SM1R Motor Protection Circuit Breaker Rotary Knob type by Lovato

Description

Lovato's SM1R series are modern circuit breakers with thermal and magnetic trip releases and high breaking capacity

• Motor control and protection of up to 22kW (400V) are possible by choosing the suitable adjustment range, 0.1 to 40A
• A magnetic trip indicator integrated on the SM1R... breakers avoids dangerous closing operations during short-circuit
  conditions, previously disconnected by the breaker
• SM1R... up to 32A breakers, with SM1X9000R or SM1X9050 accessory, are Type E-certified according to UL 60947-4-1; only for range from 6.5 to 32A the Type E version must be ordered with specific code SM1RE.... SM1R... motor protection circuit breakers combined with BG... and BF... contactors are Type F certified in compliance with UL 60947-4-1 standard
• SM1R motor protection circuit breakers are suitable for isolation in accordance with IEC/EN/BS 60947 standards and can be padlocked in OFF position without using accessories
• Their high breaking capacity consents to exclude protection fuses on the majority of the installations
• Operational characteristics
  • IEC rated insulation voltage Ui: 690V
  • IEC rated impulse withstand voltage: 6kV
  • IEC rated frequency: 50/60Hz
  • Maximum rated current: 40A
  • Adjustment ranges: 16
  • Heat dissipation per phase: 0.7...3.3W
  • Tripping class: 10A
  • Phase failure sensitive
  • Mechanical and electrical life: 100,000 cycles
  • Mounting on 35mm DIN rail (IEC/EN/BS 60715)
  • Mounting position: Any
  • IEC utilisation category: A
  • Padlocking in OFF: Ø4mm/0.16”
  • IEC degree of protection: IP20
• The following starters meet Type E requirements when sold with the phase barrier SM1X9000R