What this coil does in the panel
The S-N125-COIL AC200V is the replacement coil for the Mitsubishi S-N125 contactor — the electromagnet that pulls the main contacts closed when 200V AC is applied to the coil terminals. Without this coil, the contactor is just a hunk of plastic and copper sitting on the DIN rail. It's listed as a replacement part, meaning it's the factory-specified service coil for the S-N125 contactor. If the original coil burned out or the contactor needs a different control voltage, this is the direct swap.
Sourced to order against RFQ through independent distribution.