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Low-voltage circuit breakers from Daqo Kfine (KFINE): air circuit breakers (ACB) for main and feeder distribution up to 8000 A, and molded case circuit breakers (MCCB) up to 800 A — including intelligent electronic protection and residual current (earth leakage) protection variants.

CB

Circuit Breakers

KFW3 / KFM3X / KFM3XE / KFM3XL

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KFW3 Series Air Circuit Breaker
ACB

KFW3 Series Air Circuit Breaker

  • Frame sizes1600 / 2500 / 4000 / 5000 / 8000
  • Rated operational voltage UeAC690V and below (unified)
  • Rated current In400–8000A
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KFM3X Series Molded Case Circuit Breaker
MCCB

KFM3X Series Molded Case Circuit Breaker

  • Frame sizes100 / 160 / 250 / 400 / 630 / 800
  • Rated operational voltage UeAC690V and below
  • Rated current InUp to 800A; 630A and below for motor protection
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KFM3XE Series Intelligent Molded Case Circuit Breaker
Intelligent MCCB

KFM3XE Series Intelligent Molded Case Circuit Breaker

  • Frame sizes125/160/250/400/630/800, plus KFM3E-1600
  • Rated operational voltage UeAC690V and below
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KFM3XL Series Residual Operated Current Molded Case Circuit Breaker
Residual Current MCCB

KFM3XL Series Residual Operated Current Molded Case Circuit Breaker

  • Frame sizes100 / 160 / 250 / 400 / 630 / 800
  • Rated operational voltage UeAC400V
  • Rated current InUp to 800A
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