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lovato sm1r1800 sm1 rotary control motor circuit breaker 13 – 18 amp
Lovato SM1R1800 motor protection circuit breaker with adjustable 13 to 18 A thermal protection, 100 kA breaking capacity and rotary knob operation.
£55.66
Why Choose the Lovato SM1R1800 Motor Protection Circuit Breaker?
The Lovato SM1R1800 is a compact and reliable motor protection circuit breaker designed to protect three-phase motors against overloads, short circuits and phase failure conditions. As part of the Lovato SM1R series, it combines thermal and magnetic protection with rotary knob operation, making it suitable for industrial machinery, OEM equipment and automation systems.
This manual motor starter offers an adjustable thermal protection range of 13 to 18 A, providing accurate protection for industrial motor circuits. Its high short-circuit breaking capacity and compact construction make it ideal for demanding motor control applications where dependable protection and easy installation are required.
With a rated current of 18 A, a 3-pole configuration and a 100 kA breaking capacity at 400 V AC, the SM1R1800 provides robust motor protection whilst remaining compact enough for DIN rail installation inside electrical control panels.
Key Advantages
- Compact motor protection circuit breaker for industrial motor applications.
- 13 to 18 A adjustable thermal trip range.
- 100 kA short-circuit breaking capacity at 400 V AC.
- Combined thermal and magnetic protection.
- Phase failure sensitive motor protection.
- Rotary knob operation with clear manual ON/OFF control.
Key Features
- Lovato SM1R motor protection circuit breaker series.
- 18 A rated current.
- 13 to 18 A thermal adjustment range.
- 3-pole motor protection.
- Magnetic and thermal trip protection.
- Phase failure sensitive operation.
- Rotary knob control with lockable OFF position.
- 35 mm DIN rail or screw mounting for industrial control panels.
Reliable Motor Protection for Industrial Machinery
Motor protection circuit breakers such as the Lovato SM1R1800 protect electric motors by disconnecting the supply during overload, short-circuit or phase failure conditions. This helps reduce the risk of motor damage, improve system reliability and minimise unplanned downtime in industrial installations.
The SM1R series is widely used by machine builders and panel manufacturers thanks to its compact footprint, adjustable protection settings and dependable switching performance. It provides reliable motor protection whilst simplifying installation in modern control systems.
Typical Applications
- Three-phase motor protection.
- Industrial control panels.
- Machine building and OEM equipment.
- Packaging and production machinery.
- Pumps, fans and conveyor systems.
- Automation and motor control centres.
Technical Specifications
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| Current | 18 A | |
|---|---|---|
| Application | Motor protection | |
| Actuator Type | Rotary | |
| Terminal Type | Screw Terminal | |
| Current Range | 10–16 A, 16–25 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Motor protection breaker | |
| Breaking Capacity | 100 kA | |
| Manufacturer | Lovato Electric | |
| Series | SM1R | |
| Model | SM1R1800 | |
| Product type | Motor protection circuit breaker | |
| Rated current | 18 A | |
| Thermal trip adjustment range | 13 to 18 A | |
| Number of poles | 3 | |
| Type of protection | Magnetic and thermal | |
| Type of control | Rotary knob | |
| Magnetic tripping | 13 × In | |
| Short-circuit breaking capacity Icu at 400 V AC | 100 kA | |
| Rated insulation voltage Ui | 690 V AC | |
| Rated impulse withstand voltage Uimp | 6 kV | |
| Frequency | 50 / 60 Hz | |
| Tripping class | 10A | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail / screw mounting | |
| Approximate dimensions | 97 × 45 × 91 mm | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato SM1R1800 used for?
The Lovato SM1R1800 protects three-phase motors against overloads, short circuits and phase failure conditions.
What current range does the SM1R1800 support?
The adjustable thermal protection range is 13 to 18 A.
What is the breaking capacity of the SM1R1800?
The breaker provides a short-circuit breaking capacity of 100 kA at 400 V AC.
Can the SM1R1800 be mounted on a DIN rail?
Yes. It is designed for installation on a standard 35 mm DIN rail inside electrical control panels.
Does the SM1R1800 include thermal and magnetic protection?
Yes. It combines adjustable thermal overload protection with magnetic short-circuit protection for comprehensive motor protection.
Trusted by Panel Builders Worldwide
Lovato SM1R motor protection circuit breakers are trusted by machine builders, automation engineers and panel builders for reliable motor protection, long service life and dependable industrial performance.
