WCED WHR140C-030 C Curve Heat Pump RCBO
40A Type B HP Heat Pump Circuit Protection
The WCED WHR140C-030 C Curve Heat Pump RCBO delivers 40A C Curve overcurrent protection with 30mA Type B HP residual-current detection and a 10kA breaking capacity. Higher-rated 40A C Curve protection for suitable heat pump installations. Its specialised residual-current response is suited to systems using inverter-driven compressors, where smooth DC and high-frequency leakage currents may occur.
Type B HP residual-current sensing for heat pump inverter electronics. The 18mm single-module construction offers a practical alternative to wider protection devices where compatible with the selected consumer unit and installation design.
Key Features – WCED WHR140C-030 C Curve Heat Pump RCBO
- 40A nominal current with C Curve overcurrent characteristic
- Type B HP residual-current detection including smooth DC fault currents
- 30mA residual-current sensitivity and 10kA breaking capacity
- Engineered for operation at frequencies up to 20kHz and tested above 20kHz
- Manufacturer-specified minimum 150mA trip threshold for frequencies above 1kHz
- 18mm single-module width; switched live and neutral (1P+N)
- Bi-directional; bottom supply connection; 35mm DIN rail mounting
Heat Pump and High-Frequency Performance
The WCED WHR140C-030 C Curve Heat Pump RCBO is engineered for heat pump systems with inverter electronics that can generate smooth DC residual currents and leakage at frequencies above those encountered in conventional circuits. WCED specifies high-frequency operation up to 20kHz, tested performance above 20kHz, and a minimum 150mA tripping threshold for frequencies greater than 1kHz. These features help limit unwanted operation from high-frequency leakage without replacing the need for correct circuit design.
The C Curve refers to the overcurrent trip characteristic; Type B HP refers to residual-current sensing. Confirm the chosen current rating, trip curve and device compatibility against the heat pump manufacturer’s instructions and BS 7671.
Technical Specifications – WCED WHR140C-030 C Curve Heat Pump RCBO
- Brand: WCED Whitecliffe Electrical
- Product code: WHR140C-030
- Current rating: 40A
- Trip curve: C
- Residual-current type: B HP
- Rated residual sensitivity: 30mA
- Rated breaking capacity: 10kA
- Rated voltage: 230V AC
- Rated frequency: 50/60Hz (extended high-frequency operation)
- Poles: 1P+N, switched live and neutral
- Module width: 18mm
- IP rating: IP20
- Terminal tightening torque: 2.5Nm
- Standards: BS EN 62423; BS EN 61009-1
Other Ratings and B Curve Alternative
Prefer a B Curve at the same 40A rating? See WCED WHR140B-030 40A B Curve Heat Pump RCBO. Other C Curve options: 20A C Curve (WHR120C-030), 25A C Curve (WHR125C-030), 32A C Curve (WHR132C-030).
Explore Heat Pump Circuit Protection
View the Heat Pump RCBO range, explore Heat Pump Circuit Protection, or browse Heat Pump Consumer Units.
