Eaton IZMY Series Instruction Manual
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Eaton IZMY Series Instruction Manual

Eaton IZMY Series Instruction Manual

Air circuit breakers
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Instruction Manual MN013020EN
IZMY Series Air Circuit Breakers Instruction Manual
Instructions apply to:
IZMY16
IZMY25/40

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  • Page 1 Instruction Manual MN013020EN IZMY Series Air Circuit Breakers Instruction Manual Instructions apply to: IZMY16 IZMY25/40...
  • Page 2 Never attempt to disable any interlocks. Doing so IZMY Series circuit breakers as presented in this manual. could result in an electrical fault that could result in death, bodily injury, and/or equipment damage.
  • Page 3 Eaton representative. For application information, consult Eaton or see applicable Product Guides, Technical Documents, and Industry Standards. IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 4: Table Of Contents

    SECTION 8. INSTALLATION, OPERATION AND MAINTENANCE NOTICE ......25 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN...

  • Page 5: Section 1. Circuit Breaker Overview

    Usage and scope of application IZMY air circuit breakers are available with continuous current The IZMY series intelligent general-purpose circuit breakers ratings from 400 A to 4000 A. The circuit breaker nameplate (hereafter referred to as circuit breakers) are a new- provides complete rating information.

  • Page 6: Section 2. Circuit Breaker Structure

    Position locking device Lock catch button Three-position indication Nameplate Open/Closed indication Released/Charged indication Manual charging handle Closing button Opening button Fault tripping indicator/Reset button (not applicable on switch disconnectors) IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 7: Internal Structure: Fixed/Drawout Types

    Secondary terminal Delivery handle Operating mechanism Basic device Trip unit Reset button Opening button Closing button Cover Auxiliary contact Closing (Spring) release Charging handle Charging motor IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 8: Section 3. Circuit Breaker Installation

    Circuit breaker Hexagon head bolt Nut GB6170- Washer GB97 IZMY GB5783- GB93- IZMY16 M10×30 Φ10 IZMY25 M12×30 Φ12 IZMY40 M12×30 Φ12 Note: Detailed mounting methods and positions are shown below. IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 9: Derating Factors

    The copper bar specifications used in the table are when the circuit breaker is at the ambient temperature of up to 40 °C and installed in an open area, in accordance with the conventional thermal conditions in GB14048.2. IZMY Series Air Circuit Breakers Instruction Manual MN013020EN...

  • Page 10: Section 4. Accessory

    150 VA Shunt release Charging time (s) The shunt release enables the circuit breaker to open remotely. • IZMY16/25/40 GB29.2 2×M4×62 GB93 2×Φ4 GB9074.8 M4x10 GB97 2×Φ4 IZMY16 IZMY25/40 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 11: Internal Auxiliary Contact

    (0.85-1.1) U Reliable no-closing voltage(V) ≤0.35 U Pickup power IZMY16 263 W 570 W IZMY25/40 228 W 456 W Maintaining IZMY16 2.2 W power IZMY25/40 5.7 W 4.2 W IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 12: Position Cell Switch

    Opening as a result of a circuit breaker’s manual open button, shunt trip, or undervoltage release does not cause the overcurrent trip switch to operate. Overcurrent trip switches are available in two switch combinations only. IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 13: Mechanical Interlock

    Section 5. Circuit breaker operation Mechanical interlock Mechanical interlocks are available to interlock the operation of two or three IZMY Series circuit breakers. The mechanical Charging operation interlock holds one or more circuit breakers tripped (prevents closure) when others are closed.

  • Page 14: Lever-In Operation Of Drawout Circuit Breaker

    "unlock button" will be ejected. At this point, the circuit breaker has fully reached the mounting position, so you can no longer continue to turn the crank handle clockwise IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 15: Drawout Circuit Breaker Position Locking

    It is forbidden to test the circuit breaker when in the connected position. IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 16: Section 6. Outline And Mounting Dimension Diagrams

