Lovato SM3R9000 motor protection circuit breaker with 70-90 A adjustable thermal trip range, 90 A rated current and 50 kA breaking capacity at 400 V AC.
£359.24
The Lovato SM3R9000 is a robust motor protection circuit breaker designed to provide dependable thermal and magnetic protection for industrial motors. As part of the Lovato SM3R motor protection circuit breaker series, it combines motor overload protection, short-circuit protection and manual switching in one compact device.
With an adjustable thermal trip range of 70–90 A and a rated current of 90 A, the SM3R9000 is suitable for higher current motor control applications where reliable protection and safe isolation are essential. Its 50 kA breaking capacity at 400 V AC provides strong short-circuit protection for demanding industrial installations.
The SM3R9000 features thermal magnetic protection, rotary knob operation and compatibility with Lovato SM series accessories, making it ideal for motor control centres, machinery panels, pump systems, fan systems and OEM automation equipment.
Motor protection circuit breakers help protect electric motors from overloads and short circuits while allowing operators to manually switch and isolate motor circuits. By combining thermal overload protection with magnetic short-circuit protection, they support safe, reliable and space-efficient motor control panel design.
The Lovato SM3R9000 is engineered for demanding industrial installations where higher current motor protection, dependable switching and strong fault-breaking performance are required.
| Phase | Three Phase |
|---|---|
| Manufacturer | Lovato Electric |
| Series | SM3R |
| Model | SM3R9000 |
| Product type | Motor protection circuit breaker |
| Thermal trip adjustment range | 70–90 A |
| Rated current (In) | 90 A |
| Number of poles | 3 |
| Type of protection | Magnetic and thermal |
| Short-circuit breaking capacity (Icu) | 50 kA at 400 V AC |
| Rated operating voltage | 230–690 V AC |
| Rated insulation voltage | 1 kV |
| Type of control | Rotary knob |
| Electrical connection | Screw terminals |
| Mounting type | DIN rail / panel mounting |
| Protection rating | IP20 |
| Certified UL Type E | Yes |
| Package dimensions | 175 × 180 × 75 mm |
| EAN | 8013975219867 |
| Weight | approx. 2.3 kg |
| Standards | IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1, UL508, CSA C22.2 No.14 |
| Certifications | cULus, EAC |
| HS Code | 85362090 |
The SM3R9000 is used to protect industrial motors against overloads and short circuits while also providing manual switching and isolation.
The SM3R9000 has an adjustable thermal trip range of 70–90 A and a rated current of 90 A.
The SM3R9000 has an IEC short-circuit breaking capacity of 50 kA at 400 V AC.
It provides thermal and magnetic protection, covering both motor overload and short-circuit fault conditions.
Yes. It is designed for industrial motor control panels, motor control centres, OEM machinery and automation systems.
Lovato SM3R motor protection circuit breakers are widely used by panel builders, automation engineers and machine manufacturers to provide reliable motor protection, safe switching and dependable operation in demanding electrical 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...