The ABB A26N1R-10-84 is a NEMA Size 1 reversing starter — a three-pole contactor assembly with a 120 V coil, built for reversing three-phase motor direction in a single enclosure. The 'R' in the order code marks the reversing configuration; the '84' suffix indicates the 120 VAC coil voltage.
NEMA Size 1 defines the contactor's thermal and magnetic trip curve — it is rated for motor loads up to 27 A at 600 VAC (typical NEMA Size 1 envelope). The 120 V coil is standard for North American control circuits fed from a 120 V control transformer. The reversing pair mechanically interlock to prevent simultaneous closure; this is critical for any motor that must change direction without a separate reversing contactor stack.
Deployment Context
This reversing starter mounts in a NEMA enclosure — typically a motor control center bucket or a standalone panel. The 120 V coil integrates directly with a PLC 120 VAC output module or a control relay. For cold-storage or freezer applications, confirm the coil's ambient temperature rating; NEMA starters generally tolerate -20°C, but below that a space heater or sealed enclosure is needed to prevent condensation on the contacts.