The magnetic instantaneous trip is fixed at 1 235 A, which coordinates with downstream contactors and overload relays per IEC 60947-4-1.
The S3 frame occupies 70 mm width on the rail, with 174 mm depth and 165 mm height. Clearance requirements: 50 mm upward, 167 mm forward, 0 mm backward, 50 mm downward, 30 mm at the side. These clearances matter for heat dissipation — the breaker dissipates 38 W total typical at full load, so adjacent devices need breathing room. Screw-type box terminals on top and bottom accept up to 70 mm² solid or stranded, or 2/0 AWG. Tightening torque is 4 to 6 N·m. For a panel wireman, that means the main power conductors land without adapter lugs up to fairly heavy cable — common for a 100 A motor branch.
This is the part to put on the BOM for a 100 A motor branch in a SIRIUS starter combination.
Relative humidity during operation: 10 to 95 %. Installation altitude maximum 2 000 m above sea level. Shock resistance per IEC 60068-2-27: 25g for 11 ms. The RoHS substance prohibitance date is July 1, 2006, confirming compliance with the original RoHS directive.