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lovato sm1r2500 sm1 rotary control motor circuit breaker 20 – 25 amp
Lovato SM1R2500 motor protection circuit breaker with adjustable 20 to 25 A thermal protection, 50 kA breaking capacity and rotary knob operation.
£70.58
Why Choose the Lovato SM1R2500 Motor Protection Circuit Breaker?
The Lovato SM1R2500 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 20 to 25 A, providing accurate protection for industrial motor circuits. Its compact construction, high breaking capacity and straightforward operation make it ideal for demanding motor control applications where dependable protection and easy installation are required.
With a rated current of 25 A, a 3-pole configuration and a 50 kA breaking capacity at 400 V AC, the SM1R2500 provides robust motor protection whilst remaining suitable for installation on standard DIN rails or direct panel mounting within industrial control systems.
Key Advantages
- Compact motor protection circuit breaker for industrial motor applications.
- 20 to 25 A adjustable thermal trip range.
- 50 kA short-circuit breaking capacity at 400 V AC.
- Combined thermal and magnetic protection.
- Phase failure sensitive motor protection.
- Rotary knob operation with lockable OFF position.
Key Features
- Lovato SM1R motor protection circuit breaker series.
- 25 A rated current.
- 20 to 25 A thermal adjustment range.
- 3-pole motor protection.
- Magnetic and thermal trip protection.
- Magnetic tripping at approximately 13 × In.
- Rotary knob control with clear ON/OFF indication.
- 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 SM1R2500 protect electric motors by disconnecting the supply during overload, short-circuit or phase failure conditions. This helps reduce the risk of motor damage, improve equipment reliability and minimise costly downtime within industrial installations.
The SM1R series is widely used by machine builders and panel manufacturers thanks to its compact footprint, dependable protection characteristics and straightforward installation. Its adjustable thermal setting allows accurate matching to the connected motor for improved operational reliability.
Typical Applications
- Three-phase motor protection.
- Industrial control panels.
- Machine building and OEM equipment.
- Packaging and production machinery.
- Pumps, compressors and conveyor systems.
- Automation and motor control centres.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Actuator Type | Rotary | |
| Terminal Type | Screw Terminal | |
| Current Range | 16–25 A | |
| Application | Motor protection | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Motor protection breaker | |
| Breaking Capacity | 50 kA | |
| Manufacturer | Lovato Electric | |
| Series | SM1R | |
| Model | SM1R2500 | |
| Product type | Motor protection circuit breaker | |
| Rated current | 25 A | |
| Thermal trip adjustment range | 20 to 25 A | |
| Number of poles | 3 | |
| Type of protection | Magnetic and thermal | |
| Phase failure protection | Yes | |
| Type of control | Rotary knob | |
| Short-circuit breaking capacity Icu at 400 V AC | 50 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 | |
| Weight | approx. 340 g | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato SM1R2500 used for?
The Lovato SM1R2500 protects three-phase motors against overloads, short circuits and phase failure conditions.
What current range does the SM1R2500 support?
The adjustable thermal protection range is 20 to 25 A.
What is the breaking capacity of the SM1R2500?
The breaker provides a short-circuit breaking capacity of 50 kA at 400 V AC.
Does the SM1R2500 include phase failure protection?
Yes. The breaker provides phase failure sensitive protection in addition to thermal and magnetic motor protection.
Where is the SM1R2500 typically installed?
It is designed for installation on a standard 35 mm DIN rail or by screw mounting inside electrical control panels and motor control centres.
Trusted by Panel Builders Worldwide
Lovato SM1R motor protection circuit breakers are trusted by machine builders, automation engineers and industrial panel builders for dependable motor protection, reliable switching performance and long service life.
