SM1RM0040 Lovato magnetic manual motor starter 0.25-0.4 amp

Why Choose the SM1RM0040?

The Lovato SM1RM0040 Motor Protection Circuit Breaker delivers dependable magnetic protection for small motors and control circuits. Rated at 0.4 A with an IEC Icu of 100 kA at 400 V, it provides robust short-circuit interruption. A rotary knob offers straightforward local control, while conformity to IEC/EN 60947 standards supports confident specification in industrial panels.

Engineered for durability, the SM1RM type features a rated insulation voltage Ui of 690 V and an impulse withstand Uimp of 6 kV. It offers 100000 mechanical cycles, operates from -20 to +60 °C, and withstands altitudes up to 3000 m. Terminal tightening torque is 2.5 to 3 Nm. Conformity includes IEC/EN 60947 series, UL60947-4-1 and CSA C22.2 n° 60947-4-1.

Key Benefits

• 100 kA Icu at 400 V for high fault interruption capacity
• 0.4 A rated current protects small motors and control circuits precisely
• Magnetic protection ensures fast response to short-circuit events
• Rotary knob control enables simple, reliable on-panel operation
• Wide operating range from -20 to +60 °C suits challenging environments
• 100000 mechanical cycles deliver long service life in demanding duty
• Ui 690 V and Uimp 6 kV support robust insulation performance
• Conforms to IEC/EN, UL and CSA standards for assured specification

Technical Specification

• Product type designation: SM1RM
• 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 SM1RM0040 motor protection circuit breaker
• Mounting and operation instructions
• Factory packaging

Applications

• Protection of small motors in industrial control panels
• Short-circuit protection for auxiliary drives and actuators
• Motor branch circuit protection in machinery and OEM builds
• Upgrades and maintenance of IEC-compliant motor control assemblies

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