Hager HMF180T Miniature Circuit Breaker MCB 80A 1 Pole C Curve 10kA 1.5 Module DIN Rail

Description

80A sub-main protection on DIN rail.

The Hager HMF180T is an 80A single-pole high-current miniature circuit breaker (MCB) with a C tripping curve and 10kA breaking capacity, protecting sub-mains and heavy distribution circuits from a compact 1.5-module DIN rail body.

Key Features

• Rated current: 80A, single pole (1P)
• C tripping curve (5–10x In)
• 10kA breaking capacity (Icn) to IEC 60898-1
• Rated voltage 230–415V AC, insulation voltage 500V
• Compact 1.5-module width (27mm) DIN rail mount
• High-capacity terminals: rigid to 70mm², flexible to 50mm²
• Rated impulse withstand voltage 6000V; IP20
• Compliant with AS/NZS 60898.1 and AS/NZS IEC 60947-2

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Why it Matters

High-current protection in a modular package.
The HMF180T is an 80A miniature circuit breaker from Hager's high-current HMF range, protecting a circuit against both overload and short circuit and tripping automatically when either occurs. At 80A it is built for sub-mains and heavy general-distribution loads – feeding sub-boards, large machinery circuits and high-demand feeds – that sit above the standard 6A to 63A MCBs, while still mounting on standard DIN rail rather than requiring a moulded-case breaker.

C curve and genuine cable capacity.
The C tripping characteristic trips on short circuit at 5 to 10 times rated current, the general-purpose curve for mixed resistive and inductive loads. Backed by a 10kA short-circuit breaking capacity to IEC 60898-1 (with a 75% Ics service breaking capacity to IEC 60947-2), its high-capacity terminals accept rigid conductors up to 70mm² and flexible up to 50mm² at a 3.5 to 5.0Nm torque – matching the heavy cable an 80A feed runs.

Built for Australian switchboards.
At 1.5 modules (27mm) wide, 90mm high and 70mm deep, the HMF180T mounts on standard 35mm DIN rail with 360° mounting flexibility. It is compliant with AS/NZS 60898.1 and AS/NZS IEC 60947-2, rated IP20, and operates from -25°C to 70°C to suit main and sub-distribution boards across Australian conditions. With 6.18W dissipation at full load, an LZ060 heat dissipation insert is worth fitting where devices are packed tightly; MZN130 terminal cover, MZN175 locking kit and MZ auxiliaries are also available.

Q: What is the Hager HMF180T used for?
It is an 80A single-pole high-current MCB for protecting sub-mains and heavy distribution circuits against overload and short circuit, on standard DIN rail.

Q: What cable can the HMF180T terminals take?
Rigid conductors up to 70mm² and flexible up to 50mm², tightened to between 3.5 and 5.0Nm – sized for an 80A sub-main.

Q: What does the 10kA rating mean on the HMF180T?
10kA is the rated short-circuit breaking capacity (Icn) to IEC 60898-1 – the maximum fault current the breaker can safely interrupt – with a 75% service breaking capacity (Ics) to IEC 60947-2.