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Schneider Electric G20B3A125

MPNG20B3A125

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Circuit breaker, GoPact MCCB 200, 3 poles, 25kA at 415VAC, 125A, TMD trip unit, adjustable thermal protection, up to 50°C

$137.67Ref. price · indicative, final on quote

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

G20B3A125 — Ratings
Parameter	Value
Rated current (In)	125 A at 40 °C 125 A at 50 °C
Poles configuration	3P
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 category	Category A
Overvoltage category	III

G20B3A125 — Protection
Parameter	Value
Trip unit technology	Thermal-magnetic
Suitability for isolation	Yes conforming to EN/IEC 60947-2
Electrical durability (cycles)	8000 cycles at 415 V In
Mechanical durability (cycles)	30000 cycles

G20B3A125 — Mechanical
Parameter	Value
Mounting support	Backplate
Control type	Toggle

G20B3A125 — Environmental
Parameter	Value
Operating ambient temperature	-20...55 °C
Storage ambient temperature	-35...85 °C
IP degree of protection	IP20 conforming to IEC 60529
Pollution degree	3 conforming to IEC 60664-1

G20B3A125 — Approvals
Parameter	Value
Standards	EN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H

G20B3A125 — Electrical
Parameter	Value
[Icu] rated ultimate short-circuit breaking capacity	25 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 36 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
[Ics] rated service short-circuit breaking capacity	25 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 36 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2