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Schneider Electric G12F4A63 — Miniature Circuit Breakers (MCB)

Schneider Electric G12F4A63 GoPact MCCB 125, 63A, 30kA, 4P

MPNG12F4A63
Active

Schneider Electric GoPact MCCB 125, molded case circuit breaker, 4 poles, 63 A, 30 kA at 415 V AC, TM-D thermal-magnetic trip unit, screw terminals, IP20, grey RAL 7035.

$110.32Ref. price · indicative, final on quote
Schneider Electric G12F4A63 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

G12F4A63 — Identification
ParameterValue
Product nameGoPact MCCB 125
Product range (series)GoPact MCCB
Product/component typeCircuit breaker
Device applicationDistribution
G12F4A63 — Ratings
ParameterValue
Rated current (In)63 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
G12F4A63 — 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
G12F4A63 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
G12F4A63 — 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
G12F4A63 — Approvals
ParameterValue
StandardsEN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H
G12F4A63 — Electrical
ParameterValue
[Icu] rated ultimate short-circuit breaking capacity30 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
[Ics] rated service short-circuit breaking capacity15 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 25 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
G12F4A63 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.8...1 x In
Trip unit protection functionsLI

Product details

The Schneider Electric G12F4A63 is a GoPact MCCB 125 molded case circuit breaker with a 63 A rated current at 40 °C and a 30 kA breaking capacity at 415 V AC, 50/60 Hz.

What the key ratings mean for fit

The 30 kA breaking capacity at 415 V AC means it can safely interrupt a fault current up to 30,000 A without welding contacts or rupturing the arc chamber, which is the F performance level per IEC 60947-2. The 440 V rated insulation voltage (Ui) and 415 V rated operational voltage (Ue) confirm it is built for 400 V class three-phase systems common in European and Asian installations.

Fixed mounting on a backplate, with front-facing screw terminals for both line and load connections.

It is suitable for isolation per EN/IEC 60947-2, meaning it provides visible isolation when in the OFF position.

Frequently asked questions

What is the breaking capacity of G12F4A63?

The G12F4A63 has a 30 kA breaking capacity at 380/415 V AC (F performance level), tested to IEC 60947-2. This is the maximum fault current it can safely interrupt at that voltage.

What trip unit does G12F4A63 use?

It uses a TM-D thermal-magnetic trip unit with LI protection: thermal element for overload (L) and magnetic element for short-circuit (I). The trip unit rating is 63 A at 40 °C.

Where can I buy G12F4A63 and how is it quoted?

The G12F4A63 is sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at the time of quotation.

What compliance documentation does G12F4A63 carry?

The breaker 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 EN/IEC 60947-2. Pollution degree 3 and overvoltage category III per IEC 60664-1.

MPN
G12F4A63