lovato sm1r3200 sm1 rotary control motor circuit breaker 24 - 32 amp

Why Choose the SM1R3200?

Engineered for motor circuits, the Lovato SM1R3200 motor protection circuit breaker delivers overload and short‑circuit protection. With a 24–32 A thermal trip adjustment and a 50 kA Icu at 400 V, SKU SM1R3200 combines thermal‑magnetic protection, a rotary knob, and a 3‑pole design to safeguard three‑phase motors in industrial control panels.

Rated Ui 690 V and Uimp 6 kV, this SM1R device supports reliable operation across defined environmental limits. It offers 100000 mechanical cycles, operates from −20 to +60 °C up to 3000 m altitude, and conforms to IEC/EN 60947‑1/‑2/‑4‑1, UL508 and CSA C22.2 n° 14. Terminal screws tighten to 2.5–3 Nm for secure connections.

Key Benefits

• 50 kA Icu at 400 V short‑circuit breaking capacity.
• Adjustable thermal trip 24–32 A for precise motor protection.
• Thermal‑magnetic protection for overloads and short circuits.
• 3‑pole format for three‑phase motor circuits in control panels.
• Rotary knob control enables quick setting and straightforward operation.
• Ui 690 V and Uimp 6 kV insulation ratings.
• Operates −20 to +60 °C; usable up to 3000 m altitude.
• 100000 mechanical cycles for high endurance.

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

• SM1R3200 motor protection circuit breaker
• Installation leaflet
• Manufacturer datasheet (downloadable)

Applications

• Protection of three‑phase induction motors in industrial panels.
• Pump sets and compressors requiring adjustable overload protection.
• Fans, blowers and HVAC motor feeders at 400 V.
• Conveyors and material handling machinery circuits.
• Machine tools and process equipment motor starters.

Safety note: Install and configure only by qualified personnel. Isolate the supply before work, tighten terminals to 2.5–3 Nm, and operate within the specified current, temperature and altitude limits in accordance with applicable standards.