General Electric 139C4378G10 5000A 48 V Circuit Breaker

Meet the General Electric 139C4378G10 5000A 48V circuit breaker—engineered for dependable DC power protection in demanding industrial settings. With a robust 5000 A current rating and a 48 V voltage rating, this GE breaker is built to quickly interrupt fault currents and shield your equipment from damage and downtime.

• Part Number: 139C4378G10
• Current rating: 5000 A
• Voltage rating: 48 V
• Manufacturer: General Electric
• Application: DC distribution protection for industrial systems and equipment

Why this GE circuit breaker stands out

• Exact OEM replacement—designed to fit systems that specify the 139C4378G10, ensuring a seamless, drop-in upgrade or replacement.
• High interrupting capacity—capable of handling substantial DC fault currents at 48 V, reducing the risk of arcing and collateral damage.
• Reliability for critical infrastructure—a trusted General Electric component chosen for durability and consistent performance in mission-critical applications.

Ideal use scenarios

• Telecommunications and data-center DC power rails where fail-safe protection is essential.
• Solar, battery storage, or other DC distribution networks requiring strong fault-current interruption at 48 V.
• Industrial control panels and remote power systems that rely on robust, long-lasting protection.
• retrofits or replacements in equipment that originally specification-identified the 139C4378G10 part.

What this means for you in real-world terms

• Protects both equipment and personnel by quickly disconnecting power when anomalies occur, preserving the longevity of sensitive components.
• Minimizes downtime by preventing cascading failures in DC power stages, helping keep operations running smoothly.
• Clear compatibility with systems designed for the 139C4378G10 ensures straightforward maintenance and parts management.

Practical tips for installation and use

• Verify that your DC system operates at or below 48 V and that a 5000 A interrupting capacity is appropriate for your fault-current calculations.
• Confirm the enclosure, mounting, and terminal requirements align with the 139C4378G10 specifications to ensure secure, reliable connections.
• Reference your equipment’s schematics to confirm this part number matches the required OEM specification for continued warranty and performance guarantees.

When you need a dependable, OEM-aligned solution for high-current DC protection, the General Electric 139C4378G10 5000A 48V circuit breaker delivers precise compatibility, robust performance, and peace of mind for your critical Power-Dense applications.