC series Compatible trip device shunt trip, 120 Vac Field connections Copper wire only, 22 to 14 AWG, 60/70 C CT-input and shunt-trip terminals, 5.0 to 5.6 lb-in (0.6 Nm) torque MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 27: Ordering Information
Ordering Information 6. Ordering Information 6. 1 MarinaGuard Part No. Channels Outputs Ordering No. B541300778 MG-1.3 MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 28: Current Transformers
Circular Solid 1.38” (35 mm) CTAC60 B 981 10017 Circular Solid 2.36” (60 mm) CTAC120 B 981 10019 Circular Solid 4.72” (120 mm) CTAC210 B 981 10020 Circular Solid 8.27” (210 mm) MarinaGuard © 2023 Bender Inc. All Rights Reserved... -
Page 29: Certifications
7. Certifications MarinaGuard® panels are UL Listed Ground-Fault Protection for Equipment (GFPE). GROUND FAULT SENSING AND RELAYING EQUIPMENT E478610 MarinaGuard © 2023 Bender Inc. All Rights Reserved... - Page 30 USA • Exton, PA Canada • Missisauga, ON +1 800.356.4266 +1 800.243.2438 info@benderinc.com� info@bender-ca.com www.benderinc.com 14.47i.REV.0 / 01.2023 / © Bender Inc. All Rights Reserved.
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