Thermal Switch, Normally Closed, 225°C

The Thermal Switch is an automatically re-setting device designed for high-temperature sensing and control applications. Featuring snap-action bi-metallic SPST contacts, it offers reliable operation with a quick-connect terminal design for easy installation. The robust ceramic body ensures durability and effective insulation, while the contacts are normally closed and isolated from the mounting base for enhanced safety.

An indication of the switch temperature is clearly marked on the base of the unit, providing immediate reference during setup and troubleshooting. The auto-reset function allows the switch to return to its normal state once the temperature drops below the reset point, making it ideal for applications requiring continuous protection without manual intervention.

This component is engineered for sensing and instrumentation in environments where precise temperature monitoring is critical. Its flange mount housing facilitates secure attachment in a variety of configurations. Due to high market demand, lead times for this product may be extended and are subject to fluctuation.

Key Specifications

• Switching Temperature: 225°C
• Reset Temperature: 175°C
• Contact Operation: Normally Closed (NC)
• Contact Rating: 125VAC/15A, 250VAC/10A
• Sensor Terminals: Quick Connect
• Sensor Housing: Flange Mount
• Body Material: Ceramic
• Special Feature: Auto-reset function
• Special Feature: Temperature indication on base
• Dimensions: 33mm (H) x 22mm (W) x 2mm (D)
• Weight: 6 grams