Industrial ASR-90RA Variable Solid State Relay

Description:

The Variable Solid State Relay ASR-90RA is a 90A power controller with an integrated potentiometer designed for proportional control of AC resistive loads in industrial heating and power regulation applications. Commonly installed in electric heaters, ovens, heat sealers, plastic processing equipment, and industrial temperature control systems where smooth, adjustable power output is required. Maintenance technicians, OEMs, and system integrators use this solid state relay for equipment repairs, replacement of electromechanical relays, and upgrades to improve switching reliability and control accuracy.

Applications:

The ASR-90RA Variable Solid State Relay is designed to provide adjustable power control for AC loads using phase-angle control technology. It is commonly used in industrial ovens, electric heaters, drying equipment, heat sealing machines, and temperature control systems where operators can adjust output power through the built-in potentiometer. The solid state design offers silent operation, fast switching speeds, and extended service life compared to conventional electromechanical relays.

Technical Specifications:

• Manufacturer: Generic / Various Manufacturers
• Manufacturer Part Number (MPN): ASR-90RA
• Product Type: Variable Solid State Relay (SSR)
• Rated Current: 90 A
• Control Method: Integrated potentiometer adjustment
• Input Control: Manual variable resistance / potentiometer
• Load Type: Primarily resistive loads
• Output Type: AC switching
• Input Voltage: 80-250 VAC
• Output Voltage: 24-480 VAC
• Frequency: 50/60 Hz
• Isolation Method: Optical isolation
• Mounting Type: Panel mount
• Cooling Requirement: External heat sink required
• Protection Features: Overcurrent and overtemperature protection depending on installation
• Application: Power regulation and temperature control
• Compatible Equipment: Industrial heaters, ovens, heat sealers, and process equipment
• Operating Environment: Industrial indoor applications
• Designed for silent operation and long service life

Common Replacements:

• FOTEK TSR-90DA Solid State Relay
• Carlo Gavazzi RGC1A Series Power Controller
• Crydom PMP Series Solid State Relay