EATON FRCDM-63/4/003-G/B Residual Current Circuit Breaker (RCCB), Type B, 4-Pole, 63A, 30mA

For electricians and panel builders working on modern three-phase systems, the EATON FRCDM-63/4/003-G/B residual current circuit breaker offers dependable all-current sensitive protection. Whether you are upgrading a distribution board or installing new equipment in commercial or industrial settings, this Type B RCCB ensures safety against AC and DC fault currents.

Key specifications

• Residual Current Device (RCCB) with Type B sensitivity to all-current faults
• 4-pole design for three-phase networks
• Rated current (In): 63 A
• Rated residual operating current (IΔn): 30 mA
• Rated voltage (Un): 230/400 V AC, 50/60 Hz
• Conditional rated short-circuit current (Inc): 10 kA
• Rated impulse withstand voltage (Uimp): 4 kV
• Surge current resistance: 3 kA (8/20 µs)
• Instantaneous tripping characteristic
• DIN rail mounting, 4.5 modules (78.75 mm)
• Terminal capacity: 1.5 – 35 mm²
• Protection: IP20 (terminals), IP40 (installed)
• Operating temperature: -25 °C to +40 °C
• Electrical life: 10,000 cycles; mechanical life: 20,000 cycles
• Standards: IEC/EN 61008-1, VDE 0664-10

Why choose it

Type B RCCBs detect smooth DC residual currents as low as 30 mA, making them essential for circuits with frequency inverters, EV charging stations, or photovoltaic systems where standard AC-sensitive devices fail. Eaton’s robust engineering ensures reliable long-term operation even in demanding environments.

Ideal use cases

• Industrial machinery with variable speed drives
• Electric vehicle charging infrastructure
• Photovoltaic installations

Good to know

This RCCB is designed for DIN rail mounting and occupies 4.5 modules (78.75 mm). It is suitable for use in distribution boards and complies with international safety standards.