GACIA N8BH 10kA C Curve Single Pole 25A Miniature Circuit Breaker

Electrical overloads and short circuits can cause severe damage to wiring and connected equipment, leading to costly repairs and potential safety hazards. The GACIA N8BH 10kA C 1P 25A miniature circuit breaker provides reliable protection for residential and commercial circuits, automatically disconnecting the supply when fault currents exceed safe levels. With a rated current of 25 A and a breaking capacity of 10 kA, it safeguards installations against both thermal overloads and magnetic short circuits.

Who is it for

This MCB is ideal for electricians, panel builders, and maintenance professionals who need dependable overcurrent protection in distribution boards, consumer units, and control panels. It suits applications with moderate inrush currents, such as lighting circuits, socket outlets, and small motors, where a C curve trip characteristic prevents nuisance tripping while ensuring rapid response to genuine faults.

Main features

• Single-pole design for 230 V AC circuits, occupying just 18 mm (1 module) of DIN rail space.
• C tripping curve: magnetic trip operates at 5–10 times rated current, ideal for general-purpose loads.
• High breaking capacity of 10 kA according to IEC/EN 60898-1, ensuring safe interruption of severe short circuits.
• Energy limiting class 3, reducing let-through energy and protecting downstream equipment.
• Clear ON/OFF position indicator for quick status identification.
• Screw terminals accept conductors from 1 to 25 mm², providing secure and versatile connection.

Specifications

• Rated current: 25 A
• Number of poles: 1P
• Tripping curve: C
• Rated breaking capacity (Icn): 10 kA
• Rated voltage: 230 V AC
• Rated frequency: 50/60 Hz
• Mounting: DIN rail (EN 60715 TH35)
• Standard: IEC/EN 60898-1
• Protection degree: IP20
• Terminal capacity: 1-25 mm²
• Electrical endurance: 10,000 cycles
• Mechanical endurance: 20,000 cycles
• Operating temperature: -25°C to +50°C
• Energy limiting class: 3
• Module width: 18 mm (1 module)

Tips

For optimal protection, select an MCB with a rated current slightly above the circuit's normal operating current but below the maximum current the wiring can safely handle. The C curve is suitable for most general-purpose circuits; use a B curve for purely resistive loads or a D curve for high inrush equipment.