Description
The Mars 33420 is a refrigeration thermostat engineered to deliver dependable temperature switching in commercial and light-commercial refrigeration applications. With a fixed open setpoint of 35°F and a close setpoint of 55°F, this thermostat provides consistent, automatic control to help maintain safe product temperatures and protect refrigeration equipment from temperature extremes.
Key Features
- Opens at 35°F — prevents over-cooling and protects stored product
- Closes at 55°F — restores cooling operation when temperature rises above setpoint
- Designed specifically for refrigeration system temperature control
- Compact, durable construction suited for demanding refrigeration environments
- Direct replacement for compatible Mars refrigeration thermostat applications
Typical Applications
- Walk-in coolers and reach-in refrigerators
- Commercial refrigeration cabinets
- Light-commercial refrigeration units
- OEM refrigeration equipment replacement
Why Choose the Mars 33420?
Mars has a long-standing reputation in the HVAC/R industry for producing reliable electrical and control components. The 33420 refrigeration thermostat offers a straightforward, proven solution for maintaining target temperature ranges in refrigeration systems. Its fixed open/close setpoints eliminate guesswork during installation and ensure consistent performance over the life of the equipment.
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