lovato sm1r1400 sm1 rotary control motor circuit breaker 9 - 14 amp

Why Choose the SM1R1400?

Engineered by Lovato, the SM1R1400 motor protection circuit breaker safeguards three‑phase motors with dependable magnetic and thermal protection. With an adjustable 9...14 A thermal trip and a robust 100 kA Icu at 400 V, it delivers fast fault clearing and precise overload control. A 3‑pole format and intuitive rotary knob simplify setup and on‑site adjustments for consistent, repeatable protection.

Built for demanding installations, SM1R series performance includes Ui 690 V and Uimp 6 kV, with reliable operation from -20 to +60 °C up to 3000 m altitude. Tested for 100000 mechanical cycles and compliant with IEC/EN 60947-1, 60947-2 and 60947-4-1, plus UL508 and CSA C22.2 n° 14. Terminal tightening torque is 2.5 to 3 Nm for secure connections.

Key Benefits

• High short-circuit breaking capacity: Icu 100kA at 400V.
• Adjustable thermal trip from 9 to 14 A for precise protection.
• Combined magnetic and thermal protection in one compact unit.
• Simple, reliable rotary knob control for on-site setting.
• Rated insulation voltage Ui 690 V for robust system resilience.
• Withstands 6 kV impulse overvoltage; suitable up to 3000 m altitude.
• Wide operating temperature range from -20 to +60 °C.

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

• Lovato SM1R1400 motor protection circuit breaker (3‑pole)
• Manufacturer product datasheet (downloadable)
• Protective packaging for transit

Applications

• Protection and control of three-phase motor circuits within 9...14 A.
• IEC/EN 60947-compliant motor starter assemblies and control panels.
• Installations requiring 100 kA Icu at 400 V short-circuit capability.
• Environments operating between -20 and +60 °C, up to 3000 m altitude.

Safety note: Install and commission only by qualified personnel. Isolate power before work, tighten terminals to 2.5–3 Nm, and follow IEC/EN 60947 practices and local regulations.