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Schneider Electric G12T4F80 — Miniature Circuit Breakers (MCB)

Schneider G12T4F80 GoPact MCCB 125, 80 A, 10 kA, 4P

MPNG12T4F80
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Schneider Electric GoPact MCCB 125, G12T4F80, 4-pole thermal-magnetic circuit breaker, 80 A at 40 °C, 10 kA at 415 V AC, TM-D trip unit, screw terminals, IP20.

Schneider Electric G12T4F80 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

G12T4F80 — Identification
ParameterValue
Product nameGoPact MCCB 125
Product range (series)GoPact MCCB
Product/component typeCircuit breaker
Device applicationDistribution
G12T4F80 — Ratings
ParameterValue
Rated current (In)80 A at 40 °C
Poles configuration4P
Rated operational voltage (Ue)415 V AC 50/60 Hz conforming to EN/IEC 60947-2
Rated insulation voltage (Ui)440 V AC conforming to EN/IEC 60947-2
Rated impulse withstand voltage (Uimp)6 kV conforming to EN/IEC 60947-2
Utilisation categoryCategory A
Overvoltage categoryIII
G12T4F80 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)8000 cycles at 415 V In
Mechanical durability (cycles)30000 cycles
G12T4F80 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
G12T4F80 — Environmental
ParameterValue
Operating ambient temperature-20...55 °C
Storage ambient temperature-35...85 °C
IP degree of protectionIP20 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
G12T4F80 — Approvals
ParameterValue
StandardsEN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H
G12T4F80 — Electrical
ParameterValue
[Icu] rated ultimate short-circuit breaking capacity10 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
[Ics] rated service short-circuit breaking capacity10 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
G12T4F80 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range1 x In
Trip unit protection functionsLI

Product details

The 4 poles (4D) protect all three phases plus the neutral, with neutral protection set to 1 x Ir. Insulation voltage is 440 V AC, so it's fine on a 415 V system with some headroom. Overvoltage category III means it's rated for fixed-installation downstream of the main panel. Pollution degree 3 means it's built for conductive-dust environments — typical for a factory floor enclosure.

This breaker mounts fixed to a backplate — no DIN rail, so plan for screw-down mounting. It's 100 mm wide, 130 mm high, 60 mm deep. Both line and load connections are front-facing screw terminals, which keeps wiring accessible in a row. The toggle handle gives a positive on/off indication. Neutral is on the left. You can mount it horizontally or vertically flat on the back, which helps in tight cabinets.

Frequently asked questions

What is the 80 A rating at 40 °C mean for my panel?

The 80 A rating is the maximum continuous current at 40 °C ambient. If your panel ambient is higher, you must derate per the manufacturer's curve. The TM-D trip unit provides thermal overload (L) and magnetic short-circuit (I) protection.

What compliance documentation does this brand provide for G12T4F80?

The G12T4F80 is designed and tested to EN/IEC 60947-1, EN/IEC 60947-2, and EN/IEC 60947-2 Annex H. It is suitable for isolation per those standards. Specific RoHS/REACH/UL documentation is available on request at quote time.

MPN
G12T4F80