FUJI SC-N2S Magnetic Contactor: Complete Technical Guide and Industrial Applications

15 januari 2026

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What is the Fuji Electric SC-N2S magnetic contactor?

The SC-N2S is Fuji Electric's N2-frame magnetic contactor — a three-pole AC-3 contactor rated 50 A at 440 V / 22 kW on the IEC nameplate, with 80 A continuous thermal current, factory-fitted with the SC50BAA auxiliary contact block (2NO+2NC) and a 200-220 V 50 Hz / 220-240 V 60 Hz coil. This record is a lot of six factory-new units in the Fuji Electric FA boxes — coil 200-220V 50Hz / 220-240V 60Hz, Aux. 2a2b (2NO2NC), Fuji Electric FA, Japan on every box label. All twelve photos and the inspection video show these exact contactors.

3 min readContent reviewed 8 October 2026

Part details

SC-N2S with SC50BAA, as read from the nameplates and box labels
Field	Value
Brand	Fuji Electric FA — Made in Japan, date code 1678 on the body
Model	SC-N2S [50] magnetic contactor, three poles, with SC50BAA auxiliary block fitted
IEC rating	AC-3 per the nameplate table: 440 V / 22 kW / 50 A class (240 V, 550 V and 690 V lines printed); AC-1 Ith = 80 A; Ui 1000 V, Uimp 8 kV
US rating	Continuous current 80 A; HP table 110-120 V 3 HP through 550-600 V 40 HP; SCC ratings printed; Aux. Cont. A600/Q300; 75 °C wire Cu only, break all lines
Aux contacts	SC50BAA block — 2NO + 2NC (2a2b), terminals NO44/NC32/NC31/NO43 per the wiring marks
Coil	200–220 V 50 Hz / 220–240 V 60 Hz (A1/A2 terminals, coil marking on the body)
Standards	IEC/EN 60947, VDE 0660, GB 14048.4, NK 997403, JIS C 8201; UL Listed Ind. Cont. Eq.; CE, TÜV Rheinland, CCC, KTC; HU02040-1002
Quantity	6 contactors, factory-new in Fuji FA boxes, 1-year warranty as recorded (aftermarket-new supply per intake)

Scroll sideways to see the full table.

Values are read from the nameplates, the coil marking and the box labels in the photo set.

Where the SC-N2S earns its frame

The N2 frame is Fuji's workhorse contactor size for motor circuits in the 15-22 kW class — pumps, fans, compressors and conveyors that run continuously and switch several times an hour. The double-break contacts and the arc chute behind the black front handle the 50 A AC-3 load, the silver contact tips in the photos are factory-unworn, and the 80 A continuous rating means the contactor can carry an overloaded-but-not-tripped circuit without cooking its own coil. The fitted SC50BAA block is the part panel builders order separately elsewhere: two NO and two NC auxiliary contacts, wired off terminals 13/14 and 21/22/31/32/43/44, give the PLC its feedback — running, available, faulted — without a second order line.

The coil on these six is the 50/60 Hz dual-rated 200-240 V version, marked A1/A2 on the body — the standard Japanese-market control voltage that also covers 220-240 V 60 Hz panels directly. The six boxes carry the full factory labelling: Fuji Electric FA, Japan, the Aux. 2a2b note, the CE and RoHS marks and the individual QR trace codes — an aftermarket-new lot photographed box by box so every unit is verifiable before it goes into a panel.