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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.
