VAT:
Electrical4less Logo

️Type B HP 40A RCD for Heat Pumps & Inverters

SKU: WHP240-030
Delivery usually within 1 - 3 working days *

The Type B HP 40A RCD safeguards inverter-driven heat pumps by detecting smooth DC and high-frequency residual currents. Its two-pole, two-module design suits standard busbars, ensuring installers achieve reliable protection, reduced nuisance tripping, and BS 7671 compliance in modern systems.

Quantity Discount (%) Price
2+ £99.71
3+ 3% £97.09
£ 104 .96 EX VAT
£ 125 .95 IN VAT
OR
SECURE PAYMENT
We use secure checkout for safe, encrypted payments.

Description

Whitecliffe WHP Type B HP 40A High-Performance RCD

Type B HP 40A RCD for Heat Pump & Inverter-Drive Protection

The ️Type B HP 40A RCD for Heat Pumps is engineered for modern heat pumps and inverter-driven systems. It detects smooth DC faults at any level and operates reliably at high frequencies, helping you stay aligned with BS 7671 requirements in demanding applications.

Installers choose this 40A heat pump RCD for nuisance-free protection on variable-speed compressors and drives. Its two-module, two-pole design saves space and fits a standard busbar, speeding up installs while maintaining robust residual current protection.

For projects where high-frequency residual currents are present, the WHP Type B HP 40A offers verified tripping performance above 20 kHz with a defined threshold above 1 kHz—ideal for today’s low-carbon heating systems.


✨ Key Features — ️Type B HP 40A RCD for Heat Pumps

  • Heat pump ready: Designed for inverter-driven systems and VSDs.
  • Smooth DC detection: Trips on continuous DC residual currents at any level.
  • High-frequency performance: Verified operation above 20 kHz; minimum tripping threshold 150 mA above 1 kHz.
  • Compact form factor: Two-pole, two-module width; suits standard busbars.
  • BS 7671 alignment: Meets protection needs in modern installations.
  • Rated current: 40A capacity for heat pump and inverter systems.

Technical Overview — Type B HP 40A RCD

  • Type: Type B High-Performance (HP) residual current device
  • Poles / Modules: 2P / 2-module; standard busbar compatible
  • Rated current: 40A
  • High-frequency response: Tested > 20 kHz; trips ≥ 150 mA above 1 kHz
  • Smooth DC faults: Detects and trips at all DC levels
  • Dimensions (H×W×D): 82 × 35 × 77 mm
  • Application guidance: Prefer over AC/A/F types for inverter heat pumps to avoid nuisance tripping

Included

  • 1 × Whitecliffe WHP Type B HP 40A RCD (2-pole, 2-module)

✅ Why Choose This Product?

Pick the Type B HP 40A RCD when your installation includes heat pumps or other inverter-based loads. Its verified high-frequency operation and smooth DC fault detection reduce nuisance trips and help deliver safe, reliable protection on today’s low-carbon systems.


About Whitecliffe

Whitecliffe develops protective devices tailored to modern electrification demands. The WHP Type B HP 40A RCD targets inverter-rich applications—such as heat pumps—where smooth DC and high-frequency residual currents are expected.


️ Guarantee & Compliance

This device is designed to meet the protection needs referenced by BS 7671 in contemporary installations. For product conformity information and certifications, please refer to the manufacturer’s documentation or contact your distributor.






Downloads

Delivery Information

This product will be ordered from one of ours suppliers. The usual dispatch time to you is displayed above. You will receive a notification if there are any delays once your order is placed.

© 2026 Electrical4less
We accept Visa We accept Mastercard We accept Maestro We accept PayPal We use Amazon Pay We use Apple Pay We use Google Pay