Fuji Electric SA63CI - 120A, 3-Pole, Waterproof DC Circuit Breaker

Meet the Fuji Electric SA63CI — a rugged, waterproof DC circuit breaker rated at 120A with a 3-pole configuration. Built for harsh environments, it delivers reliable overcurrent protection for DC power systems in panelboards, switchboards, and control panels.

Three-pole protection means all live conductors can be disconnected simultaneously, enhancing safety and simplifying service in three-phase DC applications. The waterproof design is purpose-built for damp or challenging environments, helping maintain dependable operation in industrial settings where moisture or splashes are a concern. For organizations prioritizing steady, error-free protection in their DC distribution, the SA63CI is a trusted choice.

Key advantages of the Fuji Electric SA63CI

• 120A current rating delivers robust overcurrent protection for mid-sized DC circuits.
• 3-Pole configuration provides complete isolation across all three conductors in three-phase DC systems.
• Waterproof construction engineered for use in environments where moisture exposure is possible, reducing nuisance trips and corrosion risk.
• Versatile installation compatible with panelboards, switchboards, and control panels in industrial, commercial, and OEM setups.
• Reliable safety feature protects wiring and connected equipment from short circuits and overloads, preserving system uptime.

Ideal use scenarios

• Industrial control panels that operate in humid or wet surroundings.
• Motor control centers where three-phase DC protection and quick disconnection are essential for safety.
• Panelboard and switchboard assemblies in commercial facilities requiring durable, dependable DC protection.
• OEM installations that demand a compact, rugged, and easy-to-integrate DC circuit breaker solution.

In practice, the Fuji Electric SA63CI delivers clarity and confidence: it protects your DC distribution network from overloads while ensuring safe, rapid disconnection of all DC conductors when a fault occurs. For engineers and technicians designing or upgrading distribution panels and motor control centers, this 120A, 3-pole waterproof DC circuit breaker is a purposeful, reliable fit that stands up to demanding environments.