Hager RCBO Bidirectional 25A C Curve Type A 6kA ADC925R

Hager ADC925R — Bidirectional RCBO 1M 1P+N 6kA C25A 30mA Type A, single-module DIN rail protection for EV charging and modern electrical installations.

The Hager ADC925R is a 1-module, 1P+N Residual Current Breaker with Overcurrent protection (RCBO) rated at 25A with a 30mA Type A residual current sensitivity and a 6kA short-circuit breaking capacity. Its bidirectional design means it operates correctly whether current flows in the conventional direction or in reverse — making it the right choice for EV charger circuits, solar PV installations, and any application where back-feed current may be present. A single DIN rail module keeps your consumer unit or distribution board neat, saving space without compromising protection.

Installation & Compliance

The ADC925R combines overcurrent and residual current protection in a single 17.70mm-wide module, so there is no need for a separate MCB and RCD — saving installation time and board space. The biconnect bottom terminal accepts both flexible (1–10mm²) and solid conductors (1–16mm²), giving installers flexibility on cable choice without adapters. IP20 ingress protection and DIN rail mounting mean it slots straight into standard enclosures. Rated to IEC 60898-1 and RoHS compliant, it meets the compliance requirements expected on domestic and commercial installations alike.

Safety & Reliability

The Type A residual current detection covers both sinusoidal AC and pulsating DC fault currents — the correct specification for circuits supplying EV chargers, heat pumps, and inverter-driven equipment where pulsed DC leakage is possible. With a 6kA rated short-circuit breaking capacity and an impulse withstand voltage of 4000V, the ADC925R handles the fault energy levels found on typical UK single-phase supplies. An operating temperature range of -25°C to +70°C ensures consistent performance from unheated outbuildings to warm electrical cupboards, so the device protects reliably year-round regardless of installation environment.

Built for Modern Electrical Loads

Bidirectionality is the defining feature of the ADC925R — it trips correctly even when current flows back through the device, as it does in V2G (vehicle-to-grid) EV charger circuits and battery storage systems. The Curve C trip characteristic is optimised for loads with higher inrush currents, such as EV chargers and motor-driven equipment, reducing nuisance tripping on start-up while maintaining fast response to genuine faults. With 10,000 electrical and 20,000 mechanical operating cycles rated, this RCBO is built for long service life in active installations.

Key Features of the Hager ADC925R Bidirectional RCBO Include:

• Bidirectional Operation — Trips Correctly on Forward and Reverse Current Flow, Essential for EV Charger and V2G Circuits
• Combined RCBO in 1 Module — Overcurrent and Residual Current Protection in a Single 17.70mm DIN Rail Device, Saving Board Space
• Type A Residual Current Detection — Detects Both Sinusoidal AC and Pulsating DC Fault Currents for EV Charger and Inverter-Driven Load Compliance
• 6kA Short-Circuit Breaking Capacity — Rated to IEC 60898-1 for Reliable Fault Clearance on Standard UK Single-Phase Supplies
• Curve C Trip Characteristic — Handles High Inrush Loads Without Nuisance Tripping
• Biconnect Bottom Terminal — Accepts Flexible (1–10mm²) and Solid Conductors (1–16mm²) for Flexible Cable Selection
• Wide Operating Temperature Range — -25°C to +70°C, Suitable for Outbuildings, Garages, and Internal Installations
• Rated Current: 25A | Residual Current: 30mA | Rated Voltage: 230V AC
• Height: 85mm
• Width: 17.70mm
• Depth: 70mm
• IP20 Ingress Protection
• DIN Rail Mounting — 1 Module Width
• RoHS Compliant

View All RCBOs

View All Consumer Units

View All Circuit Protection

If you just need some help, would like to take advantage of our Price Promise or perhaps have a large order to place give our team of professionals a call on 0203 994 5470, drop us an email at sales@electricpoint.com or use our Contact Form.