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Main Circuit Breakers
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1MCB1000R - Eaton 1MCB1000R750 - Eaton 1MCB1000R750C - Eaton
1MCB1000RC - Eaton 1MCB1000RCCL - Eaton 1MCB1200NLK - Eaton
1MCB1200R - Eaton 1MCB1200RC - Eaton 1MCB1200RCCL - Eaton
1MCB1400RBC - Eaton 1MCB1400RBC-600 - Eaton 1MCB1400RT-600 - Eaton
1MCB1400RUGCCL - Eaton 1MCB1600RBC - Eaton 1MCB1600RBC-600 - Eaton
1MCB1600RBCST - Eaton 1MCB1600RT - Eaton 1MCB1600RT-600 - Eaton
1MCB1600RTST - Eaton 1MCB1600RUGCCL - Eaton 1MCB2000RBC - Eaton
1MCB2000RT - Eaton 1MCB2000RUGCCL - Eaton 1MCB250R - Eaton
1MCB300R - Eaton 1MCB350R - Eaton 1MCB400R - Eaton
1MCB400RC - Eaton 1MCB400RCL - Eaton 1MCB500R - Eaton
1MCB600R - Eaton 1MCB600RC - Eaton 1MCB600RCCL - Eaton
1MCB600RCL - Eaton 1MCB800BLK - Eaton 1MCB800R - Eaton
1MCB800R750 - Eaton 1MCB800RC - Eaton 1MCB800RCL - Eaton
1MCBE1000R - Eaton 1MCBE1000RC - Eaton 1MCBE1200R - Eaton
1MCBE300R - Eaton 1MCBE350R - Eaton 1MCBE400R - Eaton
1MCBE500R - Eaton 1MCBE600R - Eaton 1MCBE800R - Eaton
1MHCB1200R - Eaton 1MHCB1600RUGCCL - Eaton 1MHCB2000RUGCCL - Eaton
1MHCB800R - Eaton 1MHCB800RC - Eaton 1MHCB900RC - Eaton
1MHCBE1200R - Eaton 1MHCBE400R - Eaton 1MHCBE600R - Eaton
1MHCBE800R - Eaton 1MMBPHG - Eaton 1MMSURGE - Eaton
37MMAN - Eaton 3HMCB1000BCLGT - Eaton 3HMCB1000BCLGTO - Eaton
3HMCB1000BCLNT - Eaton 3HMCB1000BCLNTO - Eaton 3HMCB1000BCRGT - Eaton
3HMCB1000BCRGTO - Eaton 3HMCB1000BCRNTO - Eaton 3HMCB1200BCLGT - Eaton
3HMCB1200BCLGTO - Eaton 3HMCB1200BCLNTO - Eaton 3HMCB1200BCRGT - Eaton
3HMCB1200BCRGTO - Eaton 3HMCB1200BCRNT - Eaton 3HMCB1200BCRNTO - Eaton
3HMCB400BCLGT - Eaton 3HMCB400BCLGTO - Eaton 3HMCB400BCLNT - Eaton
3HMCB400BCLNTO - Eaton 3HMCB400BCRGT - Eaton 3HMCB400BCRGTO - Eaton
3HMCB400BCRNT - Eaton 3HMCB400BCRNTO - Eaton 3HMCB600BCLGT - Eaton
3HMCB600BCLGTO - Eaton 3HMCB600BCLNT - Eaton 3HMCB600BCLNTO - Eaton
3HMCB600BCRGT - Eaton 3HMCB600BCRGTO - Eaton 3HMCB600BCRNT - Eaton
3HMCB600BCRNTO - Eaton 3HMCB800BCLGT - Eaton 3HMCB800BCLGTO - Eaton
3HMCB800BCLNT - Eaton 3HMCB800BCLNTO - Eaton 3HMCB800BCRGT - Eaton
3HMCB800BCRGTO - Eaton 3HMCB800BCRNT - Eaton 3MCB1000BCLGT - Eaton
3MCB1000BCLGTO - Eaton 3MCB1000BCLNT - Eaton 3MCB1000BCLNTO - Eaton
3MCB1000BCRGT - Eaton 3MCB1000BCRGTO - Eaton 3MCB1000BCRNT - Eaton
3MCB1000BCRNTO - Eaton 3MCB1000R - Eaton 3MCB1000R750 - Eaton
3MCB1000R750C - Eaton 3MCB1000RC - Eaton 3MCB1000RCCL - Eaton
3MCB1200BCLGT - Eaton 3MCB1200BCLGTO - Eaton 3MCB1200BCLNT - Eaton
3MCB1200BCLNTO - Eaton 3MCB1200BCRGT - Eaton 3MCB1200BCRGTO - Eaton
3MCB1200BCRNT - Eaton 3MCB1200BCRNTO - Eaton 3MCB1200R - Eaton
3MCB1200R750C - Eaton 3MCB1200RC - Eaton 3MCB1200RCCL - Eaton
