OMRON J73MN-T-11S Auxiliary Contact Side Mounting
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OMRON J73MN-T-11S Auxiliary Contact Side Mounting

This Omron J73MN-T-11S Auxiliary Contact Side Mounting is new from surplus stock.

• J73MN: Auxiliary Contact for MPCB
• 11: 1 NO 1 NC
• S: Side Mounting

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Stock # 78650-12
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OMRON J7MN Series Motor Protection Circuit Breakers (MPCB)

  • Rotary and Switch Types
  • Rated Operational Current: 12 A, 25 A, and 50 A
  • Switching Capacity Up To 12.5 A
  • Fixed Short-Circuit Release (13 × Iu)
  • Overload Release Adjustable (0.7 - 1 × Iu)
  • Single Phasing Sensitivity


The OMRON J7MN Series Motor Protection Circuit Breakers (MPCB) are compact, current-limiting circuit-breakers which are optimised for load feeders. The circuit-breakers are used for switching and protecting three-phase induction motors of up to 18,5 kW at AC 400 V and for loads with rated currents of up to 40 A.

Circuit-breakers J7MN are equipped with bimetallic-based, inverse-time delayed overload releases and with instantaneous overcurrent releases (electromagnetic short-circuit releases). The overload releases can be set in accordance with the load current. The overcurrent releases are permanently set to a value 13 times the rated current and thus enable trouble-free start-up of motors. The scale cover can be sealed to prevent unauthorized adjustments to the set current.

The short-circuit releases of J7MN circuit-breakers disconnect the faulty load feeder from the system in the event of a short circuit and thus prevent any further damage. Circuit-breakers with a short-circuit breaking capacity of 50 kA or 100 kA at a voltage of 400 V AC are practically short-circuit-proof at this voltage, as higher short-circuit currents are not usually encountered at the installation point. Back-up fuses are only necessary if the short-circuit current at the installation point exceeds the rated ultimate short-circuit breaking capacity of the circuit-breakers.

The tripping characteristics of J7MN circuit-breakers are designed mainly to protect three-phase induction motors. The circuit-breakers are therefore also referred to as motor circuit-breakers. The current of the motor to be protected is set with the aid of the scale. Circuit-breakers with thermal overload releases are normally designed in accordance with release Class 10.

Product Family: J7MN, J7-MN, J-7MN

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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OMRON J7MN Series Motor Protection Circuit Breakers (MPCB)OMRON J7MN Series Motor Protection Circuit Breakers (MPCB)OMRON J7MN Series Motor Protection Circuit Breakers (MPCB)
OMRON J7MN Series Motor Protection Circuit Breakers (MPCB)

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Manuals, Datasheets, Drivers, Links

OMRON J7MN Datasheet (pdf) 
OMRON J7MN Datasheet 2 (pdf) 
Link to OMRON Website 

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