lovato sm1r0250 sm1 rotary control motor circuit breaker 1.6 - 2.5 amp

Why Choose the SM1R0250?

Engineered by Lovato, the SM1R0250 motor protection circuit breaker (SKU SM1R0250) delivers dependable Type E motor safeguarding with IEC breaking capacity Icu 100 kA at 400 V. Adjustable thermal trip 1.6–2.5 A and combined magnetic and thermal protection help protect motors from overloads and short circuits. A rotary knob provides straightforward control across a 3‑pole design with Ui rated to 690 V.

With 100000 mechanical life cycles, −20 to +60 °C operating range and 2.5–3 Nm terminal torque, this SM1R‑designated unit is built for demanding panels. It meets IEC/EN 60947‑1/‑2/‑4‑1, UL508 and CSA C22.2 n° 14, and is certified UL Type E. Rated impulse withstand Uimp 6 kV and tested to 3000 m altitude, it weighs 320 g and carries a Sustainability certification.

Key Benefits

• 100 kA breaking capacity at 400 V for high fault resilience.
• Adjustable thermal trip 1.6–2.5 A to match motor ratings.
• Combined magnetic and thermal protection for overload and short-circuit events.
• Rotary knob control for quick setup and manual operation.
• UL Type E certified and compliant with IEC/EN and CSA standards.
• Rated insulation voltage Ui 690 V and Uimp 6 kV.
• Robust 100000 mechanical life cycles for long service.

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 SM1R0250 motor protection circuit breaker (3‑pole, rotary knob)
• Built‑in thermal‑magnetic protection adjustable 1.6…2.5 A
• Basic instructions/documentation
• Protective packaging

Applications

• Motor protection for 1.6–2.5 A applications
• Industrial control panels and machine starters
• Pumps, fans, compressors and conveyors
• OEM equipment built to IEC/EN and UL standards

Safety note: Install and commission only by qualified personnel. Always isolate power before work and follow the manufacturer’s documentation and applicable standards.