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The WRT332B-030 is a 3-pole Type A RCBO providing combined residual current and overcurrent protection for three-phase circuits. Rated at 32A with a B curve and 30mA sensitivity, it protects against overload, short-circuit, and earth leakage faults in a compact 3-module DIN rail format.

Type A residual current protection allows the device to detect AC residual currents and pulsating DC components, making it suitable for modern electrical installations with electronic loads. The B curve tripping characteristic is ideal for circuits with lower inrush currents, such as lighting circuits, control systems, and general-purpose three-phase loads.

Installer note: The switched neutral design disconnects L1, L2, L3, and N simultaneously, improving isolation safety and simplifying insulation resistance testing.

  • 3-pole Type A RCBO with integrated overcurrent protection
  • 32A rated current with B curve characteristic
  • 30mA residual current sensitivity
  • 10kA short-circuit breaking capacity
  • Switched neutral for full disconnection of live conductors
  • Compact 3-module DIN rail design
  • Clear IN / OUT / LOAD terminal markings
Part Code Rating Curve Residual Current
WRT332B-030 32A B Curve 30mA
WRT320C-030 20A C Curve 30mA
WRT332C-030 32A C Curve 30mA
WRT340B-030 40A B Curve 30mA
WRT340C-030 40A C Curve 30mA
WRT350C-030 50A C Curve 30mA

The WRT332B-030 is a strong choice for three-phase circuits where Type A protection and a B curve response are required to protect sensitive or low inrush loads.

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