United Electric Controls F54S-D21BC Temperature Switch 0-150F

Description:

The United Electric Controls F54S-D21BC Temperature Switch is used in hazardous-location process heating, HVAC systems, refrigeration equipment, and industrial equipment protection applications to monitor temperature and provide automatic electrical switching when preset temperature limits are reached. Commonly installed in refineries, chemical plants, oil and gas facilities, process vessels, and industrial control systems requiring reliable explosion-proof temperature monitoring. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing temperature control and safety systems.

Applications:

The United Electric Controls F54S-D21BC Temperature Switch is commonly used in heat tracing systems, refrigeration equipment, environmental chambers, process heating applications, storage tanks, utility systems, and industrial automation equipment. Its remote bulb sensing assembly and explosion-proof housing provide dependable temperature-actuated switching for alarms, shutdown functions, and process regulation in hazardous industrial environments.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: F54S-D21BC
• Product Type: Temperature Switch
• Series: 54 Series
• Switch Type: Explosion-Proof Temperature Switch
• Temperature Range: 0°F to 150°F
• Temperature Range Equivalent: -17.8°C to 65.6°C
• Function: Temperature Monitoring and Control
• Sensor Type: Remote Bulb and Capillary Assembly
• Sensing Element: Vapor Pressure Thermal System
• Bulb Material: Stainless Steel
• Capillary Type: Armored Stainless Steel Capillary
• Output Contacts: SPDT Snap-Action Switch
• Electrical Rating: 15A @ 125/250/480 VAC Resistive
• Setpoint Adjustment: External Adjustment Dial
• Enclosure Type: NEMA 4X Weatherproof / Explosion-Proof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Hazardous Location Rated
• Suitable for Heating and Cooling Applications
• Designed for Alarm and Shutdown Functions
• Intended for OEM Equipment and Replacement Installations
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls E55A-E21BC Temperature Switch
• United Electric Controls F120-7BS Temperature Switch
• United Electric Controls F402-2BS Temperature Switch