Why Choose the Lovato SM1RE1800 Manual Motor Starter?
The Lovato SM1RE1800 is a robust Type E manual motor starter and motor protection circuit breaker designed to provide reliable switching, overload protection and short-circuit protection for electric motors in industrial control systems. As part of the Lovato SM1R motor protection circuit breaker series, it combines thermal and magnetic protection in a compact three-pole device.
Designed for demanding machinery and automation applications, the SM1RE1800 features an adjustable thermal trip range of 13–18 A, phase-failure sensitivity and a rotary operating mechanism. Its high short-circuit breaking capability makes it suitable for installations where dependable protection and straightforward manual motor isolation are required.
The SM1RE1800 has a rated current of 18 A, a rated insulation voltage of 690 V and an ultimate short-circuit breaking capacity of up to 100 kA at 400 V AC. It is UL Type E approved as a manual self-protected combination motor controller and can be mounted on a standard 35 mm DIN rail or by screws.
Key Advantages
- Combined manual motor starter and motor protection circuit breaker.
- Adjustable 13–18 A thermal trip range for matching motor full-load current.
- Magnetic and thermal protection against short circuits and overloads.
- High 100 kA Icu breaking capacity at 400 V AC.
- UL Type E approved manual self-protected combination motor controller.
- Phase-failure sensitivity helps protect three-phase motors against abnormal supply conditions.
- Compact rotary-operated design for industrial control panels and machinery.
Key Features
- Lovato SM1R series motor protection circuit breaker.
- 13–18 A adjustable thermal trip range.
- 18 A rated current.
- 3-pole construction for three-phase motor circuits.
- 13 × In magnetic trip.
- Class 10A tripping characteristic.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- Rotary knob manual control.
- DIN rail or screw mounting.
Reliable Motor Protection for Industrial Machinery
Manual motor starters such as the Lovato SM1RE1800 combine switching and protective functions in a single compact device. The adjustable thermal release protects motors against sustained overload conditions, while the magnetic release provides rapid disconnection during high-current short circuits.
The SM1R series is designed for integration into industrial machinery, control panels and motor starter assemblies. Its Type E self-protected configuration, high breaking capacity and phase-failure sensitivity help provide dependable motor circuit protection while reducing the number of separate protective components required.
Typical Applications
- Industrial motor starter panels.
- Pumps, fans and ventilation systems.
- Conveyors and material handling equipment.
- Compressors and processing machinery.
- Packaging and manufacturing equipment.
- OEM machinery and industrial automation systems.
