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Schneider Electric G12F4A20 — Miniature Circuit Breakers (MCB)

Schneider Electric G12F4A20 GoPact MCCB 125, 20A 4P TM-D, 30

MPNG12F4A20
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Schneider Electric GoPact MCCB 125, 4P, 20 A, TM-D trip unit, 30 kA at 415 V AC, screw terminals, IP20, Grey (RAL 7035).

$108.98Ref. price · indicative, final on quote
Schneider Electric G12F4A20 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

G12F4A20 — Identification
ParameterValue
Product nameGoPact MCCB 125
Product range (series)GoPact MCCB
Product/component typeCircuit breaker
Device applicationDistribution
G12F4A20 — Ratings
ParameterValue
Rated current (In)20 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
G12F4A20 — 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
G12F4A20 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
G12F4A20 — 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
G12F4A20 — Approvals
ParameterValue
StandardsEN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H
G12F4A20 — 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
G12F4A20 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.8...1 x In
Trip unit protection functionsLI

Product details

The G12F4A20: Rated operational voltage is 415 V AC 50/60 Hz per EN/IEC 60947-2, with an insulation voltage of 440 V AC. The 4D protected-poles configuration means all four poles are protected, with neutral protection set at 1 x Ir. Suitability for isolation is confirmed per EN/IEC 60947-2, so you can use it as a visible-break disconnect in a distribution panel. Mounts fixed to a backplate, accepts horizontal or vertical orientation. Connection pitch is 25 mm, terminals are screw type, and both line and load connections are front-facing — clean for panel layout.

Durability and environment

Rated for 8000 electrical cycles at 415 V at rated current, and 30,000 mechanical cycles. That is typical for a distribution-grade MCCB — enough for a panel with occasional switching, not a daily motor-start duty.

Frequently asked questions

What is the breaking capacity of G12F4A20?

The G12F4A20 has a 30 kA breaking capacity at 380/415 V AC (F performance level).

Where can I buy G12F4A20?

The G12F4A20 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What standards does G12F4A20 comply with?

The G12F4A20 complies with EN/IEC 60947-1, EN/IEC 60947-2, and EN/IEC 60947-2 Annex H. It is suitable for isolation per those standards.

What is the trip unit type on G12F4A20?

The G12F4A20 uses a TM-D thermal-magnetic trip unit with LI protection — L for overload (thermal) and I for short-circuit (magnetic).

MPN
G12F4A20