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Schneider Electric 18815

MPN18815

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Miniature circuit-breaker, Acti9 NG125L, 4P, 40 A, C curve, 50 kA (IEC 60947-2)

$256.02Ref. price · indicative, final on quote

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

Specifications

18815 — Electrical
Parameter	Value
Network type (AC/DC)	AC DC
Rated current [In]	40 A at 40 °C
Rated operational voltage [Ue]	380...415 V AC 50/60 Hz 500 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz
Rated insulation voltage [Ui]	690 V AC 50/60 Hz conforming to EN/IEC 60947-2
Rated impulse withstand voltage [Uimp]	8 kV conforming to EN/IEC 60947-2
Network frequency	50/60 Hz
Poles description	4P
Magnetic tripping limit	8 x In +/- 20 %

18815 — Protection & Performance
Parameter	Value
Breaking capacity	100 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 40 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 15 kA Icu at 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 36 kA Icu at <= 500 V DC conforming to EN/IEC 60947-2
Rated service breaking capacity [Ics]	75 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 37.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 30 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 11.25 kA 75 % conforming to EN/IEC 60947-2 - 500 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 500 V DC
Trip unit technology	Thermal-magnetic
Earth-leakage protection	Separate block
Suitability for isolation	Yes conforming to IEC 60947-2
Utilisation category	Category A conforming to IEC 60947-2
Mechanical durability	20000 cycles
Electrical durability	10000 cycles
Local signalling	ON/OFF indication Trip indicator
Contact position indicator	Yes

18815 — Mechanical
Parameter	Value
Connections / terminals	Tunnel type terminals1.5...50 mm² rigid Tunnel type terminals1...35 mm² flexible
Device short name	NG125L
Control type	Manual tripping test Toggle
Mounting mode	Clip-on
Mounting support	35 mm symmetrical DIN rail
Usable 9 mm pitches	12
Width	108 mm
Height	103 mm
Depth	81 mm

18815 — Environmental
Parameter	Value
IP degree of protection	IP20 conforming to IEC 60529
IK degree of protection	IK05 conforming to EN/IEC 62262
Pollution degree	3 conforming to IEC 60947-2
Operating ambient air temperature	-30...70 °C
Storage ambient air temperature	-40...70 °C