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The WRT350C-030 is a 3-pole Type A RCBO designed for higher-current three-phase circuits requiring combined residual current and overcurrent protection. Rated at 50A with a C curve tripping characteristic and 30mA sensitivity, it provides dependable protection against overload, short-circuit, and earth leakage faults in a compact 3-module DIN rail format.
Type A residual current protection allows detection of AC residual currents and pulsating DC components, making this RCBO suitable for modern installations with electronic equipment and inverter-driven loads. The C curve response supports moderate inrush currents, commonly associated with motors, plant equipment, HVAC systems, and higher-load commercial distribution boards.
Installer note: The switched neutral design disconnects L1, L2, L3, and N simultaneously, improving isolation safety and reducing time required for insulation resistance testing.
| Part Code | Rating | Curve | Residual Current |
|---|---|---|---|
| WRT350C-030 | 50A | 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 |
| WRT340C-030 | 40A | C Curve | 30mA |
The WRT350C-030 is ideal for three-phase circuits where Type A residual current protection and higher operating currents are required without sacrificing protection or isolation performance.