UNITED ELECTRIC CONTROLS E121-13443 TEMPERATURE SWITCH

Description:

The United Electric Controls E121-13443 Temperature Switch is used in industrial temperature monitoring and control systems to provide automatic electrical switching when preset temperature limits are reached. Commonly installed in oil and gas facilities, chemical processing plants, power generation systems, heat tracing installations, and hazardous industrial environments requiring reliable temperature monitoring and explosion-proof protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing temperature sensing and control systems. The E121-13443 is an explosion-proof remote-mount temperature switch with a temperature range of 25°F to 325°F.

Applications:

The United Electric Controls E121-13443 Temperature Switch is commonly used in process heaters, boilers, heat exchangers, storage tanks, combustion systems, heat tracing circuits, and industrial process equipment. The switch utilizes a remote bulb and capillary sensing assembly to detect temperature changes and actuate electrical contacts for alarms, shutdown functions, and automatic process control, helping maintain safe and efficient operation of critical equipment in hazardous locations. The E121 series is part of United Electric's explosion-proof 120 Series temperature controls designed for critical safety and shutdown applications. 

Technical Specifications:

• Brand: United Electric Controls
• Part Number: E121-13443
• Product Type: Temperature Switch
• Series: 120 Series
• Switch Type: Explosion-Proof Temperature Switch
• Temperature Range: 25°F to 325°F
• Temperature Range Metric: -3.9°C to 162.8°C
• Maximum Temperature: 375°F (190.6°C)
• Function: Temperature Monitoring and Control
• Sensing Method: Remote Bulb and Capillary System
• Temperature Element: Stainless Steel Temperature Sensor
• Wetted Material: 304 Stainless Steel
• Output Contacts: SPDT Snap-Action Switch
• Electrical Rating: 22A @ 480 VAC
• Setpoint Adjustment: External Dial Adjustment
• Enclosure Type: Explosion-Proof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Hazardous Area Rating: Suitable for Classified Industrial Locations
• Electrical Connection: Conduit Entry
• Suitable for Heating and Cooling Applications
• Designed for Alarm and Shutdown Functions
• Compatible with Boilers, Heat Exchangers, Tanks, and Process Equipment
• Intended for OEM Equipment and Replacement Installations
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls E121-13445 Temperature Switch
• United Electric Controls E122 Series Temperature Switch
• United Electric Controls F120-7BS Explosion-Proof Temperature Switch