This high‑capacity DC miniature circuit breaker is designed for heavy‑duty direct‑current protection. With a 125 A rating, it safeguards DC circuits from overloads and short‑circuits—ideal for solar, battery backup, inverter and other high‑current DC systems.

Key Features

• Rated Current: 125 A (DC) — supports high‑current applications

• Pole Configuration: (typically) 2‑pole for full isolation of both positive and negative conductors

• Compact Modular Design: Built for DIN‑rail mounting inside distribution boards

• Protection Functions: Overload protection, short‑circuit protection, circuit isolation

• Durable Construction: Heat‑resistant housing and designed for long‑term performance in DC environments

Applications

• Solar PV systems with battery storage

• DC systems in renewable energy setups

• Inverter circuits, off‑grid power systems

• Any high‑current DC distribution board requiring reliable protection

Why Choose This Breaker?

• Handles high‑current DC loads (125A) — many standard MCBs are lower capacity

• Helps ensure safe isolation of DC circuits (especially for battery/inverter systems)

• Simplifies installation with modular DIN‑rail form factor

• Gives peace of mind for industrial‑grade DC protection

Installation & Use Tips

• Ensure the breaker’s rating (125 A) matches or exceeds your circuit’s maximum expected current.

• Confirm that the pole count and negative/positive isolation meet your DC wiring scheme.

• Install on a standard 35 mm DIN‑rail in the panel board.

• Ensure good cable sizing, proper torque on terminals, and correct polarity.

• Use this breaker alongside proper upstream protection (fuses or isolators) and ensure correct earthing/grounding practices.