Allen-Bradley 100-A09NA3 4 Pole Magnetic Contactor

Allen-Bradley 100-A09NA3 is a 3-pole, non-reversing AC magnetic contactor from the Bulletin 100 family, designed to switch three‑phase loads with a maximum of 600 VAC across the main contacts and a per‑pole current rating of 9 A. The control coil is 220–240 VAC (50/60 Hz), enabling straightforward integration with standard control circuits, and the unit includes one normally open auxiliary contact for control interlocks or feedback. This model targets motor-control and general‑purpose switching in industrial panels, offering horsepower compatibility across common voltages: 2 HP at 200 V, 2 HP at 230 V, 5 HP at 460 V, and 7.5 HP at 575 V. Because it is a non-reversing contactor, it is intended for applications where rotation direction is fixed, aligning with typical Bulletin 100 motor-control configurations. Its 600 VAC maximum on the main contacts provides a broad safety margin for many industrial loads, while the 9 A per‑pole rating supports reliable starting and operation of moderate-sized motors. When selecting this contactor, verify that the coil voltage matches your control circuit and ensure appropriate protective hardware and wiring practices are applied for safe, effective motor starting and load switching.