The Siemens 3RT7014-1AN22 is a size S00 contactor from the SIRIUS family, a 3-pole main current circuit device with three normally-open main contacts. The 6 kV rated surge voltage resistance provides adequate isolation for 400/480 V systems, provided the panel's overvoltage category is respected.
Dimensions are 45 mm wide, 57.5 mm high, and 72 mm deep — the S00 footprint fits standard 45 mm slot spacing on the rail.
Wiring and auxiliary considerations
The screw-type terminals accept 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²) finely stranded with core end processing. The contactor supports product extension auxiliary switches, so a side-mount block can be added without modifying the main circuit wiring. For short-circuit protection, type of coordination 2 requires a 20 A gL/gG NH 3NA fuse; type 1 requires 35 A.
