lovato sm1r0063 sm1 rotary control motor circuit breaker 0.4 - 0.63 amp

Why Choose the SM1R0063?

The Lovato SM1R0063 motor protection circuit breaker delivers precise overload and short‑circuit safeguarding for motors. With an adjustable thermal trip range of 0.4…0.63 A and magnetic/thermal protection, it achieves an IEC Icu of 100 kA at 400 V. This 3‑pole, rotary‑knob Type E device offers Ui 690 V and Uimp 6 kV performance, combining compact control with robust protection.

Engineered for reliability, the SM1R0063 conforms to IEC/EN 60947-1, -2 and -4-1, plus UL508 and CSA C22.2 n° 14, and is certified UL Type E. It supports demanding conditions with −20…+60 °C operation, up to 3000 m altitude, and 100,000 mechanical cycles. With 2.5–3 Nm terminal tightening torque and a clear rotary knob interface, it integrates seamlessly into control panels seeking proven, long‑term motor protection.

Key Benefits

• High short-circuit breaking capacity Icu 100 kA at 400 V.
• Adjustable thermal trip 0.4…0.63 A for precise motor matching.
• Magnetic and thermal protection in one compact unit.
• 3-pole Type E design with UL Type E certification.
• Rotary knob for clear, reliable manual control and reset.
• Ui 690 V and Uimp 6 kV withstand for demanding systems.
• Durable: 100,000 mechanical cycles; −20…+60 °C, up to 3000 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: 320 g

What’s Included

• Lovato SM1R0063 motor protection circuit breaker
• Manufacturer datasheet and technical documentation (downloadable)

Applications

• Motor protection in IEC/EN and UL compliant control panels
• Type E motor starter assemblies requiring UL Type E certification
• Installations needing Icu 100 kA at 400 V short-circuit capacity
• Sites with −20…+60 °C ambient and up to 3000 m altitude

Safety note: Install and commission by qualified personnel only. Isolate supply before work, set the thermal adjustment to the motor’s rated current, and tighten terminals to 2.5–3 Nm in line with applicable IEC/UL standards.