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The WHP240-030 is a 40A Type B HP RCD for inverter-driven heat pumps, providing smooth DC residual-current protection in a compact two-module format where the heat-pump specification calls for it.
Heat-pump protection in a compact format
Inverter-driven equipment can produce smooth DC and high-frequency residual currents. Whitecliffe developed the WHP range for these conditions, with testing above 20kHz. It gives installers a dedicated heat-pump RCD option when planning a compatible protection assembly.
- Type B HP detection: covers smooth DC residual currents as well as the AC and pulsating DC waveforms associated with Type A protection.
- Two-pole, two-module design: helps you plan enclosure space around the RCD and the other required devices.
- 40A rated current and 30mA rated sensitivity: the key figures for matching the device to the project specification.
- Manufacturer documentation available: review the high-frequency characteristics in the Technical Specs tab and Whitecliffe Type B HP RCD datasheet (PDF).
Specifying the RCD? Match the residual-current requirements to the exact heat-pump model. This device provides residual-current protection; coordinated overload and short-circuit protection must also form part of the installation.
Separate RCD, combined RCBO or complete board?
Choose the format that fits the job. These options have different functions and are not interchangeable solely because they share a 40A rating.
| Product | Configuration | When to consider it |
|---|---|---|
| WHP240-030 — this product | 40A, 30mA Type B HP RCD; two modules | You need a separate heat-pump RCD in a compatible assembly with coordinated overcurrent protection. |
| WHR140B-030 heat-pump RCBO | 40A B curve, 30mA Type B HP RCBO; one module | You need residual-current and overcurrent protection combined, and the circuit specification calls for this rating and curve. |
| WME08/HP40C heat-pump board | Metal enclosure with heat-pump RCD, MCB and surge protection | You are specifying a dedicated heat-pump board. Review the fitted components and availability on its product page. |
For other configurations, browse heat-pump consumer units or the Type B RCD range.
Need a product or availability check? Contact Power & Data UK with the code WHP240-030, the heat-pump model, enclosure details and required delivery date. This gives the team the information needed to check the product against your requirements.
