Doepke DFS4 063-4/0.03-F Residual Current Circuit Breaker (RCCB), 63 A, 4-Pole, 30 mA, Type F 09144820

The Doepke DFS4 063-4/0.03-F is a 4-pole residual current circuit breaker (RCCB) engineered to deliver dependable protection against earth fault currents in demanding electrical installations. With a rated current of 63 A and a residual operating current of 30 mA, this Type F RCCB is particularly suited for circuits with frequency converters, single-phase frequency inverters, or other equipment generating mixed-frequency residual currents. Its robust design ensures reliable disconnection within milliseconds, safeguarding both personnel and equipment.

Advantages

Type F sensitivity provides enhanced protection for circuits with frequency converters and single-phase inverters, detecting residual currents up to 1000 Hz. The 4-pole configuration allows for comprehensive protection in three-phase systems with neutral. High short-circuit withstand capability (10 kA conditional) and surge current resistance (3 kA) ensure durability in industrial environments. Screw terminals accommodate conductors from 1.5 to 50 mm², simplifying installation. Compact DIN rail mounting saves space in distribution boards. Compliant with EN 61008-1 and VDE 0664-10, guaranteeing safety and quality.

Suitable for

• Three-phase circuits with non-linear loads such as frequency converters, UPS systems, and electronic ballasts
• Industrial and commercial distribution boards requiring reliable earth fault protection
• Installations with mixed-frequency residual currents where standard Type A RCCBs may fail to trip
• Protection of circuits supplying single-phase frequency inverters, medical equipment, or IT systems
• Retrofit and new installations in accordance with current wiring regulations

Key specifications

• Rated current (In): 63 A
• Rated residual current (IΔn): 30 mA
• Number of poles: 4
• RCD type: F (sensitive to AC and pulsating DC residual currents, plus high-frequency components)
• Rated voltage: 230/400 V AC
• Rated frequency: 50/60 Hz
• Conditional short-circuit current: 10 kA
• Rated switching capacity (IΔm): 1000 A
• Surge current withstand: 3 kA
• Mounting: DIN rail (EN 60715)
• Degree of protection: IP20 (terminals), IP40 (installed)
• Operating temperature: -25 °C to +40 °C
• Terminal capacity: 1.5 - 50 mm²
• Standards: EN 61008-1, VDE 0664-10

Recommendations

For optimal protection, pair this RCCB with suitable miniature circuit breakers (MCBs) from the Doepke range to achieve complete overcurrent and residual current protection. Verify that the upstream overcurrent protection device is rated appropriately for the 63 A load. Regular testing using the integrated test button is advised to ensure ongoing functionality.