    400-1250 A 1600 A Dimension B 131.5 (mm) Door escutheon cutout 门框开孔 断路器底面 断路器底面 bottom bottom 11×Ø5 11×Ø5 Cutout center CB center Cutout center CB center 断路器中心 断路器中心 开孔中心 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 17 1600 A Dimension B 13.5 (mm) 13.5 87.5 Door escutheon cutout 门框开孔 断路器底面 bottom bottom 断路器底面 Cutout center CB center 10×Ø5 断路器中心 CB center Cutout center 开孔中心 10×Ø5 断路器中心 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 18 Door escutheon cutout 门框开孔 327.2 327.2 57.5 CB bottom CB bottom 断路器底面 断路器底面 CB center Cutout center CB center Cutout center 断路器中心 开孔中心 11×Ø5 11×Ø5 断路器中心 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 19 (mm) Door escutheon cutout 门框开孔 327.2 327.2 57.5 断路器底面 断路器底面 bottom bottom CB center Cutout center CB center Cutout center 断路器中心 8×Ø5 断路器中心 8×Ø5 开孔中心 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 20 Drawout type (IZMY40 2000-3200 A) Front view 前视图 Vertical wiring 垂直接线 277.5 162.5 4xØ13 4x(13x23) 4xØ13 4x(23x13) Disconnected position 分离位置 Outside of the door 柜门外边 3×Ø13 12.5 Standard type 标准型 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 21 Door escutheon cutout 门框开孔 327.2 327.2 57.5 断路器底面 断路器底面 bottom bottom CB center CB center Cutout center 断路器中心 11×Ø5 断路器中心 开孔中心 11×Ø5 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 22 Vertical wiring 垂直接线 277.5 162.5 4xØ13 4x(13x23) 4xØ13 4x(13x23) Disconnected position 分离位置 Outside of the door 柜门外边 4xØ13 166.5 The shaped part is the lap surface of the busbar IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 23 Outside of the door 柜门外边 4xØ13 Door escutheon cutout 门框开孔 327.2 327.2 57.5 断路器底面 断路器底面 bottom bottom CB center CB center Cutout center 断路器中心 11×Ø5 11×Ø5 断路器中心 开孔中心 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 24 Ø11 Distance when removing the arc chamber 拆卸灭弧室距离 Outside of the door 柜门外边 3×Ø13 Standard type 12.5 The shaped part is the lap surface of the busbar 标准型 122.7 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 25 The shaped part is the lap surface of the busbar 122.7 Door escutheon cutout 门框开孔 327.2 327.2 57.5 断路器底面 断路器底面 bottom bottom CB center CB center Cutout center 断路器中心 断路器中心 开孔中心 8×Ø5 8×Ø5 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 26 Ø11 Distance when removing the arc chamber 拆卸灭弧室距离 Outside of the door 柜门外边 3×Ø13 12.5 (Connecting area) The shaped part is the lap surface of the busbar 标准型 122.7 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 27 81.5 4×Ø13 176.2 Door escutheon cutout 门框开孔 327.2 327.2 57.5 断路器底面 断路器底面 bottom bottom CB center CB center Cutout center 断路器中心 断路器中心 开孔中心 8×Ø5 8×Ø5 185.2 185.2 185.2 185.2 IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 28: Section 7. Electrical Wiring Diagrams

    43 45 46 48 49 51 52 54 + + + UVR/ST(2) 4 sets of auxiliary contacts equipped as standard delivery Position cell switch electrical wiring diagram Connect Test Disconnected IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...

  • Page 29: Section 8. Installation, Operation And Maintenance Notice

    “Charged” . After a “click” sound is heard, the charging is done. The circuit breaker can only be put into operation after testing with the above steps to prove normal operations! IZMY Series Air Circuit Breakers Instruction Manual MN013020EN January 2024 www.eaton.com...
  • Page 30 Section 8. Installation, operation and maintenance notice The following table allows you to determine the cause of the fault and how to troubleshoot. If the fault still exists, please contact an Eaton representative. Symptom Probable cause Possible solutions The circuit breaker opens Overload fault trip ("Ir1"...
  • Page 31 Notes...
  • Page 32 IZMY devices: MODIFY ANY CONTRACT BETWEEN THE PARTIES. • USB port In no event will Eaton be responsible to the purchaser • Access to this port should be restricted. or user in contract, in tort (including negligence), strict liability, or otherwise for any special, indirect, incidental, or •...

This manual is also suitable for:

Izmy16Izmy25Izmy40

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