EATON HJW Series Complete Molded Case Circuit Breakers, J Frame
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EATON HJW Series Complete Molded Case Circuit Breakers, J Frame


Eaton circuit breakers (HJW Series) offer protection by cutting off electrical supply during short-circuit & overload occurrences. They are used in renewable energy systems, motor control centres and power distribution systems.

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EATON HJW3250D17A
EATON HJW3125B
StyleModelPrice (ex. VAT)
A
HJW3250D17		€9,748.80
A
HJW3250		-
RFQ
A
HJW3125V		€11,511.51
A
HJW3160		€11,511.51
A
HJW3160V		€11,511.51
A
HJW3125VD14X		€10,465.02
A
HJW4125V		-
RFQ
A
HJW4250V		€11,483.17
A
HJW4200V		€11,483.17
B
HJW3125		€11,511.51
A
HJW4160V		-
RFQ
A
HJW3160VD14X		€10,465.02
A
HJW3200V		€11,511.51
B
HJW3200		€11,511.51
A
HJW3250V		-
RFQ
A
HJW4250		-
RFQ
A
HJW4125		-
RFQ
A
HJW3200VD14X		€10,465.02
A
HJW3250VD14X		-
RFQ

Features

  • These circuit breakers feature a thermal-magnetic trip unit that provides both time-delayed and instantaneous protection.
  • Eaton HJW Series complete MCCBs have an J frame for protecting electrical devices from overcurrents and short circuits.
  • These MCCBs have an interrupt capacity of 70kAIC at 600VAC.
  • They feature fixed thermal / fixed magnetic trips for quick response time & overcurrent protection.
  • These Eaton HJW series moulded case circuit breakers have a 4 pole configuration to provide a standard current flow up to 250A.
  • Selected models have line and load end caps for improved safety and easy installations.

Standards and Approvals

  • UL

Frequently Asked Questions

What is the difference between MCCBs and MCBs?

  • MCCBs safeguard equipment from fault currents & excess temperature rise, while MCBs protect items against current overloads.
  • MCBs retain comparatively low interrupting ratings as compared to MCCBs.
  • The tripping circuit of MCBs are fixed, while MCCBs have a movable tripping circuit.

Does temperature affect moulded case circuit breakers?

Extreme heat can cause circuit breakers to trip, even without an overload, as the bimetallic strip inside flexes and contacts to activate the breaker.

How are circuit breakers better than fuses?

  • Circuit breakers can be easily reset and reused after tripping, while fuses cannot be reused if blown once.
  • Circuit breakers offer precise protection by tripping at specific current thresholds, whereas fuses may have varying trip characteristics, making it difficult to find the exact fuse rating for a circuit.
  • Circuit breakers often include ground fault protection (GFCI) and arc fault detection (AFCI), enhancing safety against electrical shocks and fire hazards. Fuses lack these built-in sensing capabilities.

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