Coil voltage and switching duty
The 3RT1456-6NF36 carries a 96-127 V AC/DC coil — the same coil handles both supply types, which simplifies panel wiring when a mixed-voltage control bus is present. The pick-up and drop-out times are identical for AC and DC: 80-90 ms, so the contactor's response in a safety or sequence circuit is predictable regardless of the control supply.
Mounting is by screw fixing through a single 9 mm hole — not DIN-rail snap-on, so the panel backplate must be drilled for the fixing pattern.