It also includes phase failure detection, which trips the motor on loss of one phase — preventing single-phasing damage.
Mounting and fit
Dimensions: 55 mm wide, 140 mm high, 149 mm deep. The 55 mm width is three standard modular units (3 x 18 mm) — plan your DIN rail fill accordingly. Any mounting position is allowed, so tight enclosures are fine. Terminals accept 2x (1…35 mm²) or 1x (1…50 mm²) solid or stranded wire. Main contact screws are M6. Clearance: 50 mm above, 50 mm below, 10 mm at the sides.