Description
Mars 39026 Auto Limit Switch — Open Rise, 180–220°F
The Mars 39026 is an automatic-reset limit switch designed to protect heating equipment from overheating conditions. With an open-rise temperature range of 180–220°F, this limit switch monitors heat exchanger and plenum temperatures, opening the circuit when a high-temperature threshold is reached and automatically resetting once safe operating temperatures are restored.
Key Features
- Auto-reset operation — automatically resets when temperature returns to safe range
- Open-rise temperature range: 180–220°F
- Designed for use in gas and oil furnaces, air handlers, and other forced-air heating equipment
- Provides reliable overheat protection for heat exchangers and plenums
- Direct OEM replacement for compatible Mars applications
- Compact design for easy installation in tight equipment spaces
Applications
- Residential and light commercial gas furnaces
- Oil furnaces and forced-air heating systems
- Air handlers requiring high-limit temperature protection
- OEM and aftermarket replacement in compatible heating equipment
Product Specifications
- Brand: Mars
- Part Number: 39026
- Switch Type: Auto-Reset Limit Switch
- Temperature Range (Open Rise): 180–220°F
- Operation: Normally closed, opens on temperature rise
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