Ranco G4-4911 is a differential thermostat heating control switch.  This is a DPST type switch which controls two circuits at the same time when turning ON or OFF.  The thermostat control is between 10°C – 120°C, with 240 VAC or less and at 25 AMP maximum.  It is equipped with a 72” (6 foot) capillary and is excellent for heating type applications with a differential of ±15% scale range.   

The G4-4911 Differential Heating Control is designed to operate with contacts that open on temperature rise.  The thermostat temperature differential is the difference between the call for heat or temperature rise setpoint and the temperature the system shuts off.  This can apply to air heating, cooling, and liquid (water) applications.  Ranco G4 Series thermostat controls are easy to install and factory calibrated.