DOEPKE DFS4 063-4/0,03-B SK Residual Current Circuit Breaker 4-Pole 63A 30mA Type B Short-Time Delayed 9144988

Engineered for demanding electrical installations, the DOEPKE DFS4 063-4/0,03-B SK delivers 10 kA short-circuit capacity and Type B residual current protection, making it the definitive choice for circuits with three-phase loads, smooth DC fault currents, or high-frequency components. This 4-pole RCCB is rated at 63 A with a 30 mA trip sensitivity and short-time delayed (SK) tripping, ensuring both safety and selectivity in complex distribution boards.

Overview

The DFS4 series from DOEPKE represents the pinnacle of residual current protection. This particular model, 9144988, is a 4-pole RCCB designed for DIN rail mounting and occupies 4 modules (72 mm) of width. It operates at a rated voltage of 230/400 V AC and a frequency of 50/60 Hz, with an impressive surge current resistance of 3 kA. The neutral conductor is positioned on the right, and screw terminals accommodate conductors from 1.5 to 50 mm² (solid or stranded).

What stands out

• Type B residual current protection: detects AC, pulsating DC, and smooth DC residual currents, essential for modern equipment like EV chargers, PV inverters, and industrial drives.
• Short-time delayed (SK) tripping: provides selectivity by withstanding transient leakage currents, preventing nuisance tripping in systems with high inrush currents.
• High breaking capacity: rated short-circuit current of 10 kA ensures robust performance under fault conditions.
• Wide operating temperature range: from -25°C to +40°C, suitable for challenging environments.
• Compliance with EN 61008 and VDE 0664-10: guarantees adherence to stringent European safety standards.

Technical details

• Device type: Residual Current Circuit Breaker (RCCB)
• Number of poles: 4
• Rated current (In): 63 A
• Rated residual operating current (IΔn): 30 mA
• Residual current type: Type B
• Tripping characteristic: Short-time delayed (SK)
• Rated voltage (Un): 230/400 V AC
• Rated frequency: 50/60 Hz
• Rated short-circuit current (Inc): 10 kA
• Rated surge current resistance: 3 kA
• Mounting type: DIN rail (EN 60715)
• Module width: 4 modules (72 mm)
• Terminal type: Screw terminals
• Terminal capacity: 1.5 - 50 mm² (solid/stranded)
• Degree of protection (terminals): IP20
• Degree of protection (installed): IP40
• Operating temperature: -25 to +40 °C
• Neutral conductor position: Right
• Standards: EN 61008, VDE 0664-10

Our verdict

The DOEPKE DFS4 063-4/0,03-B SK is a top-tier RCCB for professionals who demand uncompromising safety and reliability. Its Type B sensitivity and short-time delayed tripping make it ideal for modern electrical systems with electronic loads, while its robust construction ensures long service life. If your application requires superior residual current protection, this device is a sound investment.