lovato sm1r1000 sm1 rotary control motor circuit breaker 6.3 - 10 amp

Why Choose the SM1R1000?

Protect motors with confidence using the Lovato SM1R1000 motor protection circuit breaker. Delivering 100 kA Icu at 400 V and a 6.3…10 A thermal trip range, this 3‑pole unit integrates magnetic and thermal protection with a clear rotary knob for fast setting. Rated Ui 690 V and Uimp 6 kV, it suits panels demanding compact, dependable overload and short‑circuit protection.

Built on the SM1R platform, it offers 100,000 mechanical cycles and reliable operation from −20 to +60 °C up to 3,000 m altitude. Conformity to IEC/EN 60947-1, 60947-2 and 60947-4-1, plus UL508 and CSA C22.2 No. 14, supports global panel standards. A lightweight 390 g design with 2.5–3 Nm terminal torque streamlines installation and ongoing maintenance.

Key Benefits

• High 100 kA Icu at 400 V for strong short-circuit protection.
• Adjustable thermal trip 6.3…10 A to match motor ratings.
• Magnetic and thermal protection in a single, compact 3‑pole unit.
• Rotary knob control for quick, accurate set-up and resetting.
• Rated Ui 690 V and 6 kV impulse withstand for robust insulation.
• Proven endurance with 100,000 mechanical operating cycles.
• Wide operating range −20 to +60 °C, up to 3,000 m.

Technical Specification

• Product type designation: SM1R
• Number of poles: 3
• Rated insulation voltage Ui (IEC/EN): 690 V
• Rated impulse withstand voltage Uimp: 6 kV
• Mechanical life: 100000 cycles
• Terminal tightening torque: 2.5 to 3 Nm
• Operating temperature: -20 to +60 °C
• Storage temperature: -50 to +80 °C
• Max altitude: 3000 m
• Weight: 390 g

What’s Included

• SM1R1000 motor protection circuit breaker
• Installation and safety leaflet
• Protective packaging

Applications

• Motor starters in industrial control panels
• Pumps, compressors and hydraulic power packs
• Fans, blowers and HVAC equipment
• Conveyors and material handling systems
• Machine tools and general manufacturing machinery

Safety note: Installation and adjustments must be performed by a qualified electrician. Isolate all power, tighten terminals to 2.5–3 Nm, and operate within the specified ratings and standards.