his 63 A DC MCB from M&M is engineered to provide reliable protection for direct‑current circuits, guarding against overloads and short circuits. It is especially suited for solar‑PV systems, battery banks, DC distribution panels and other high‑current DC installations.

Key Features & Benefits:

• Rated current: 63 A (DC) — suitable for substantial loads in DC systems.

• Protection for DC circuits: Overload protection + short‑circuit protection in a DC environment.

• Modular DIN‑rail compatible design — installs easily in standard distribution boards.

• Ensures safety in high‑current DC applications: battery banks, inverter inputs, solar arrays.

• Helps reduce risk of equipment damage, fire hazards and wiring overload in DC setups.

Functions:

• Over‑current protection: trips when current exceeds safe limits for the rated circuit.

• Short‑circuit protection: rapid interruption when fault current spikes occur.

• Manual ON/OFF switching: acts as a control device when needed.

• Isolation: allows safe maintenance or shutdown of the DC circuit.

• Compact format: simplifies installation in panel boards, saves space.

Applications:

• Solar photovoltaic systems (DC side)

• Battery storage systems and inverters

• DC distribution boards for telecom/industrial equipment

• Any DC circuit requiring high‑capacity protective switching

Installation & Use Tips:

• Ensure the breaker rating (63 A) matches or exceeds the expected DC load current.

• Verify DC voltage rating of the breaker suits your system voltage (e.g., 250 VDC, 500 VDC, etc).

• Mount on a DIN rail and ensure wiring is sized correctly for the current and polarity.

• Use appropriate upstream isolation/fuse and ensure good earthing/grounding practices.

• Periodically inspect for signs of wear, overheating or overload conditions.

Package Contents:

• 1 × M&M 63 A DC Miniature Circuit Breaker (selected model)

• Installation/Operation Instructions