Eaton IZM63 Instruction Manual
  1. Manuals
  2. Brands
  3. Eaton Manuals
  4. Circuit breakers
  5. IZM63
  6. Instruction manual

Eaton IZM63 Instruction Manual

Low voltage
Hide thumbs Also See for IZM63:
Table of Contents

Advertisement

Quick Links

Download this manual
Instruction Manual MN013014EN
IZM63 / IN63 low voltage air circuit breaker
IZM63 / IN63

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the IZM63 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Eaton IZM63

Summary of Contents for Eaton IZM63

  • Page 1 Instruction Manual MN013014EN IZM63 / IN63 low voltage air circuit breaker IZM63 / IN63...
  • Page 2 This information is also available from the Eaton Web site at particular equipment, contact the local Eaton representative. www.eaton.com For application information, consult Eaton or see applica- ble Product Guides, Technical Documents, and Industry Standards. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 3: Table Of Contents

    3-5 Secondary contacts and connection diagrams ........22 IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 4 8-1 Introduction ..............55 IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 5: Section 1: Introduction

    The inside of the compartment can also be inspected with 1-1 General information the circuit breaker on its extension rails. The IZM63 / IN63 air circuit breaker is a fixed or drawout air circuit breaker design using an electronic tripping system. NOTICE It is designed and tested for use at nominal voltages of AC380/415V, 440V and 500/690V.

  • Page 6: Safety Features

    The individual should be able to de-energize, clear, and tag circuits in accordance with established safety practices. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 7: Section 2: Receiving, Handling, And Installation

    (Figure 2-1). Remove the lag screws and clamps. Save the screws and clamps for future shipment of the breaker. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 8: Lifting Circuit Breaker

    Check to make sure that this match exists. The sensor rating can be viewed through the viewing windows at the rear of the circuit breaker (Figure 2-2). IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 9: Adapting Cassette

    Do not disable rejection interlocks. Doing so and using a lower capacity circuit breaker in an incompatible cassette could result in an electrical fault that could result in death, bodily injury, and/or equipment damage. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 10: Installing Drawout Circuit Breaker

    Not Made Circuit Breaker Out of Compartment On Extension Rails • No Electrical Connections Made • Breaker On Extension Rails • Remove or Inspection Position Figure 2-4 REMOVE position IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 11 Primary Breaker Connections Side View Not Made • Breaker and Trip Unit Testing • Primary Connection Not Made • Secondary and Ground Connections Made Figure 2-6 TEST position IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 12: Levering Circuit Breaker

    Discharge Figure 2-8 Cassette label showing disconnected, test, takes place between the DISCONNECT and the TEST and connected position of recessed cover position. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 13 Mounting locations for cell (TOC) switches, safety shutters, mechanical interlocks, and key interlocks are provided on the cassette. Figure 2-9 Drawout circuit breaker in cassette Figure 2-10 Drawout circuit breaker with automatic pri- mary disconnects IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 14 Secondary Terminal Blocks Arc Hood Optional Cell (TOC) Switch Optional Key Interlock Earthing Bar Open Safety Shutters Primary Terminals (Rear View) Figure 2-11 Drawout cassette features (front and rear views) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 15: Fixed Circuit Breaker

    Optional vertical primary adapters are available for different trically before they are put into service. This can be done bus configurations. during the installation process or some later date prior to IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 16: Technical Data

    Bus bar dimensions The bus bar sizes are shown in the table below. This table uses data specified by IEC 60947-1 or obtained by Eaton in their circuit breaker testing. They are 3-meter-long bus bars with the faces vertical and painted flat black. For other bus bar config- urations, larger bus bar sizes may be required or the breaker may have to be de-rated.
  • Page 17 Derating factors IZM63 / IN63 circuit breakers can be applied at their full voltage and current ratings up to a maximum attitude of 2000 meters above sea level. When installed at higher attitudes, the ratings are subject to correction factors. Rated short-circuit current is not affected as long as the voltage is rated in accordance with the table below.
  • Page 18 Recommended enclosure/ventilation opening dimen- sions Width of cassette + 75 mm Width 550 mm Height 450 mm (front control panel bay) Depth 320 cm² (4000-6300A) Ventilation holes Rear or lower vent IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 19: Section 3: Circuit Breaker Description And Operation

