Doepke DRCBO 4 C32/0.03/3N-B SK RCBO, 32 A, 30 mA, Type-B, tetrapolar (3P+N), curva C, 10 kA 9948127

Electrical installations face a dual threat: overloads that can overheat wiring, and residual currents that signal dangerous earth faults. The Doepke DRCBO 4 C32/0.03/3N-B SK combines both protections in a single, compact 4-module device, ensuring comprehensive safety for three-phase circuits with neutral.

Who is it for

This RCBO is ideal for electricians and panel builders working on commercial or industrial installations where space is limited and reliable protection against both overcurrent and residual current is mandatory. It suits circuits supplying motors, HVAC equipment, or other loads with potential DC residual currents, thanks to its Type B sensitivity.

Main features

• Combined residual current protection (30 mA, Type B) and overcurrent protection (C-curve, 32 A) in one unit.
• 4-pole (3P+N) switching for complete isolation of three-phase circuits.
• High breaking capacity of 10 kA for robust short-circuit handling.
• Sensitive to AC, pulsating DC, and smooth DC residual currents, making it suitable for modern electronic loads.
• Compact 4-module width saves space on DIN rail.
• Screw terminals accept conductors from 1.5 to 25 mm², ensuring secure connections.

Specifications

• Rated current (In): 32 A
• Rated residual operating current (IΔn): 30 mA
• Residual current type: B (AC, pulsating DC, smooth DC)
• Tripping characteristic: C (5–10 x In)
• Number of poles: 4 (3P+N)
• Rated voltage: 230/400 V AC
• Rated frequency: 50/60 Hz
• Rated breaking capacity (Icn): 10 kA
• Surge current withstand: 3 kA (8/20 µs)
• Energy limitation class: 3
• Mounting: DIN rail
• Module width: 4 TE
• Degree of protection: IP20
• Operating temperature: -25 °C to +40 °C
• Standards: EN 61009-1, VDE

Tips

Always verify that the upstream overcurrent protection is coordinated with the RCBO's breaking capacity. For installations with high inrush currents, consider the C-curve's tolerance to avoid nuisance tripping. Ensure the neutral conductor is correctly identified and connected to the N pole to maintain proper residual current detection.