The 4-pole configuration means this contactor switches three phases plus a neutral or an auxiliary pole — common for three-phase motor circuits where the neutral needs to be switched, or for dual-voltage loads. The 110/50 110-120/60 VAC coil rating covers both 50 Hz and 60 Hz supplies at the standard control voltage range, so it drops into panels wired for 110 VAC control transformers without a coil change.
Deployment Context
The 4-pole contactor footprint matches the common panel layout for motor starters and lighting contactor banks. Verify the coil suppression method against the existing PLC output card — an RC snubber or free-wheel diode may be needed depending on the driver type.