3MCB1400RBC - Eaton 3MCB1400RBC-600 - Eaton 3MCB1400RT - Eaton
3MCB1400RT-600 - Eaton 3MCB1600RBC - Eaton 3MCB1600RBC-600 - Eaton
3MCB1600RBCST - Eaton 3MCB1600RT - Eaton 3MCB1600RT-600 - Eaton
3MCB1600RTST - Eaton 3MCB1600RUGCCL - Eaton 3MCB2000RBC - Eaton
3MCB2000RT - Eaton 3MCB2000RUGCCL - Eaton 3MCB250R - Eaton
3MCB300R - Eaton 3MCB300RCL - Eaton 3MCB350R - Eaton
3MCB400BCLGT - Eaton 3MCB400BCLGTO - Eaton 3MCB400BCLNT - Eaton
3MCB400BCLNTO - Eaton 3MCB400BCRGT - Eaton 3MCB400BCRGTO - Eaton
3MCB400BCRNT - Eaton 3MCB400BCRNTO - Eaton 3MCB400R - Eaton
3MCB400RC - Eaton 3MCB400RCL - Eaton 3MCB500R - Eaton
3MCB600BCLGT - Eaton 3MCB600BCLGTO - Eaton 3MCB600BCLNT - Eaton
3MCB600BCLNTO - Eaton 3MCB600BCRGT - Eaton 3MCB600BCRGTO - Eaton
3MCB600BCRNT - Eaton 3MCB600BCRNTO - Eaton 3MCB600R - Eaton
3MCB600RC - Eaton 3MCB600RCL - Eaton 3MCB700R - Eaton
3MCB800BCLGT - Eaton 3MCB800BCLGTO - Eaton 3MCB800BCLNT - Eaton
3MCB800BCLNTO - Eaton 3MCB800BCRGT - Eaton 3MCB800BCRGTO - Eaton
3MCB800BCRNT - Eaton 3MCB800BCRNTO - Eaton 3MCB800R - Eaton
3MCB800R750 - Eaton 3MCB800RC - Eaton 3MCB800RCL - Eaton
3MCB900R - Eaton 3MCB900RC - Eaton 3MCBE1000R - Eaton
3MCBE1000RC - Eaton 3MCBE1200R - Eaton 3MCBE300R - Eaton
3MCBE350R - Eaton 3MCBE400R - Eaton 3MCBE500R - Eaton
3MCBE600R - Eaton 3MCBE800R - Eaton 3MHCB1000R - Eaton
3MHCB1000RCCL - Eaton 3MHCB1200R - Eaton 3MHCB1200RC - Eaton
3MHCB1200RCCL - Eaton 3MHCB1600RUGCCL - Eaton 3MHCB2000RUGCCL - Eaton
3MHCB250R - Eaton 3MHCB300R - Eaton 3MHCB400R - Eaton
3MHCB400RC - Eaton 3MHCB400RCL - Eaton 3MHCB500R - Eaton
3MHCB600R - Eaton 3MHCB700R - Eaton 3MHCB800R - Eaton
3MHCB800RCL - Eaton 3MHCB900R - Eaton 3MHCB900RC - Eaton
3MHCBE1200R - Eaton 3MHCBE800R - Eaton 3MMSURGE - Eaton
3MMSURGEH - Eaton Eaton / Westinghouse - A8NES800T2 Eaton / Westinghouse - A8NES800T1
Eaton Westinghouse - ND2800T33W
   
 
Eaton's main circuit breakers are part of the main service modules used as service entrance equipment and housed in a rainproof enclosure. Eaton offers both main fusible switch and main circuit breaker group metering mains with busway connections allowing you to have multi-tenant metering in high-rise apartment buildings where riser busway is used. Select 3-phase, 400–200A main circuit breakers or 3-phase, 400–800A main fusible switches with aluminum or copper bus.
  • Two-pole breakers are 120/240 Vac, field installed
  • Three-pole breakers are 208Y/120 Vac, field installed
  • Bolt-on type circuit breakers used with 35MM and 35SS (single-phase modular metering stacks)
  • Bolt-on type circuit breakers used with 37MM and 37SS (three-phase modular metering stacks)
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