United Electric B54-103-9040 Temperature Control Unit 721T-61

Description:

The United Electric Controls B54-103-9040 Temperature Control Unit is used in industrial temperature monitoring and regulation systems to provide automatic electrical switching when preset temperature limits are reached. Commonly installed in boilers, heat exchangers, process heaters, storage tanks, and manufacturing equipment requiring dependable temperature control and equipment protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing temperature sensing and control systems.

Applications:

The United Electric Controls B54-103-9040 Temperature Control Unit is commonly used in process heating systems, chemical processing equipment, food and beverage production lines, utility services, HVAC systems, and industrial automation installations. The controller utilizes a remote bulb and capillary sensing assembly to monitor process temperatures and actuate electrical contacts for alarms, shutdown functions, and automatic temperature regulation, helping maintain safe and efficient operation of critical industrial equipment.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: B54-103-9040
• Alternate Reference: 721T-61
• Product Type: Temperature Control Unit
• Series: 54 Series
• Controller Type: Electromechanical Temperature Controller
• Function: Temperature Monitoring and Control
• Sensing Method: Remote Bulb and Capillary System
• Temperature Element: Fluid-Filled Bulb Sensor
• Output Contacts: SPDT Snap-Action Switch
• Electrical Rating: 15A @ 125/250/480 VAC
• Setpoint Adjustment: Internal Adjustable Setpoint
• Enclosure Type: Industrial-Duty Housing
• Housing Material: Die-Cast Metal Construction
• 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
• Suitable for Maintenance, Retrofit, and Repair Projects
• Engineered for Continuous-Duty Industrial Service
• Heavy-Duty Process Control Construction

Common Replacements:

• United Electric Controls E54-D22BS Temperature Controller
• United Electric Controls B121-120 Temperature Switch
• United Electric Controls B402-120 Temperature Switch