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The WER20C-030 is a 20A C Curve High Immunity Type A RCBO designed for EV chargers, motors, heat pumps, and inverter-fed systems. It provides combined overload, short-circuit, and 30mA residual current protection, while high immunity electronics reduce nuisance tripping from harmonics and transient voltages.
Featuring double pole disconnection and bi-directional wiring, this RCBO is fully compliant with the 18th Edition Wiring Regulations (Amendment 2) and suitable for both domestic and commercial installs.
Installer Tip: Choose the C Curve when circuits have higher inrush loads such as EV charge points or motors. For lighting or socket circuits with low inrush, use the B Curve version instead.
Key Features
- 20A C Curve Type A RCBO – 30mA residual protection, 10kA breaking capacity
- High immunity design – resists false trips in noisy electrical environments
- Double pole disconnection – cuts both live and neutral conductors
- Bi-directional wiring – line/load reversible
- Engineered for EV, solar, and heat pump systems
- Complies with BS EN 61009 & 18th Edition regs
Compare High Immunity RCBOs
| Model | Rating | Curve | Typical Use |
|---|---|---|---|
| WER06B-030 | 6A | B | Lighting and other low inrush final circuits |
| WER06C-030 | 6A | C | Low-rated circuits where higher inrush tolerance is preferred |
| WER16B-030 | 16A | B | General domestic final circuits with low inrush loads |
| WER16C-030 | 16A | C | Small motors and circuits with moderately higher inrush current |
| WER20B-030 | 20A | B | Domestic final circuits requiring a higher current rating |
| WER20C-030 (This Product) | 20A | C | Circuits with moderately higher inrush current |
| WER32B-030 | 32A | B | Ring finals and other standard appliance circuits |
| WER32C-030 | 32A | C | Higher demand circuits and loads with greater inrush current |
| WER40B-030 | 40A | B | Higher load circuits with lower inrush characteristics |
| WER40C-030 | 40A | C | Heavier-duty circuits with higher inrush conditions |
| WER63C-030 | 63A | C | Larger commercial or high-load applications |
