lovato sm1p0400 sm1 push button motor circuit breaker 2.5 - 4 amp

Why Choose the SM1P0400?

SM1P0400 from Lovato is a motor protection circuit breaker for dependable safeguarding of motor circuits. It provides an adjustable 2.5…4 A thermal trip with combined magnetic and thermal protection, and an Icu of 100 kA at 400 V. The 3‑pole design and push‑button control suit straightforward panel integration, and the device weighs 350 g.

Built to international standards, the SM1P0400 features Ui 690 V and Uimp 6 kV, with a mechanical life of 100000 cycles for durability. It operates from -20 to +60 °C and up to 3000 m altitude, with terminals designed for 2.5 to 3 Nm tightening torque. Conformity includes IEC/EN 60947-1/-2/-4-1, UL508 and CSA C22.2 n° 14, supporting assured performance and compliance.

Key Benefits

• 100 kA Icu at 400 V for high short-circuit breaking capacity.
• Adjustable 2.5…4 A thermal trip to match motor full-load current.
• Combined magnetic and thermal protection for overloads and faults.
• 3-pole configuration for motor circuit protection.
• Rated insulation voltage Ui 690 V; impulse withstand voltage 6 kV.
• Robust mechanical life of 100000 cycles for long service.
• Operates from -20 to +60 °C; up to 3000 m altitude.

Technical Specification

• Product type designation: SM1P
• 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: 350 g

What’s Included

• Lovato SM1P0400 motor protection circuit breaker (3‑pole)
• Product datasheet and documentation

Applications

• Protecting motor circuits within the 2.5…4 A thermal trip range
• Installations requiring 100 kA Icu at 400 V short-circuit breaking capacity
• Panels with rated insulation voltage up to 690 V and 6 kV impulse withstand
• Environments from -20 to +60 °C and up to 3000 m altitude

Safety note: Installation and adjustment must be carried out by qualified personnel. Isolate the supply before work, set the thermal trip within 2.5…4 A, and tighten terminals to 2.5–3 Nm in line with applicable IEC/EN standards.