MidNite Solar Circuit Breaker 250A 125VDC 1 Pole Panel Mount - MNEDC250

The MidNite Solar MNEDC250 is a high-amperage, non-polarized panel mount circuit breaker rated for 125VDC with a 50,000 AIC interrupt capacity. This wide-body breaker (1.5 inches / 39mm) is engineered to break the full rated load at the rated voltage repeatedly with NO DAMAGE. It is ideal for very large battery bank disconnects, high-power inverter inputs, main DC load panels, and heavy-duty system disconnects in large off-grid and grid-tied battery-based systems.

Key Features & Benefits

250A Very High Current Capacity: Perfect for large battery bank disconnects, high-power inverter DC inputs, main DC load panels, and heavy-duty system protection for substantial off-grid installations.

125VDC Rating: Suitable for 12V, 24V, and 48V battery-based systems, offering robust protection for high-capacity DC circuits.

Non-Polarized Design: Can be installed in either orientation without concern for polarity, simplifying installation and reducing wiring errors.

50,000 AIC Interrupt Capacity: Very high interrupting capacity provides exceptional protection against severe fault currents in large battery bank systems.

Repeated Load Breaking Capability: Built to break the full rated load at rated voltage repeatedly with no damage, unlike standard breakers not designed for solar applications.

100% Rated Current in MidNite Enclosures: Can be used at full rated current (250A) without derating when mounted in a MidNite Solar enclosure.

Heavy-Duty 1.5-Inch (39mm) Width: Wider body than standard breakers, designed to handle very high currents and accommodate larger wire sizes with 3/8" studs.

High Torque Rating: Breaker torque value of 15 Ft-Lbs (20.4NM) ensures secure, reliable connections for heavy-gauge cables.

Includes Mounting Screws: Comes with two 10-32 x 3/8 pan head Phillips mounting screws for easy installation.

Indoor Installation (Type 1): Rated for indoor use in dry locations, suitable for load centers, combiner boxes, and equipment rooms.

Listed for US & Canada: ETL listed for North American installations when used in appropriate enclosures.

5-Year Warranty: Backed by a 5-year warranty for peace of mind.

Technical Specifications

Important Technical Notes

Non-Polarized Design: Unlike polarized breakers that require correct orientation for DC circuits, the MNEDC250 is non-polarized, allowing installation in either direction without concern.

High AIC Rating: With a 50,000 AIC rating at 125VDC, this breaker is designed to safely interrupt very high short-circuit currents typical of large battery banks.

Case Quantity: A case contains 3 breakers.

100% Rated Current: All MidNite circuit breakers can be used at 100% rated current when mounted in a MidNite enclosure.