Technical data

Engineered specifically for demanding direct current applications, the General Electric SC6-63DC DC MCB Breaker serves as a critical defense line for photovoltaic arrays, battery energy storage facilities, and electric vehicle charging infrastructure. Meeting strict IEC/EN 60947-2 international safety standards, this breaker ensures reliable fault isolation and operational continuity for large-scale engineering projects. The exterior casing is constructed from specialized flame-retardant polymers, providing a dense, substantial feel in the hand while guaranteeing exceptional thermal stability. This material choice directly contributes to an impressive mechanical lifespan of 20,000 cycles, significantly reducing long-term maintenance requirements. Inside, the heavy-duty copper components and precise thermomagnetic tripping mechanism work in tandem to deliver millisecond-level response times against overloads and short circuits. Project managers and system integrators rely on these precise specifications to safeguard expensive downstream solar inverters and battery cells from unpredictable voltage surges.

■ Standard   □ Optional   ─ No

Wiring diagram

Understanding the wiring configuration is essential for maximizing the protective capabilities of this DC miniature circuit breaker. The internal architecture features a highly responsive thermomagnetic trip mechanism designed to isolate fault currents in mere milliseconds, preventing catastrophic damage to sensitive electronic loads. Beyond primary circuit protection, the SC6-63DC offers extensive integration flexibility. System designers can easily incorporate auxiliary contacts, alarm contacts, and shunt releases to connect the breaker with advanced automated monitoring networks.

• Immediate Fault Isolation: The internal magnetic coil responds instantly to short circuits, while the bimetallic strip provides accurate thermal overload protection.

• Tactile and Visual Feedback: Operating the manual toggle switch delivers a firm, reassuring mechanical resistance, accompanied by a clear visual indicator window that instantly confirms the contact status.

• Intelligent System Integration: Optional electrical accessories allow for remote status monitoring and automated tripping, essential for modern energy management setups.

Note:
L+power supply positive pole     ⊕Positve pole of circuit breakerL-power cathode                            ⊖Negative pole of circuit breakerPlease place a note for other wiring methods while placing an order.

Overall and mounting dimensions(mm)

Space-Optimized Enclosure Design

Physical footprint is a critical factor when designing compact distribution boxes for solar arrays or EV charging stations. The streamlined profile of this DC breaker minimizes wasted space on the panel, allowing engineers to maximize the number of protective devices within a single enclosure. The standard DIN35 rail mounting mechanism ensures rapid, secure installation. When pressed onto the metal rail, the spring-loaded mounting clip engages with a crisp, audible snap, confirming a locked and vibration-resistant fit.

Extreme Environmental Adaptability

Field deployments often expose electrical components to severe climate variations. This unit maintains consistent performance across extreme temperature gradients, functioning reliably from a freezing -35℃ up to a blistering +70℃. The specialized moisture-resistant housing (Category 2) and Level 3 pollution degree rating mean it readily withstands the condensation, dust, and voltage fluctuations typical of harsh outdoor environments and high-altitude installations.

Note:
L+power supply positive pole     ⊕Positve pole of circuit breakerL-power cathode                            ⊖Negative pole of circuit breakerPlease place a note for other wiring methods while placing an order.

Overall and mounting dimensions(mm)

Precise dimensional planning ensures that every component aligns perfectly within complex industrial control panels. The exact measurements provided below assist procurement teams and electrical draftsmen in verifying clearances for wiring channels and thermal dissipation gaps. Proper spacing is vital for maintaining the 1200V DC rated insulation voltage and ensuring the 4KV rated impulse voltage protection remains uncompromised during daily operations.

The physical construction of the breaker reflects its industrial-grade intent. The terminal clamps are engineered with deep, precision-cut threads that grip 2.5-25mm² conductors with immense force. When an installer applies the recommended 3.5N·m of torque, the connection feels completely solid, eliminating the risk of micro-arcing caused by loose wires. The matte industrial grey finish of the breaker resists surface scratching during installation, while the clearly printed technical parameters on the front face remain highly legible even in low-light maintenance scenarios. This attention to physical detail ensures that the product not only performs exceptionally under electrical stress but also streamlines the physical workflow for field technicians.