Hager - ADB406U - RCBO 1M 1P 10kA B‑Curve 6 A 30 mA Type A

Product Overview

The Hager ADB406U is a compact RCBO (Residual‑Current Circuit Breaker with Overcurrent Protection). It combines the functions of an MCB and an RCD in a single module. It is designed to provide reliable protection for electrical circuits against overloads, short circuits, and earth-leakage faults. The rated current is 6 A, with Type A residual current sensitivity of 30 mA. This makes it suitable for protecting smaller circuits that require the detection of both AC and pulsating DC leakage. The B‑curve tripping characteristic offers practical protection for circuits with lower inrush currents, such as lighting and socket outlets. It features a 10 kA short‑circuit breaking capacity, ensuring robust fault interruption in both domestic and commercial distribution systems. The device fits a single DIN-size modular slot. This allows for space‑saving installation on standard DIN rail systems. Its compact design and built‑in protections make it ideal for modern electrical safety and code‑compliant installations. It tightly integrates earth leakage and overcurrent protection.

Key Features

• Combined overcurrent and residual current protection in one module
• 30 mA Type A residual current sensitivity for AC and pulsating DC detection
• B‑curve tripping is suitable for lighting and socket circuits.
• Single‑pole, 1‑module compact DIN rail design
• 10 kA breaking capacity for robust short‑circuit interruption

Technical Specification

• Manufacturer: Hager
• Model reference: ADB406U
• Product type: RCBO (Residual‑Current Breaker with Overcurrent protection)
• Rated operational voltage (Ue): 230–240 V AC
• Rated current: 6 A
• Residual current type: Type A
• Rated residual operating current (IΔn): 30 mA
• Short‑circuit breaking capacity (Icn): 10 kA
• Tripping curve: B‑curve
• Number of poles: 1P
• Mounting: DIN rail compatible, 1 module width
• Ingress protection: IP20
• Power loss at In: ~2 W
• Operating frequency: 50–60 Hz
• Operating temperature: −25 °C to +40 °C
• Dimensions (H×W×D): 115 mm × 17.8 mm × 70 mm

Applications

The Hager ADB406U is ideal for protecting small branch circuits in domestic and commercial electrical installations. Typical uses include lighting circuits, small socket outlets, and general power circuits. It is especially suitable for applications that require combined overcurrent and earth-leakage protection in a compact DIN rail module. The device supports modern wiring safety standards.

Why Choose This Product

Choosing the Hager ADB406U ensures reliable, space‑efficient circuit protection. It meets both overcurrent and residual-leakage requirements in a single device. The Type A residual protection, B‑curve tripping, and 10 kA breaking capacity offer balanced safety for typical small circuits. The compact modular design and DIN rail fitting allow for easy integration into consumer units and distribution boards. This supports professional installation and compliance with electrical safety standards.