Overview
The Square D 8536SCG3S is a NEMA Size 1 magnetic motor starter designed for full-voltage starting and stopping of AC squirrel-cage motors. With a maximum voltage rating of 600V AC and a 27-ampere full-load current rating, this non-reversing starter is rated for motors up to 10 HP. Built with Type S construction and melting-alloy thermal overload protection, the 8536SCG3S provides reliable motor control for industrial automation and machine tool applications.
Key Features
- NEMA Size 1 classification with 27-amp rating—standard industrial motor starter footprint
- 600V AC maximum voltage rating suitable for three-phase motor applications
- Melting-alloy thermal overload relay with Type B thermal units for motor overload protection
- 120V AC 60Hz control coil (standard configuration) for integrated control circuits
- 5 kA short-circuit current rating (SCCR) per UL508A when properly protected
- Fully enclosed Type 1 NEMA enclosure—painted steel construction for industrial environments
Technical Specifications
- 3-phase, 3-pole non-reversing configuration
- Voltage Rating: 600V AC maximum
- Full-Load Current: 27 amps
- Motor Rating: 10 HP @ 460–575V AC; 7.5 HP @ 200–230V AC
- Control Coil: 120V AC, 60 Hz
- Overload Relay: Melting-alloy type with Type B thermal units
- Short-Circuit Rating: 5 kA per UL508A
- Certifications: UL listed and CSA certified
- Enclosure Type: NEMA 1 general-purpose painted steel
- Dimensions: Approximately 12″ L × 8″ W × 7″ H
- Weight: ~8 lbs
- Condition: Used, fully functional
Typical Applications
The Square D 8536SCG3S is widely used in machine tools, pumps, fans, compressors, and conveyors where reliable AC motor control is essential. Its compact NEMA Size 1 form factor suits control panels with space constraints. The melting-alloy overload relay provides cost-effective motor protection, making it ideal for fixed-speed applications that do not require variable-frequency or soft-start control.
Compatibility & Replacements
Compatible With
- Three-phase AC squirrel-cage induction motors rated 460–600V AC
- Industrial control panels using 120V AC control circuits
- Standard UL508A-compliant motor control circuits
- OEM machine tool electrical systems designed for NEMA Size 1 starters
Replaces / Drop-In Replacement For
- Square D 8536SCO3 (Type SCO variant—verify coil voltage and thermal unit compatibility before substitution)
- Other Square D Class 8536 Series A Type S NEMA Size 1 starters with identical coil and control specifications
Works With
- Melting-alloy thermal overload relays with Type B and Type CC thermal units
- Standard NEMA push-button stations and selector switches
- 24V DC and 120V AC control relay circuits
- Inline and panel-mounted disconnect switches (NEMA-rated)
