Overview
The Square D 8536-SA0-12 is a Class 8536 Type S NEMA Size 00 motor starter used for full-voltage starting and stopping of AC squirrel cage motors. This compact non-reversing starter provides dependable motor control for general industrial applications and is commonly found in HVAC systems, pump controls, and machinery automation. The used units available are fully functional surplus stock.
Key Features
- NEMA Size 00 compact form factor—fits tight control panels and enclosures
- Type S configuration with three main poles for robust motor switching
- Motor Logic overload relay protecting motors from sustained overcurrent conditions
- Adjustable overload relay range (3A to 9A) for application flexibility
- 100 kA SCCR (Short Circuit Current Rating) per UL508A
- Replaceable coils and components for easy field service
Technical Specifications
- Manufacturer: Square D (Schneider Electric)
- Class: 8536
- Type: SA0-12 (Type S)
- NEMA Size: 00
- Poles: 3 (three-phase)
- Motor Ratings (3-phase): 1½ HP @ 100/230/380 VAC; 2 HP @ 460/575 VAC; 2 HP @ 600 VAC
- Overload Relay: Motor Logic, adjustable 3–9 A
- Control Voltage: 110/120 VAC, 50/60 Hz (typical)
- Maximum Voltage: 600 VAC
- Dimensions: Approximately 6.81 × 3.50 × 4.22 inches
- Weight: Approximately 4 lbs
- Short Circuit Rating (SCCR): 100 kA @ UL508A
- Form: S (open-frame)
Typical Applications
- HVAC fan and compressor motor control
- Small pump and blower starters
- General industrial motor starting circuits
- Machinery automation and panel-mounted control systems
- Retrofit and replacement in existing installations
Compatibility & Replacements
Compatible With
- Standard three-phase AC squirrel cage motors (1–2 HP range)
- Class 8536 overload relay coils and thermal units
- Square D/Schneider Electric control circuits and enclosures
- Standard NEMA Size 00 mounting rails and panels
Replaces / Drop-In Replacement For
- Earlier Square D 8536 Type S models with identical pole configuration
- Other NEMA Size 00 starters where control voltage and motor ratings are compatible
- Verify specific replacement compatibility with your system integrator before ordering
Works With
- Square D Class 8502 auxiliary contact blocks
- Standard 24 VAC, 110 VAC, and 120 VAC control circuits
- Hard-wired relay logic and simple contactor control schemes
- Thermal overload relays with manual and automatic reset options
