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IER Electrical stocks a full line of enclosed circuit breakers that can be assembled and shipped to meet customer demand.

Custom built enclosed circuit breakers setups are available from the simple single device in a can to a 1200a ground fault circuit breaker with bell alarm and shunt trip ready to report to to a PLC if there is a problem.

IN STOCK enclosed circuit breakers range from 15a to 4000a, and can be installed in NEMA 1, NEMA 3R, NEMA 4X Stainless Steel, NEMA 4X Non-Metallic, and NEMA 7/9 enclosures. NEMA 7/9 explosion proof enclosures can be drilled and tapped to meet your specs.

Circuit Breaker Brands…

  • Siemens
  • GE
  • Eaton
  • Square D
  • ABB

As with all materials and services, IER offers a full 2 year warranty and quick ship delivery as well as a true 24/7 emergency service.

Enclosed Circuit Breakers

Enclosed Circuit Breakers

Circuit Breaker Ranges

Voltage: 120 to 600 V
Amperage: 0 to 4,000 A
NEMA: 1, 3R, 4X, and 7

Contact IER today for more information!

Enclosure Types

NEMA 1: Up to 4,000 A
NEMA 3R: Up to 4,000 A
NEMA 4X: Up to 1,200 A
NEMA 7/9: Up to 800 A

Enclosed Circuit Breakers

Enclosed Circuit Breakers

Enclosed Circuit Breakers

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