Overview
The Fuji Electric SC-03 magnetic contactor is a reliable switching device engineered for industrial motor control and automation applications. As part of Fuji’s SC series, the SC-03 combines long service life, high switching efficiency, and a compact form factor suitable for panel-mount installations. Rated at 20A thermal current, it handles both 1-phase and 3-phase motor circuits across IEC and NEMA standards.
Key Features
- Compact smallframe design with easy panel integration
- Snap-on modular system for auxiliary contact blocks and coil surge suppressors
- Rated for 1800 ON/OFF cycles per hour
- Field-modifiable construction—no terminal screw removal required
- Low inrush power consumption (95 VA inrush, 9 VA sealed)
- Compatible with 24 V coil voltage (50 Hz and 60 Hz operation)
Technical Specifications
- Thermal Current: 20 A
- Coil Operating Voltage: 24 V AC (50 Hz), 24–26 V AC (60 Hz)
- Coil Power Consumption: 95 VA (inrush), 9 VA (sealed)
- Contact Duty Rating: Up to 600 VAC (standard variants)
- Operating Frequency: 1800 cycles/hour
- Motor Capacity: Up to 2.5 kW at 200V (depending on variant)
- Contact Configuration: Available in single and dual NO/NC arrangements
- Standards: UL, CSA, TÃœV, CCC certified
- Arc Extinguishing: High breaking efficiency mechanism included
Typical Applications
- Small-to-medium motor starting and control (up to 5 HP at 200–600 VAC)
- Reversing motor circuits with dual-contactor control
- Industrial automation and machinery protection
- HVAC and pump motor control systems
- General-purpose power distribution and motor branch circuits
Compatibility & Replacements
Compatible With
- Three-phase and single-phase AC motor systems
- Thermal overload relays (Type TR-ON/3 standard pairing)
- Fuji Electric auxiliary contact blocks and surge suppressors
- Standard DIN rail and panel mounting
- IEC 947 / NEMA AC1 classified electrical systems
Replaces / Drop-In Replacement For
- Older Fuji SC-03 variants with different coil ratings
- Verify compatibility with your system integrator before ordering, as SC-03 models exist with varying voltage ratings and contact configurations.
Works With
- Fuji Electric thermal overload relays (TR-ON, TK-E series)
- IEC 947 starter and contactor systems
- AC/DC control circuits (coil voltage specific)
- Modular auxiliary contact and surge suppressor accessories
