Hartland Controls CON-AUX300-1 AUX Switch R-410A this regulator is tapped for

this regulator is tapped for NPT vent bosses and can be paired with an 12A06 vent limiting orifice or 12A04 device for upright installations

Built with a normally closed (N

The 1/2-inch diameter shaft and 2-speed capability provide precise airflow control for systems requiring variable load management

field-proven accessory designed for the physical operation of 4-inch butterfly valves and dampers

Hartland Controls CON-AUX300-1 AUX Switch R-410A this regulator is tapped forThe Hartland Controls CON AUX300 1 is a high performance SPDT auxiliary switch engineered specifically for seamless integration with three phase contactors. Designed for heavy duty HVAC R applications, this contactor auxiliary contact provides critical status feedback and control interlocking for industrial and commercial systems. It features a single pole double throw (SPDT) configuration, allowing for flexible wiring of both normally open (NO) and