Lovato 11RF91 RF9 thermal overload relay with 0.6–1 A adjustable range designed for BG series mini-contactors and industrial motor protection applications.
£60.43
The Lovato 11RF91 is a compact and reliable thermal motor protection relay designed for use with Lovato BG series mini-contactors in industrial motor control and automation applications. It provides dependable overload protection, phase failure detection and manual reset functionality to help protect three-phase motors against operating faults.
This three-pole thermal overload relay features an adjustable current range of 0.6–1 A, a 10A trip class and sensitivity to phase failure and single-phase operation. Its direct mounting design allows straightforward installation onto compatible Lovato BG06, BG09 and BG12 mini-contactors.
With 1NO + 1NC auxiliary contacts, screw terminals and an IP20 protection rating, the Lovato 11RF91 provides a practical motor protection solution for compact control panels, machinery and industrial automation systems.
Thermal overload relays protect electric motors by monitoring current levels and disconnecting the motor control circuit when sustained overload conditions occur. The Lovato 11RF91 provides reliable protection for small three-phase motors used in industrial equipment and automation systems.
Designed for use with Lovato BG series contactors, the RF9 range offers a compact solution for motor starters where reliable overload protection, easy installation and straightforward maintenance are required.
| Manufacturer | Lovato Electric |
|---|---|
| Series | RF9 Thermal Overload Relays |
| Model | 11RF91 |
| Product type | Thermal motor protection relay |
| Number of poles | 3 |
| Adjustable operational current | 0.6–1 A |
| Trip class | 10A |
| Reset mode | Manual |
| Phase failure detection | Yes |
| Auxiliary contacts | 1NO + 1NC |
| Rated insulation voltage | 690 V AC |
| Rated operational voltage | 690 V AC |
| Mounting type | Direct mounting on BG06, BG09 and BG12 mini-contactors |
| Terminal type | Screw terminals |
| Protection rating | IP20 |
| Operating temperature | -20 to +55 °C |
| Weight | approx. 115 g |
The Lovato 11RF91 is a thermal overload relay used to protect three-phase motors from overload conditions and phase failure.
The relay provides an adjustable protection range of 0.6–1 A.
The Lovato 11RF91 uses a manual reset function for controlled restoration after a fault.
The relay is designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
The Lovato 11RF91 includes 1 normally open and 1 normally closed auxiliary contact for signalling and control functions.
Lovato RF9 thermal overload relays are widely used by machine builders and automation professionals to provide reliable motor protection and efficient control solutions in industrial systems.
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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...