The ABB B7‑30‑10 is a compact 3‑pole miniature contactor (mini‑contactor) from ABB’s B7/B-series, intended for switching small to medium three‑phase loads such as small motors, resistive or inductive loads, and general three-phase circuits in panel, building, or light‑industrial installations. It features 3 normally‑open main contacts plus one built‑in auxiliary contact for control or signaling, making it suitable for load switching with optional auxiliary control logic. Thanks to its compact size, screw‑terminal connections, and versatile coil‑voltage variants (AC or DC depending on version), B7‑30‑10 is well suited for space‑constrained control panels, small motor starters, HVAC systems, pumps, or general-purpose switching applications where reliability and modest current rating suffice.
