The White Rodgers 11B18-101 is a precision-engineered well immersion control designed for hydronic heating and boiler applications. It provides accurate temperature regulation with a broad range and flexible mounting options, making it ideal for both residential and commercial systems.This model features an SPST (Single Pole Single Throw) switch that opens on temperature rise, serving effectively as a high-limit control. Its adjustable differential allows tailored operation for a variety of system demands.Detailed Specifications:

• Temperature Range: 100°F to 240°F
• Differential: Adjustable from 5°F to 45°F
• Switch Action: SPST (contacts break on temperature rise)
• Electrical Ratings:
  • 14A @ 120 VAC
  • 7A @ 240 VAC
  • 1/2 HP @ 120 VAC
  • 1 HP @ 240 VAC
• Sensing Element: Fast-response bimetal element
• Capillary Length: 6 inches
• Immersion Well: 1/2" NPT, brass, standard shank included
• Mounting Orientation: Vertical or horizontal
• Dimensions:
  • Height: 5.375"
  • Width: 2-5/16"
  • Depth: 2-9/16"
• Enclosure Type: Open type (requires installation in suitable control panel or protected location)
• Agency Approvals: UL Listed

Applications:
Perfect for use in boilers, hydronic heating systems, storage tanks, and other installations requiring direct immersion temperature sensing with reliable open-on-rise operation.Available now at Beenimax—your dependable source for HVAC parts and controls.