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and gas valve sequencing
check for 120V at the valve terminals when the control board calls for heat
Gas-Tight Seal: Includes the essential high-temperature ignitor gasket to maintain combustion chamber integrity
providing superior protection over open-board alternatives
Key Benefits Multi-Stage Compatibility: Specifically engineered for 2-stage heating and 1-stage cooling heat pump systems
Siemens Industrial Controls 3RT2027-2AK60 Contactor 321142-301 and gas valve sequencingThe Siemens Sirius 3RT2027 2AK60 Contactor is a heavy duty industrial switching solution engineered for reliable 3 pole motor control in AC 3 applications. Operating with a 120V AC coil (60Hz), this Size S0 contactor is rated for a continuous operating current of 32A and can handle motor loads up to 15 kW at 400V. This unit features high integrity spring loaded terminals, providing vibration proof connections that are essential for high duty cycle