Lovato SM2R5000 motor protection circuit breaker with thermal and magnetic protection, 34-50 A adjustable trip range, 50 A rated current and 50 kA breaking capacity at 400 V AC for industrial motor circuits and control panels.
£292.10
The Lovato SM2R5000 is a robust motor protection circuit breaker designed to provide reliable thermal and magnetic protection for industrial motor circuits, machinery and automation panels. As part of the durable Lovato SM2R series, it is ideal for panel builders, OEM machine manufacturers and maintenance engineers requiring dependable motor protection for higher current applications.
This breaker combines adjustable thermal overload protection with fast magnetic short-circuit tripping, helping protect motors, cables and connected electrical equipment from damaging fault conditions. Its rotary knob control provides clear ON/OFF operation, while the three-pole construction supports use in demanding three-phase motor control installations.
With a 34-50 A thermal trip adjustment range, 50 A rated current and a 50 kA breaking capacity at 400 V AC, the SM2R5000 is well suited to industrial machinery, motor starter assemblies and control panels requiring compact, high-performance motor circuit protection.
Motor protection circuit breakers such as the Lovato SM2R5000 help protect motors by disconnecting the circuit during overload and short-circuit fault conditions. Thermal protection responds to sustained overloads, while magnetic protection provides rapid interruption during short-circuit events.
The SM2R series is designed for industrial motor control panels, machinery and starter assemblies where dependable protection, compact installation and clear manual operation are required. Its adjustable trip range allows the breaker to be matched to the motor current for accurate protection.
| Phase | Three Phase |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SM2R |
| Model | SM2R5000 |
| Product type | Motor protection circuit breaker |
| Rated current | 50 A |
| Thermal trip adjustment range | 34-50 A |
| Protection type | Thermal and magnetic |
| Breaking capacity (Icu) | 50 kA at 400 V AC |
| Operating voltage | 230-690 V AC |
| Rated insulation voltage | 1000 V AC |
| Rated impulse withstand voltage | 6 kV |
| Rated frequency | 50 / 60 Hz |
| Number of poles | 3 |
| Control type | Rotary knob |
| Protection rating | IP20 |
| Mounting type | DIN rail or panel mounting |
| Dimensions (H × W × D) | approx. 140 × 55 × 145 mm |
| Weight | approx. 1040 g |
| HS Code | 85362010 |
The SM2R5000 is used to provide thermal overload and magnetic short-circuit protection for industrial motor circuits and three-phase machinery.
The breaker has an adjustable thermal trip range of 34-50 A and a rated current of 50 A.
The SM2R5000 provides a 50 kA breaking capacity at 400 V AC.
This model provides thermal and magnetic protection, helping protect against both overload and short-circuit fault conditions.
It is designed for DIN rail or panel mounting inside an electrical enclosure, motor control cabinet or industrial switchgear assembly.
Lovato SM2R motor protection circuit breakers are widely used by panel builders, machine manufacturers and automation engineers to deliver reliable motor protection, high breaking capacity and long-term performance in industrial installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...