Enphase BRK-125A-2P-240V 2-Pole 125A Main Breaker

Enphase 125A 2-Pole 240V Main Breaker (BRK-125A-2P-240V / CSR2125N)

The Enphase BRK-125A-2P-240V Main Breaker (Eaton CSR2125N) is a heavy-duty, 2-pole main circuit breaker engineered for integration within the Enphase System Controller (formerly Enpower Smart Switch) and AC distribution panels. Rated at 125 A continuous current with a high 25 kAIC interrupt rating, it provides robust overcurrent and short-circuit protection for grid utility feeds, sub-panels, and high-capacity residential backup loads.

Designed specifically to handle high current demands in 240 VAC split-phase power systems, this breaker automatically trips during overload conditions to prevent thermal damage to system wiring, solar microinverters, and energy storage hardware.

• Main breaker in a distribution panel
• Large loads (HVAC, sub-panels, industrial equipment)
• 240 V circuits requiring high current capacity

Technical Specifications:

• Manufacturer Part Number: BRK-125A-2P-240V
• Shipping Weight: 2.8 lb
• Shipping Dimensions: 6.38 x 5.25 x 5.25 in