    Ba ed arc chute cover Secondary disconnects (contacts) Faceplate (front cover) Drawout rail supports Integral lifting handle Figure 3-1 Typical double-wide drawout circuit breaker features (front and rear views) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 20 Ba ed arc chute cover Secondary disconnect Faceplate (front cover) Integral lifting handle Fixed horizontal primary terminal Figure 3-2 Typical fixed circuit breaker features (front and rear views) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 21 Faceplate (front cover) Integral lifting handle Fixed vertical primary terminals (with optional vertical adapter) Figure 3-3 Typical double-wide standard frame fixed circuit breaker features (front and rear views) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 22 Manual ON button (push) Trip unit cover. Plastic cover is provided which allows the settings to be viewed but not changed. Figure 3-4 Typical double-wide drawout circuit breaker front cover IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 23: Basic Circuit Breaker Assembly

    Electric charging motor Manual charge handle Operations counter (optional) Padlockable levering device access door Breaker position indicator Figure 3-6 Electrically operated drawout circuit breaker with front cover removed IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 24: 3-3.1 Manual Operation

    Figure 3-7 Electrical motor operator to charge closing Figure 3-8 Charging motor can be installed in the field spring (installed) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 25: Electronic Tripping System

    USB port on the trip unit. Please contact your Eaton sales representative for details on proper re-programming of the trip unit. Figure 3-9 Installed PXR trip unit IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 26: 3-4.5 Trip Actuator

    50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 Figure 3-10 Secondary connector top view IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 27 (AMP) to facilitate the removal of secondary wiring from a plug-in connector, or contact Eaton for assistance (Figure 3-12). The connector halves must be separated to use this tool. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 28: Section 4: Dimensional Drawings

    Section 4: Dimensional drawings IZM63 / IN63 fixed type dimensions and horizontal board dimensions (3P, 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 29 Section 4: Dimensional drawings IZM63 / IN63 fixed type dimensions and horizontal board dimensions (4P, 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 30 Section 4: Dimensional drawings IZM63 / IN63 fixed type panel cutout and external vertical board dimensions (3P and 4P , 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 31 Section 4: Dimensional drawings IZM63 / IN63 Withdrawable Type Dimensions (3P and 4P , 5000~6300A) Notes: de Drawer switch position f Recommended minimum mounting space IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 32 Section 4: Dimensional drawings IZM63 / IN63 withdrawable type panel cutout dimensions (3P and 4P, 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 33 Section 4: Dimensional drawings IZM63 / IN63 withdrawable type cassette dimensions and mounting dimensions (3P, 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 34 Section 4: Dimensional drawings IZM63 / IN63 withdrawable type cassette dimensions and mounting dimensions (4P, 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 35 Section 4: Dimensional drawings IZM63 / IN63 withdrawable type cassette horizontal board wiring dimensions (3P - 5000~6300A) IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 36: Section 5: Protective Characteristic Curves

