This 40 amp magnetic contactor operates on 208/240V coil voltage

efficient ignition and long-term heat exchanger integrity

Maintains critical system efficiency by ensuring proper drafting and heat exchanger pressure

featuring a 2-high stack configuration to manage multiple resistance coils

Key Benefits Integrated Blow-off Control: Includes a factory-mounted bronze ball valve for rapid screen flushing and simplified maintenance

Dwyer Instruments ASG Generator R-134A This 40 amp magnetic contactorThe Dwyer Instruments ASG Analog Signal Generator is a critical diagnostic tool for any HVACR contractor or building automation technician. This handheld, pocket sized device simplifies the troubleshooting of 0 10Vdc and 0 20mA circuits, providing a reliable source for calibrating transmitters, transducers, and actuators in the field. Built for efficiency, the ASG features an LED bar graph that gives you immediate visual confirmation of the signal