Single Pole Circuit Breakers

Single Circuit Breakers — New & Used

Single circuit breakers provide overcurrent protection for single-phase circuits, safeguarding wiring, lighting, and equipment from overloads, short circuits, and electrical faults. They are a staple in residential, commercial, and light-industrial electrical panels for protecting branch circuits and individual loads.

At Surplus Select, we offer a wide selection of new and used OEM 1-pole breakers and MCCBs across various current and voltage ratings. Surplus pricing makes it affordable for electricians, contractors, facility managers, and maintenance teams to source reliable protection devices for panel builds, upgrades, or spare-parts inventory.

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

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 so you can get 1-pole breakers quickly for installs or repairs.

Find Your Breaker Fast (Search-First)

Search by breaker model or specification (e.g., Single-pole 20 A breaker, 120 V MCCB 1P, circuit breaker 1-pole used).
Without model number? Search “1-pole breaker 15 A”, “120 V panel breaker”, or “single-phase breaker surplus”.
Use filters like voltage rating, current rating, breaker type (thermal-magnetic, GFCI, etc.), or manufacturer for more precise results.

Applications & Use Cases

Residential & commercial panels: Protect lighting, outlets, small motors, appliances, and branch circuits on 120 V single-phase systems.
Upgrades & panel builds: Use in new installations or retrofits to ensure overcurrent protection and code compliance.
Spare parts & maintenance: Stock single breakers for quick replacement after circuit faults or breaker trips.
Light industrial loads: Protect small motors, control circuits, HVAC units, and other single-phase equipment.
Electrical upgrades & expansions: Add circuits, modify wiring, or expand panels using surplus breakers to reduce cost while maintaining safety.

Why Buy 1-Pole Circuit Breakers from Surplus Select

New & Used Availability: OEM single-pole breakers and MCCBs of various ratings available at surplus pricing.
Reliable Protection: Provide overcurrent and short-circuit protection for residential, commercial, and light-industrial circuits.
Cost-Effective Sourcing: Surplus inventory helps reduce procurement cost for panel builds, maintenance, and spare-parts stocking without sacrificing safety.
Fast Shipping: Most orders ship same or next business day — ideal for urgent repairs or installations.