United Electric Controls E121-13273 Temperature Switch

Description:

The United Electric Controls E121-13273 Temperature Switch is used in industrial process control systems to monitor temperature and provide automatic switching for equipment protection and process regulation. Commonly installed in heat tracing systems, boilers, compressors, turbines, HVAC equipment, chemical processing plants, and oil and gas facilities requiring an adjustable temperature range of 25°F to 325°F with a 480 VAC control circuit. Maintenance technicians, process engineers, and system integrators use this temperature switch for preventive maintenance, alarm functions, emergency shutdown, and replacement of OEM temperature control devices. The E121 Series is part of UE's explosion-proof 120 Series, designed for hazardous industrial environments.

Applications:

The United Electric Controls E121-13273 Temperature Switch is commonly used in heat tracing systems, freeze protection circuits, rotating equipment, boilers, combustion systems, chemical processing, petrochemical plants, refineries, and oil and gas production facilities. It is suitable for high-reliability temperature monitoring, process control, equipment protection, and safety shutdown applications in hazardous locations.

Technical Specifications:

• Brand: United Electric Controls (UE)
• Model: E121-13273
• Product Type: Temperature Switch
• Series: 120 Series (Explosion-Proof)
• Temperature Range: 25°F to 325°F (-4°C to 163°C)
• Switching Voltage: 480 VAC
• Electrical Rating: 22 A at 480 VAC
• Contact Type: SPDT Snap-Action Microswitch
• Adjustable Setpoint: Yes
• Sensor Type: Remote Bulb and Capillary
• Maximum Process Temperature: 360°F (182°C)
• Enclosure: Explosion-Proof, NEMA 4X / IP66
• Hazardous Area Certifications: cULus, ATEX, IECEx (model/option dependent)
• Application: Industrial Temperature Monitoring, Alarm, and Safety Shutdown

Common Replacements:

• United Electric Controls E121-5BS Temperature Switch
• United Electric Controls E121-4BS Temperature Switch
• United Electric Controls One Series Electronic Temperature Switch