Hager ADM440T 40A 4 Pole (3P+N) RCBO 6kA C Curve 30mA Type A Safety Switch 230-415V AC 4 Module DIN Rail

Description

The 40A top of the Hager ADM three-phase range.

The ADM440T carries the highest current rating in Hager's 4 pole ADM RCBO series. It brings overcurrent and residual current protection together for three-phase circuits, sized for heavier final subcircuits that still need 30mA earth leakage protection at the device itself.

Key Features

• Current rating: 40A with C curve tripping
• Earth leakage: 30mA, Type A residual sensing
• Pole arrangement: 3P+N, all four poles protected
• Fault capacity: 6kA Icn and 6kA Ics to IEC 60898-1
• Voltage range: 230-415V AC at 50Hz
• Module width: 4 (71mm), 84mm high, 70mm deep
• Screw and biconnect terminals with 360° mounting
• IP2X enclosure rating, I²t class 3
• Endurance: 2,000 electrical cycles, 4,000 mechanical operations

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Choosing the 40A ADM440T

Protection roles in one unit
Hager describes this device as combining overcurrent and residual current protection for three-phase circuits. In practice that means one 4 module unit does the work of a 40A four pole breaker plus a 30mA safety switch. Hager rates the Type A residual element for enhanced shock protection and positions the device for residential and light commercial loads.

Headroom and heat at 40A
Higher-rated devices run warmer. The ADM440T dissipates 17.7W at its rated current, so allow for that heat when populating a full board. Ambient temperature also matters: the 40A rating holds at 30°C, easing to 37.7A at 40°C and 32.6A at 60°C. Two devices mounted side by side attract a 0.80 correction factor.

Wiring and mounting

• Terminals take 1-16mm² flexible or 1-25mm² solid conductors at 2Nm torque.
• Screw connection at the top, biconnect or bypass at the bottom, with 360° mounting positions.
• Insulation voltage 500V, impulse withstand 4kV, overvoltage category 3.
• Rated for use from -25 to 40°C and up to 2000m altitude, pollution degree 2.
• Install through a licensed electrician in accordance with AS/NZS 3000.

Q: What size circuit does the Hager ADM440T suit?
A: It is rated 40A with a C curve, making it the highest rated device in Hager's 4 pole ADM RCBO range, intended for three-phase circuits at 230-415V AC.

Q: Does the Hager ADM440T protect the neutral as well?
A: Its configuration is 3P+N with four protected poles, so the neutral is switched and protected along with the three phases.

Q: How much heat does the Hager ADM440T generate?
A: Hager lists power dissipation of 17.7W at rated current, higher than the lower-rated devices in the same range.