Watlow 202-0-21-5 Bulb and Capillary Thermostat Control

Description:

The Watlow 202-0-21-5 Thermostat Control is a bulb and capillary temperature control device designed for reliable on/off regulation of industrial heating systems in non-critical process applications. Commonly installed in immersion heaters, process tanks, industrial ovens, and electric heating assemblies, this SPST thermostat features a preset operating range of 30°F to 250°F to maintain consistent process temperatures. Maintenance teams, OEMs, and system integrators use this thermostat for equipment replacement, preventive maintenance, retrofit projects, and dependable thermal control in industrial environments.

Applications:

The Watlow 202-0-21-5 Thermostat Control is widely used in immersion heating systems, water and oil tanks, process vessels, industrial ovens, packaging equipment, and general process heating applications requiring mechanical bulb-and-capillary temperature regulation and automatic heater cycling.

Technical Specifications:

• Brand: Watlow
• Part Number: 202-0-21-5
• Product Type: Bulb and Capillary Thermostat Control
• Control Type: SPST (Single-Pole Single-Throw)
• Temperature Range: 30°F to 250°F
• Sensing Method: Bulb and capillary
• Operation: Mechanical on/off temperature control
• Designed for non-critical process temperature regulation
• Compatible with industrial electric heating assemblies
• Suitable for remote or enclosure mounting
• Intended for immersion heaters and process heating equipment
• Engineered for continuous industrial operation

Common Replacements:

• Watlow 202-0-21-4 Bulb and Capillary Thermostat
• Watlow 202-0-21-6 Bulb and Capillary Thermostat
• Watlow 202-0-4-17 DPST Bulb and Capillary Thermostat