Part identity and core ratings
The B7-30-01-03 is an ABB 3-pole contactor rated at 9.6 A with a 48 VAC coil. It includes one normally-open auxiliary contact (1 N/O). The 9.6 A rating is the continuous thermal current (Ith) — the current the main poles can carry continuously in free air. The 48 VAC coil places this contactor in the low-voltage control circuit range, common in older panel designs or retrofit applications where the control transformer steps down to 48 V. Verify coil pickup and dropout match your control supply — 48 VAC coils typically hold at 85% of nominal and drop out around 60%.
Deployment context
The 3-pole configuration suits switching three-phase loads — motors, heaters, lighting banks — up to the 9.6 A continuous limit. The single auxiliary contact provides a feedback or interlock signal to a PLC or control relay.
Sourcing posture
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