Hager 25A 30mA Type B RCCB 1P+N for Heat Pumps

Hager CDB525HP — 25A 30mA Type B 1P+N RCCB for Heat Pumps

The Hager CDB525HP is a high-performance 25A Type B RCCB designed specifically for heat pump installations requiring advanced residual current protection. Offering 30mA earth leakage sensitivity and compatibility with smooth DC residual currents, this device provides robust protection against electric shock and equipment damage — essential for modern inverter-driven heat pumps.

With a 10kA conditional short-circuit rating, wide operating temperature range and long mechanical endurance, the CDB525HP supports reliable operation in both domestic and commercial systems. Suitability for DIN rail mounting and aligned screw terminals also help installers complete tidy, efficient installations.

Heat Pump-Optimised Electrical Protection: This RCCB is engineered for heat pump systems that can generate mixed AC and DC fault currents. Type B detection provides full protection where standard Type AC or Type A devices are insufficient, ensuring safer operation of inverter-based heat pump technology.

Stable Performance in Challenging Installations: Rated for continuous operation from −25°C to +70°C, the CDB525HP remains reliable in plant rooms, external enclosures and unheated utility spaces. Its 10kA conditional short-circuit rating also supports demanding residential and small commercial applications.

Installer-Friendly DIN Rail Design: With aligned screw terminals, bi-connect bottom terminals and a 4-module width, the unit is fast and straightforward to install within standard consumer units or distribution boards. High dielectric strength and rugged build quality support long operational life.

Key Features of the Hager 25A 2 Pole Heat Pump RCD Include:

• Type B Residual Current Protection Suitable for Heat Pump Installations
• 30mA Earth Leakage Sensitivity Providing Enhanced Shock Protection
• 25A Rated Current Delivering Reliable Circuit Protection Performance
• 10kA Conditional Short-Circuit Rating Compliant with EN61008-1 Requirements
• Wide Operating Temperature Range of -25°C to +70°C for Harsh Environments
• Four-Module Width Allowing Easy Integration Into Consumer Units
• DIN Rail Compatibility for Fast, Standardised Installation
• Aligned Screw and Biconnect Terminals for Straightforward Cable Termination
• IP20 Ingress Protection for Enclosed Distribution Board Applications
• High Mechanical Durability with 20,000 Mechanical Operations
• Height: 85mm
• Width: 72mm
• Depth: 70mm

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