What this reversing contactor is and where it fits
The Furnas A16N0R-10-84 is a NEMA Size 0 reversing contactor, 3-pole, rated 18 A at 600 V, with a 120 VAC / 60 Hz (110 VAC / 50 Hz) coil. The reversing pair is built into a single frame — two contactors mechanically interlocked so only one can close at a time, which is what you need for a motor that must run forward and reverse without a shoot-through. Includes one N.O. auxiliary contact for status feedback or seal-in.
What the 18 A rating means in practice
The 18 A continuous rating at 600 V sets the maximum motor full-load current this contactor can handle in a reversing application. For a 3-phase motor on 480 V, that roughly corresponds to a 10–15 HP motor depending on service factor and duty cycle. The NEMA Size 0 frame means the physical mounting hole pattern and terminal spacing match the standard NEMA starter footprint — it bolts into the same panel cutout as any other Size 0 reversing starter.
Panel integration notes
Mounts on a standard NEMA backplate or in an enclosure with the Size 0 footprint. The 120 VAC coil draws its control power from a separate control transformer or a 120 V control bus — verify the coil voltage matches your control circuit before wiring. The single N.O. auxiliary contact is wired to the control logic; if you need more auxiliary contacts for status or interlocking, add a side-mount auxiliary block compatible with the Furnas A16 series.