Overview
The Square D 8536SCG3S motor starter is a proven NEMA Size 1 magnetic control device designed for full-voltage starting and stopping of AC squirrel-cage motors in industrial automation applications. This unit combines reliable contactor technology with a protective MO558M enclosure cover to deliver robust motor control in demanding environments. Ideal for maintenance technicians and system integrators seeking drop-in replacement solutions.
Key Features
- NEMA Size 1 Classification: Compact footprint suitable for panel mounting and retrofit applications
- 27 Amp Rated Current: Full-voltage starting capability for motors up to 10 HP at common voltages
- 600 VAC Maximum Voltage: Compatible with single-phase and three-phase industrial power systems
- Nonreversing Operation: Direct start/stop control without directional changeover
- MO558M Protective Enclosure: Weatherproof cover protects coil and contacts from dust and moisture
- Screw-Clamp Terminals: Reliable wiring connections with field-proven durability
Technical Specifications
- Frame Size: Class 8536, NEMA Size 1
- Starter Type: SCG (nonreversing contactor)
- Coil Voltage: 120 VAC @ 60 Hz
- Operating Voltage Range: 600 VAC maximum
- Rated Current: 27 Amperes AC
- Horsepower Rating: 10 HP @ 200/230 VAC, 3-phase; 7.5 HP @ 240 VAC; ratings vary by voltage class
- Number of Poles: 3-phase
- Contact Configuration: 3 main power contacts, 1 NO auxiliary contact
- Enclosure Rating: NEMA 1 (general-purpose indoor)
- Terminal Connection Type: Screw-clamp
- Dimensions (H × W × D): 10.0 in. × 6.0 in. × 5.56 in.
- Shipping Weight: Approximately 7.24 lbs
- Series: A
- Standards Compliance: CSA Certified
Typical Applications
- Manufacturing equipment motor control systems
- Pump and compressor starting circuits
- Conveyor belt systems and material handling equipment
- HVAC unit motor control in commercial buildings
- Retrofit and replacement installations in industrial panels
- OEM machinery requiring compact NEMA 1 motor control
Compatibility & Replacements
Compatible With
- Square D Class 8536 replacement coils and contact kits
- NEMA-standard motor control panels and enclosures
- Standard industrial AC squirrel-cage motors, 3-phase
- MO558M protective enclosure covers and accessories
- Square D reversing and auxiliary contact blocks (where applicable)
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. The 8536SCG3S replaces earlier nonreversing starters in the Class 8536 family where motor specifications match (600 VAC, 10 HP @ rated voltage).
Works With
- Hardwired control circuits using push-button and selector switch interfaces
- Industrial PLC systems via discrete 24 VDC control inputs
- Standard motor overload relay protection (separate device)
- Square D and third-party thermal or magnetic overload relays
- NEMA-compliant wiring and conduit systems
