4-Pole Circuit Breakers

4-Pole Circuit Breakers — New & Used

4-pole circuit breakers are electrical protection devices designed to safeguard multi-phase power systems by interrupting current in all phases simultaneously. They help prevent overloads, short circuits, and phase-loss faults — protecting motors, control panels, and electrical systems in commercial and facility installations.

At Surplus Select, we offer a range of new and used OEM 4-pole circuit breakers from trusted manufacturers, compatible with various voltage and current ratings. Our surplus pricing lets electricians, facility managers, and maintenance teams source reliable protection devices affordably and keep systems safe and compliant.

Price Match — We match any authorized distributor on identical in-stock parts so you get surplus pricing with distributor-level assurance.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward the parts you actually need.

Fast U.S. Shipping — Most orders ship same or next business day to keep your installations and maintenance on schedule.

Find Your Circuit Breaker Fast (Search-First)

Search by breaker's model number or specs (e.g., 4-pole 100 A breaker, 600 V MCCB, 4P circuit breaker used).
No model number? Try generic descriptors like: “4-pole breaker 400 A”, “multi-phase circuit breaker”, or “circuit breaker 4P surplus”.
Need to narrow down? Add voltage rating, current rating, breaker type (MCCB, ACB, etc.), or manufacturer.

Applications & Use Cases

Three-phase electrical panels: Protect motors, drives, and equipment in industrial or commercial power distribution systems.
HVAC & facility power systems: Safeguard compressors, pumps, and large electrical loads against overloads and short circuits.
Control panels & switchboards: Use in new electrical builds or retrofits to provide reliable multi-phase protection.
Maintenance & upgrades: Replace old or failed breakers with surplus components to restore safe operation quickly.
Spare inventory for spares & emergency replacement: Keep breakers on hand to minimize downtime when equipment trips or fails.

Why Buy 4-Pole Circuit Breakers from Surplus Select

New & Used Availability: OEM 4-pole breakers and MCCBs at surplus pricing to meet different electrical needs and budgets.
Reliable Protection: Protect multi-phase, high-load circuits — reducing risk of overloads, short circuits, and equipment damage.
Cost-Effective Sourcing: Surplus inventory lowers costs for maintenance, retrofits, and spare-part stocking without compromising safety or compliance.
Fast Shipping: Most orders ship same or next business day — ensuring fast turnaround for repairs or installations.