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Schneider Electric G12T4F125 — Miniature Circuit Breakers (MCB)

Schneider Electric G12T4F125 GoPact MCCB 125, 125 A, 10 kA,

MPNG12T4F125
Active

Schneider Electric GoPact MCCB 125, 4-pole, 125 A, thermal-magnetic TM-D trip unit, 10 kA at 415 V AC, IP20, EN/IEC 60947-2.

$125.67Ref. price · indicative, final on quote
Schneider Electric G12T4F125 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

G12T4F125 — Identification
ParameterValue
Product nameGoPact MCCB 125
Product range (series)GoPact MCCB
Product/component typeCircuit breaker
Device applicationDistribution
G12T4F125 — Ratings
ParameterValue
Rated current (In)125 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
G12T4F125 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)5000 cycles at 415 V In
Mechanical durability (cycles)30000 cycles
G12T4F125 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
G12T4F125 — 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
G12T4F125 — Approvals
ParameterValue
StandardsEN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H
G12T4F125 — 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
G12T4F125 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range1 x In
Trip unit protection functionsLI

Product details

The Schneider Electric G12T4F125 is a GoPact MCCB 125 molded-case circuit breaker with a 125 A TM-D thermal-magnetic trip unit, rated for 415 V AC 50/60 Hz distribution duty. The 4-pole (4D) configuration with neutral protection set at 1 x Ir covers three-phase-plus-neutral systems where the neutral is fully rated. Screw terminals front-connected top and bottom simplify panel wiring; the 25 mm connection pitch aligns with standard busbar spacing. IP20 finger-safe protection means it's intended for enclosed panel mounting — not for exposed outdoor or washdown locations. Backplate mounting, horizontal or vertical flat, gives layout flexibility in tight enclosures.

Frequently asked questions

Where can I buy G12T4F125 and how do I get a price?

The G12T4F125 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What are the key ratings of G12T4F125?

125 A rated current at 40 °C, 10 kA breaking capacity at 380/415 V AC (performance level T), 4-pole with TM-D thermal-magnetic trip unit, rated operational voltage 415 V AC 50/60 Hz.

What compliance documentation does this brand provide for G12T4F125?

The G12T4F125 complies with EN/IEC 60947-1, EN/IEC 60947-2, and EN/IEC 60947-2 Annex H for isolation suitability. It carries an IP20 protection rating per IEC 60529.

MPN
G12T4F125