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Main Circuit Breakers
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1MCB1200NLK - Eaton 1MCB800BLK - Eaton 1MMBPHG - 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 3MCB1200BCLGT - Eaton 3MCB1200BCLGTO - Eaton
3MCB1200BCLNT - Eaton 3MCB1200BCLNTO - Eaton 3MCB1200BCRGT - Eaton
3MCB1200BCRGTO - Eaton 3MCB1200BCRNT - Eaton 3MCB1200BCRNTO - Eaton
3MCB400BCLGT - Eaton 3MCB400BCLGTO - Eaton 3MCB400BCLNT - Eaton
3MCB400BCLNTO - Eaton 3MCB400BCRGT - Eaton 3MCB400BCRGTO - Eaton
3MCB400BCRNT - Eaton 3MCB400BCRNTO - Eaton 3MCB600BCLGT - Eaton
3MCB600BCLGTO - Eaton 3MCB600BCLNT - Eaton 3MCB600BCLNTO - Eaton
3MCB600BCRGT - Eaton 3MCB600BCRGTO - Eaton 3MCB600BCRNT - Eaton
3MCB600BCRNTO - Eaton 3MCB800BCLGT - Eaton 3MCB800BCLGTO - Eaton
3MCB800BCLNT - Eaton 3MCB800BCLNTO - Eaton 3MCB800BCRGT - Eaton
3MCB800BCRGTO - Eaton 3MCB800BCRNT - Eaton 3MCB800BCRNTO - 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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