Overview
The Square D 8538SBG12V84CFF4H20P1T is a Class 8538 Type S combination motor controller rated at 30 amps. This combination starter combines the requirements of motor overload and short circuit protection into one package. Class 8538 combination starters are designed to operate at 600 Vac maximum, 50 to 60 Hz. This unit integrates a disconnect switch, magnetic contactor, and overload relay in a single enclosure for streamlined motor control.
Key Features
- Integrated Motor Protection: Combines motor overload and short circuit protection into one package for simplified installation and maintenance.
- Full-Voltage Starting: Magnetic starters are used for full-voltage starting and stopping of AC squirrel cage motors, ideal for general-purpose industrial motor applications.
- NEMA Compliance: Manufactured in accordance with NEMA standards and UL Listed.
- Standard Overload Relays: Comes standard with melting alloy overload relays; bimetallic and solid-state overload relays are available as options.
- Auxiliary Contact Options: Additional auxiliary contacts can be added to Type S starters for expanded control logic.
- Straightforward Wiring: Straight-through wiring and space for a fused control transformer with additional capacity simplify panel integration.
Technical Specifications
Verify detailed electrical ratings with your system integrator or the manufacturer for complete compliance with your application requirements.
Typical Applications
- General-purpose AC motor starting and stopping (squirrel cage motors)
- Machine tool motor controls
- Pump and fan motor control
- Industrial HVAC systems
- Production line machinery motor circuits
- Plant maintenance and retrofit applications
Compatibility & Replacements
Compatible With
- Square D combination starter fuse clips and auxiliary contact kits
- Standard AC squirrel cage motors, 3-phase and single-phase (voltage rated)
- Class R and Class H fuses (via interchangeable clips)
- Control transformers and interlocking devices
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Specific replacement models vary by coil voltage, form designation, and enclosure configuration.
Works With
- Square D motor control accessories and field modification kits
- Standard industrial electrical panels and motor control centers
- NEMA-rated enclosures (Types 1, 3R, 4, 4X, 12)
- Disconnect switch and circuit breaker interlocks