    6. This curve is for 50Hz, 60Hz applications. 7. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current...
  • Page 37 7. Curves applies from -20°C to +70°C ambient. Temperatures above +85°C will cause over temperature trip. 8. This curve is for 50Hz, 60Hz applications. 9. These curves are comprehensive for series IZM63 circuit breakers including all frame sizes, ratings, and constructions. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 38 7. This curve is for 50Hz, 60Hz applications. 8. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current.
  • Page 39 Instantaneous Asymmetrical Peak Current (kA) Notes: 1. Fixed High Instantaneous Trip function is provided in the circuit breaker for Series IZM63 / IN63 set to pickup at 90kA. Instantaneous peak current level. The tolerance is 100% ±10% as the pickup points.
  • Page 40 7. This curve is for 50Hz, 60Hz applications. 8. These curves are comprehensive for series IZM63 / IN63 breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current.
  • Page 41 8. This curve is for 50Hz ,60Hz applications. 9. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current.
  • Page 42 8. These curves are comprehensive for series IZM97/99 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 43 9. This curve is for 50Hz, 60Hz applications. 10. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current.
  • Page 44 7. Curves applies from -20°C to +70°C ambient. Temperatures above +85°C will cause over temperature trip. 8. This curve is for 50Hz, 60Hz applications. 9. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 45 8. This curve is for 50Hz, 60Hz applications. 9. These curves are comprehensive for series IZM63 / IN63 circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for trip unit, the breaker opening and the interruption of the current.

  • Page 46: Section 6: Wiring Diagrams

    On a 4P circuit breaker, the neutral current sensor has the same style and wiring method as the phase sensor, located within the circuit breaker frame, no need to connect the secondary terminals 11N1, 12N2 IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 47 C22-L-R-230. For 24 Vdc application, use C22-L- R-24. Remove the white (22 mm [0.89 in.]) diameter pilot light) Light Diffuser from the assembly to give better indication of voltage present. Activate the push-button to trip the circuit breaker. See Eaton for other voltages.
  • Page 48 Section 6: Wiring diagrams Under voltage release Monitored Voltage ① IZM series circuit breaker Notes: 1. Treated as the positive voltage for DC ratings. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 49 3. For the PXR20/25, the Alarm 3 is for Trip N.O. contact. Contact rating 1 A @ 120 Vac, 1 A @ 24 Vdc, and 0.5 A @ 230 Vac. 4. If the control voltage is +24 Vdc, the trip unit should be fed from a separate, galvanically isolated + 24 V voltage dc supply. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 50 Sensor is customer wired to sense neutral currents. This is required for 3 pole ,4 pole ACB no need to buy the external sensor. Two external neutral transformers must be purchased for the two N-bars of the IZM63 circuit breakers, with serial connection to 11&12...
  • Page 51 Section 6: Wiring diagrams Maintenance mode wiring IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 52 Contacts 32 PTVN MODULE 31 PTVC 30 PTVB 29 PTVA To additional breakers (16 max) BREAKER IZM circuit breaker - 3 pole or 4 pole - 4 wire IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 53 Section 6: Wiring diagrams Zone interlock wiring IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 54: Section 7: Inspection And Maintenance

    Never use a wire brush to clean any part of the circuit wear and erosion. Make appropriate corrections to anything found out of order. breaker. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 55: 7-4.1 Functional Field Testing

    Verify whether the indicator (if so equipped) is popped out and then reset it. Reset the blinking red LED on the trip unit by pressing the Reset/Battery Test pushbutton. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 56: 7-4.3 Primary Contact Inspection

    Failure to do this could result in equip- ment damage, bodily injury, or even death. Once the inspection is completed, be sure to put the arc chutes back to its original place. IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...
  • Page 57 Contact Wear Indicator— Contact Wear Indicator— Contacts Closed and in Good Condition Contacts Closed and Wear is Indicated Figure 8-5 Use of contact wear indicator with circuit breaker closed IZM63 / IN63 low voltage air circuit breaker MN013014EN May 2021 www.eaton.com.cn...

  • Page 58: Section 8: Troubleshooting

    Possible problems associated with the electronic trip unit are covered in MN013011EN. If the problem cannot be resolved with the aid of one or both of these guides, contact the Eaton service center for more in-depth assistance. Table 9.1 Circuit breaker troubleshooting guide.
  • Page 59 Disclaimer of warranties and limitation of liability The information, recommendations, descriptions, and safe- In no event will Eaton be responsible to the purchaser or ty notations in this document are based on Eaton experi- user in contract, in tort (including negligence), strict lia- ence and judgment, and may not cover all contingencies.

This manual is also suitable for:

In63

Table of Contents