UNITED ELECTRIC CONTROLS F120-4BS TEMPERATURE SWITCH

Description:

The United Electric Controls F120-4BS Temperature Switch is used in hazardous-location process heating, refrigeration, HVAC, and industrial equipment protection applications to monitor temperature and provide automatic electrical switching at adjustable setpoints. Commonly installed in chemical plants, refineries, oil and gas facilities, heat tracing systems, and process equipment requiring reliable explosion-proof temperature control. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing temperature monitoring systems. The F120-4BS is part of the 120 Series explosion-proof temperature switch family.

Applications:

The United Electric Controls F120-4BS Temperature Switch is commonly used in heat tracing systems, refrigeration equipment, process vessels, heat exchangers, storage tanks, environmental control systems, and industrial utility equipment. Its explosion-proof construction makes it suitable for hazardous locations where dependable temperature-actuated control is required for alarm, shutdown, and process regulation functions. 

Technical Specifications:

• Brand: United Electric Controls
• Part Number: F120-4BS
• Product Type: Temperature Switch
• Series: 120 Series
• Switch Type: Explosion-Proof Temperature Switch
• Temperature Range: -40°F to +120°F Adjustable Set Point Range
• Maximum Temperature: 170°F
• Sensor Type: Remote Bulb and Capillary Assembly
• Bulb Material: 304 Stainless Steel
• Bulb Size: 3/8 in. OD × 6-3/4 in. Length
• Capillary Material: 304 Stainless Steel
• Output Contacts: Single SPDT Snap-Action Switch
• Electrical Rating: 15A @ 125/250/480 VAC Resistive
• Setpoint Adjustment: Internal Adjustment
• Enclosure Type: NEMA 4X Weatherproof / Explosion-Proof
• Hazardous Area Certifications: Class I, Division 1 & 2, Groups B, C & D
• Dual Conduit Openings
• Suitable for Heat Tracing and Process Temperature Monitoring
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls F120-2BS Temperature Switch
• United Electric Controls F120-6BS Temperature Switch
• United Electric Controls E121-4BS Temperature Switch