UNITED ELECTRIC F402-2BS TEMPERATURE AC CONTROLS -125-350 DEGREES ACC AC ET

Description:

The United Electric Controls F402-2BS 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 industrial ovens, heat exchangers, process heaters, thermal fluid systems, boilers, and manufacturing equipment requiring reliable temperature regulation and equipment protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing temperature sensing and control systems. The F402-2BS features an adjustable temperature range of -125°F to 350°F and is part of the rugged 400 Series electromechanical switch family.

Applications:

The United Electric Controls F402-2BS Temperature Switch is commonly used in process heating systems, chemical processing plants, food and beverage production equipment, power generation facilities, HVAC systems, and industrial automation installations. 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. The 400 Series is designed for alarm, safety shutdown, and critical equipment protection applications in demanding industrial environments. 

Technical Specifications:

• Brand: United Electric Controls
• Part Number: F402-2BS
• Product Type: Temperature Switch
• Series: 400 Series
• Switch Type: Electromechanical Temperature Switch
• Temperature Range: -125°F to 350°F
• Temperature Range Metric: -87°C to 177°C
• Function: Temperature Monitoring and Control
• Sensing Method: Remote Bulb and Capillary System
• Temperature Element: 304 Stainless Steel Remote Bulb
• Capillary Material: Stainless Steel
• Output Contacts: SPDT Snap-Action Switch
• Contact Rating: 15A @ 125/250/480 VAC
• Setpoint Adjustment: Internal Adjustable Setpoint
• Deadband: Fixed Differential
• Enclosure Type: NEMA 4X Weatherproof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Electrical Connection: 3/4 in. NPT Conduit Entry
• Approvals: UL, cUL, FM, CE
• Suitable for Heating and Cooling Applications
• Designed for Alarm and Shutdown Functions
• Compatible with Boilers, Heat Exchangers, Ovens, and Process Equipment
• Intended for OEM Equipment and Replacement Installations
• Engineered for Continuous-Duty Industrial Service
• Maximum Temperature Rating: 400°F

Common Replacements:

• United Electric Controls F402-3BS Temperature Switch
• United Electric Controls F402-4BS Temperature Switch
• United Electric Controls F120-2BS Explosion-Proof Temperature Switch