1NC Single Red PTM Series Thermostat
The PTM110 keeps your control panel's internal temperature in check, breaking the heating circuit via its normally-closed contact once the dial-set point is reached — a simple, no-electronics way to stop condensation building up inside the enclosure. It rides on standard DIN rail and handles 10A directly, so no separate contactor is needed for most panel heater loads.
Technical Details
Frequently Asked Questions
How does it prevent condensation in the panel?
It switches a heater circuit (via the N.C. contact) to keep the enclosure's internal temperature above the dew point, so moisture doesn't condense on components — a common fix for panels in unheated or outdoor cabinets subject to temperature swings.
How is the setpoint adjusted?
Via a simple rotary dial on the unit — no programming or digital interface needed.
Does the contact open or close when the target temperature is reached?
It's normally closed (N.C.) and opens at setpoint — this breaks the heating circuit once the panel has warmed to temperature, then closes again as it cools, cycling the heater automatically.
Can this switch the heater load directly, or do I need a contactor?
At up to 10A (230V AC), it can switch most panel heater loads directly. For larger heaters exceeding 10A, add a contactor between the thermostat and heater.
Industry Applications
- Outdoor & unheated control enclosures — condensation prevention where ambient temperature swings are significant
- Food & beverage / cold storage facilities — panel heating to protect electronics in chilled or refrigerated areas
- Water treatment & utility cabinets — moisture control in enclosures exposed to humid or variable conditions