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The WRT340C-030 is a 3-pole Type A RCBO providing combined residual current and overcurrent protection for three-phase circuits rated up to 40A. With a C curve tripping characteristic and 30mA sensitivity, it offers dependable protection against overload, short-circuit, and earth leakage faults in a compact 3-module DIN rail format.
Type A residual current protection enables detection of AC residual currents and pulsating DC components, making this RCBO suitable for modern installations containing electronic equipment. The C curve response allows for moderate inrush currents, typically associated with motors, pumps, HVAC equipment, and mixed-load commercial distribution boards.
Installer note: Switched neutral operation disconnects L1, L2, L3, and N together, improving isolation safety and reducing time spent during insulation resistance testing.
- 3-pole Type A RCBO with integrated overcurrent protection
- 40A rated current with C 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 |
|---|---|---|---|
| WRT340C-030 | 40A | C Curve | 30mA |
| WRT320C-030 | 20A | C Curve | 30mA |
| WRT332B-030 | 32A | B Curve | 30mA |
| WRT332C-030 | 32A | C Curve | 30mA |
| WRT340B-030 | 40A | B Curve | 30mA |
| WRT350C-030 | 50A | C Curve | 30mA |
The WRT340C-030 is well suited to three-phase circuits where Type A protection and tolerance for moderate inrush currents are required at higher operating currents.
