The Hager ALM4xxT Series 3P+N RCBO offers combined over‑current and earth leakage protection in a compact three‑phase plus neutral format — ideal for modern three‑phase installations requiring both fault‑current and residual‑current protection in one device. With a 6 kA breaking capacity and 30 mA trip sensitivity, this range is designed for commercial, industrial or larger residential switchboards where discrimination, space efficiency and full compliance are critical.

Key Features

• 3P+N RCBO Combination – Provides MCB and RCD protection in one unit
• 30mA Trip Sensitivity – Personal protection against electric shock and earth faults
• 6kA Breaking Capacity – Suitable for a wide range of switchboard environments
• Wide Current Range – Available in 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A models
• Type A RCD – Detects both AC and pulsating DC residual currents
• C Curve Trip Characteristic – Ideal for general lighting, power and motor protection
• 3 Module Width – Space-efficient DIN-rail installation
• AS/NZS 61009 Compliant – Meets Australian standards for RCBOs
• Compatible with Hager Busbar Systems – Fast and clean switchboard integration

Specifications (typical for 3P+N ALM4xxT series)

• Rated Voltage (Ue): 400 / 415 V AC (three‑phase circuits)
• Rated Impulse Withstand Voltage (Uimp): typically 6 kV or 10 kV depending on breaking capacity variant.
• Rated residual operating current (IΔn): 30 mA
• Breaking capacity (Icn): 6 kA standard
• Number of modules width: 3 modules wide (3M) in DIN‑mounted system.
• Tripping characteristic: C‑curve (standard)
• Range of rated currents: 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A
• Standards Compliance: AS/NZS 61009 (and relevant IEC/EN equivalents) for RCBO devices.

Applications

• Three‑phase commercial installations where combined over‑current and earth‑leakage protection is required (e.g., small industrial boards, apartment building distributors)
• Switchboards servicing workshops, plant rooms, or multi‑unit residential with 3‑phase supplies
• Circuits with mixed loads (motor, general power, lighting) where space‑efficient protection devices are preferred
• Upgrade or retrofit scenarios where board space is at a premium and modular protection devices simplify wiring

Whether you're upgrading a distribution board, specifying protection for three-phase loads, or ensuring AS/NZS 61009 compliance, the Hager ALM4xxT Series delivers smart protection in a sleek, compact form. Trusted by electricians and contractors across Australia, it’s the reliable choice for modern switchboard designs.