The adjustable trip Class 10/20 lets you tune the overload curve to the motor's acceleration profile: Class 10 for standard induction motors, Class 20 for longer ramp times. MTTFd of 31 a and MTBF of 11 a are reliability figures for the safety function — the 31 a MTTFd aligns with SIL 2 / PL d requirements per IEC 61508, so this starter can serve in a safety circuit guarding a hazard zone.
This reversing starter mounts by plugging onto a terminal module, not direct DIN-rail snap-on — the terminal module is the base that carries the power wiring, and the starter module clicks onto it. That means the panel layout needs space for the terminal module footprint first. Dimensions are 130 mm wide, 290 mm high, 150 mm deep. Mounting position is vertical or horizontal, giving flexibility in tight enclosures. The 24 V DC control supply has a rated range of 21.6 to 26.4 V DC, with absolute limits of 20.4 V minimum and 28.8 V maximum — stay inside those for reliable pick-up and dropout.
Shock resistance is 5 g for 11 ms, vibration resistance 2 g — adequate for most industrial machinery but not for high-shock applications like stamping presses without additional isolation. Pollution degree 3 at 400 V, degree 2 at 500 V per IEC 60664 / IEC 61131 — this matters for creepage and clearance distances in dirty or humid environments.