Overview
The Chromalox 35MO temperature controller is a compact, mechanical thermostat designed for reliable temperature and process control in HVAC, refrigeration, and light industrial heating applications. This used unit combines proven electromechanical switching with straightforward operation—no software configuration required. With a 20A current rating and dual voltage capability (120/230VAC), it offers flexible installation in North American electrical systems.
Key Features
- 20A resistive load rating at 120/230VAC dual voltage
- Mechanical thermostat design with manual setpoint adjustment
- 55°C temperature setpoint for precise control
- Direct contact switching—no relay or interface module needed
- Compact form factor suitable for HVAC enclosures and control panels
- Proven Chromalox reliability in industrial and commercial applications
Technical Specifications
- Model: 35MO
- Manufacturer: Chromalox
- Output Capacity: 20A resistive at 120/230VAC
- Temperature Setpoint: 55°C
- Input Voltage: 120/230VAC (dual voltage)
- Control Type: Mechanical thermostat (bulb and capillary or bimetal)
- Contact Configuration: SPDT (Single Pole, Double Throw)
- Mounting: Panel or DIN rail (verify with installation manual)
- Condition: Used, tested, fully functional
Typical Applications
- HVAC heating and cooling control in commercial and industrial buildings
- Refrigeration unit thermostat replacement
- Process heating systems requiring simple on/off temperature control
- Immersion heater or electric heating element control
- Machine tool coolant temperature maintenance
- Comfort heating in light industrial enclosures
Compatibility & Replacements
Compatible With
- Standard 120VAC or 230VAC single-phase electrical systems
- Resistive loads (heaters, heating elements, immersion heaters)
- HVAC blower motors and fan controls (within 20A limit)
- Refrigeration and heat pump control circuits
- Industrial process heating applications
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or controls engineer before ordering. The Chromalox 35MO is a mechanical thermostat; replacement compatibility depends on exact enclosure space, electrical rating, and control logic of the original unit.
Works With
- Direct electromechanical switching (no software or communication required)
- Standard industrial control circuits and panel designs
- Mechanical thermostats that require calibrated temperature setpoints
- Standalone temperature control without PLC or HMI integration
