Features:

Immersion Type Controllers that Combine High Limit Protection with Low Limit and Circulator Control in Forced Hydronic Heating Systems, Including Domestic Hot Water Service
Immersion-Type Controllers that Combine High Limit Protection with Low Limit and Circulator Control in Forced Hydronic Heating Systems
Provide Multi-Zone Control by Using a Separate Circulator and R845 Relay for Each Zone
Include Diaphragm Power Head and Micro Switch Assembly that Respond to Temperature Changes in Boiler Water
Mount Directly to Boiler
Select Models Include Large Transformers and Extra Terminals for Supplying Power to Low Voltage Zone Valves
Require 24 Volt AC Thermostat with Heat Anticipator Set at 0.2 Amp

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: L8124E1016
Product Type: Hydronic Control Relay
Media Handled: Hot Water
Temperature Range: 130 to 240 Degrees F (High Limit)
Maximum Temperature Rating: 150 Degrees F (Switch), 265 Degrees F (Sensing Element)
Input Supply Rating: 120 VAC @ 60 Hertz
Pressure Rating: 200 PSI (Immersion Well)
Mounting Position: Vertical
Connection Type: Quick Connect/Screw
Humidity: 0% to 95% RH (Non-Condensing)
Differential Temperature: 10 Degrees F High Limit (Fixed), 10 to 25 Degrees F Adjustable (Low Limit)
Ambient Temperature: 150 Degrees F (Case)/265 Degrees F (Sensing Element)
Burner/Circulator Electrical Rating: 7.4 A @ 120 VAC/3.7 A @ 240 VAC Full Load, 44.4 A @ 120 VAC/22.2 A @ 240 VAC Locked Rotor
Insulation Depth: 3"
Humidity Range: 0% to 95% Relative, Non-Condensing
Dimensions: 5.15" x 5.2" x 7"
Weight: 4.55 lb.