Fuji SC-N12 Coil DC100-120V AC100-127V 50/60Hz 2NO+2NC Magnetic
Contactor
1. Overview of the Fuji SC-N12
The Fuji SC-N12 is a high-current AC contactor designed for
heavy-duty operation, with a rated operating current of up to 400 A
and an AC-3 electrical lifespan exceeding 1.5 million cycles. Its
integrated IC super magnet and wide-voltage coil design ensures
stable engagement even when the grid voltage drops to 65% of the
rated value, eliminating the risk of coil burnout and contact
welding. A built-in surge absorber enables universal AC/DC power
supply, significantly reducing operating power consumption and
noise.
Modular accessories offer nearly unlimited expansion possibilities
for the SC-N12: front- or side-mounted auxiliary contact units, air
delay contacts, mechanical interlock components, and a standalone
thermal overload relay. These components enable flexible
configuration of reversing, star-delta, or interlocked starting
solutions, easily meeting the remote connection and disconnection
and frequent starting requirements of three-phase motors up to 110
kW. Compact DIN rail mounting structure, -5°C to +40°C wide
operating temperature range, and no derating at an altitude of 2000
m allow for plug-and-play installation during PDC upgrades or
on-site retrofits.
2. Core Features:
[Core Parameters]
• Model: SC-N12 (SC Series)
• Rated Operating Current: 400 A (AC-3, 380/400 V)
• Rated Operating Voltage: AC 220/230 V 50/60 Hz, AC 380/400 V
50/60 Hz, DC 110 V / DC 220 V Universal Coil Available
• Rated Insulation Voltage Ui: 690 V
• Rated Impulse Withstand Voltage Uimp: 6 kV
• Conventional Thermal Current Ith: 400 A (≤40°C)
• Rated Control Power Pe (AC-3): 110 kW (380/400 V)
• Electrical Life: ≥ 2 million operations (AC-3, 380/400 V)
• Mechanical Life: ≥ 10 million operations
• Operating Time: 43-49 ms for pull-in, 43-49 ms for release 41-47
ms
• Operating voltage range: 0.85-1.1 µs (closed), 0.2-0.75 µs
(released) (50/60 Hz)
• Coil power consumption: 280 VA (closed), 5 W (holding); DC
holding power consumption as low as 3.4 W
• Mounting: 35 mm DIN rail or screw base
• Dimensions: 172 × 156 × 360 mm (W × H × D)
• Weight: Approximately 9 kg
• Protection rating: IP20 (IP2X with terminal covers installed)
• Certifications: IEC / EN / VDE / UL / CSA / CCC / CE
[Main Features]
High current carrying capacity: Single-pole 400 A continuous
output, capable of directly controlling a 110 kW three-phase
asynchronous motor. Ultra-Wide Coil Voltage Range: This universal
AC/DC coil maintains reliable engagement even when voltage drops to
65% of the rated value, effectively preventing coil burnout or
contact welding caused by power grid fluctuations.
Built-in Surge Suppression: An integrated varistor and RC snubber
circuit suppress overvoltage during coil shutdown, protecting PLCs
and electronic components.
Dual Auxiliary Contacts: Standard configuration includes 2 NO and 2
NC (2A2B) gold-plated silver alloy auxiliary contacts with a
minimum conduction capacity of 5 V / 3 mA, compatible with PLC and
microprocessor signals.
Modular Expansion: Accessories such as front and side auxiliary
contact blocks, air delay contacts, mechanical interlocks, and
thermal relays can be added to easily implement complex control
systems such as reversing, star-delta, and interlocked starting.
Fast Response: Engagement time ≤ 49 ms, release time ≤ 47 ms,
suitable for high-frequency switching applications.
Low Power Consumption and Quiet: IC-controlled super electromagnet
(AC input / DC excitation) technology provides low operating noise,
minimal coil temperature rise, and significant energy savings.
[Typical Applications]
• Direct-on-line starting, reversible operation, and star-delta
step-down starting of high-power motors
• Inverter bypass and soft starter bypass
• Switching high-current loads such as heating equipment,
resistance furnaces, and electrolytic cells
• Industrial applications such as power distribution systems,
machine tools, lifting machinery, fans, and pumps
3. Product details pictures
4. Related products
| SC-03 | SC-04 |
| SC-05 | SC-4-0 |
| SC-4-1 | SC-5-1 |
| SC-N1 | SC-N2 |
| SC-N2S | SC-N3 |
| SC-N4 | SC-N5A |
| SC-N5 | SC-N6 |
| SC-N7 | SC-N8 |
| SC-N10 | SC-N11 |
| SC-N14 | SC-N16 |
