Motor Protection Circuit Breakers SM1R

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SM1R motor protection circuit breakers with
thermal and magnetic trip releases and high breaking
capacity.
Motor control and protection of up to 22kW (400V) is
possible by choosing the suitable adjustment range, from
0.1 to 40A.
The dimensions of SM1R… motor protection circuit breakers are compliant with the
DIN43880 standard, allowing them to be mounted in all
modular enclosures on the market.
A magnetic trip indicator integrated on the SM1R…
breakers avoids dangerous closing operations during short circuit
conditions, previously disconnected by the breaker.

Their high breaking capacity permits the elimination of
protection fuses on the majority of installations.

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SM1R Rotating Type

    Order            Code Thermal Trip Range (A) Short Circuit Breaking Capacity Icu (kA) Short Circuit Breaking Capacity Ics (kA)
SM1R 0016 0.1…0.16 100 100
SM1R 0025 0.16…0.25 100 100
SM1R 0040 0.25…0.4 100 100
SM1R 0063 0.4…0.63 100 100
SM1R 0100 0.63…1 100 100
SM1R 0160 1…1.6 100 100
SM1R 0250 1.6…2.5 100 100
SM1R 0400 2.5…4 100 100
SM1R 0650 4…6.5 100 100
SM1R 1000 6.3…10 100 100
SM1R 1400 9…14 100 100
SM1R 1800 13…18 100 100
SM1R 2300 17…23 50 25
SM1R 2500 20…25 50 25
SM1R 3200 24…32 50 25
SM1R 4000 30…40 20 25

Operational characteristics
– IEC rated insulation voltage Ui: 690V
– IEC rated impulse withstand voltage: 6kV
– Rated frequency: 50/60Hz
– Rated maximum current: 40A
– Adjustment ranges: 16
– IEC breaking capacity: up to 100kA
– Heat dissipation per phase: 0.7…3.3W
– Magnetic tripping: 13In max.
– Tripping class: 10A
– Phase failure sensitive
– Mechanical endurance: 100,000 cycles
– Electrical endurance: 100,000 cycles
– Mounting on 35mm DIN rail (IEC/EN 60715)
– Mounting position: any
– IEC utilisation category: A
– Padlocking in OFF: Ø4mm/0.16”
– Protection rating: IP20.