IEC Thermal Trip Class 10A for SM1, 10 for SM2 and SM3
Magnetic Trip Indicator
100,000/100,000 Cycle Electrical/Mechanical Life (SM1); 25,000/50,000 Cycle Electrical/Mechanical Life (SM2 and SM3)
DIN Rail Mounting
The SM1 is a modern series of circuit breakers with thermal and magnetic trip releases and high breaking capacity. The SM1 series provides motor control and protection up to 15kW at 400V/20HP 480V/30HP 600V by choosing a suitable adjustment range ‑ 0.1 to 32A. The SM2 and SM2 series provide motor control and protection up to 45kW at 400V/75HP 480V/100HP 600V by choosing a suitable adjustment range ‑ 28 to 100A. A magnetic trip indicator integrated on the SM1 breakers avoids dangerous closing operations during short‑circuit conditions. The SM1 types are suitable for isolation according to IEC/EN 60947 standards. Their high breaking capacity allows the exclusion of protection fuses on the majority of installations.