It carries a 25 A rated operational current and delivers 25 A in AC-3 duty at 400 V, with a Trip Class 10 thermal release that matches standard motor start-up profiles — meaning it will hold through a normal start but trip before the winding overheats on a stalled rotor.
The S2 frame footprint is 55 mm wide, 140 mm tall, 149 mm deep — plan for that depth behind the panel door. Clearance requirements: 50 mm above and below, 30 mm to the side, 140 mm forward; zero clearance needed behind the rail. Screw-type box terminals on top and bottom accept up to 35 mm² solid or 25 mm² fine-stranded with ferrules; torque to 3–4.5 N·m.
Electrical Ratings and Environment
Rated for 690 V maximum (AC-3), 50/60 Hz, with a surge voltage resistance of 6 kV. Total typical power loss is 12 W. Relative humidity tolerance is 10 to 95 %. Shock resistance per IEC 60068-2-27 is 25 g for 11 ms. Maximum installation altitude is 2000 m above sea level. Maximum operating frequency in AC-3 duty is 15 operations per hour.