ABB B7-30-10-84 3-Pole Mini Contactor 20A 120V/40-450Hz

The ABB B7-30-10-84 Mini Contactor is a compact electrical switching component that controls power flow to connected loads using an electrically operated contact system. It is rated for 20A switching capacity with a 120V coil input and operates across a 40-450Hz frequency range, enabling reliable control of multi-phase circuits. It engages and disengages three poles to manage electrical distribution to motors or auxiliary equipment. Within HVAC systems such as air handling units and packaged control assemblies, it is used to switch fan motors and compressor-related circuits installed in control panels. It supports coordinated load activation through low-voltage command signals.