Why Choose the Lovato 11RFN91 Thermal Overload Relay?
The Lovato 11RFN91 is a compact and reliable thermal motor protection relay designed to provide overload protection for three-phase motors in industrial control and automation applications. As part of the Lovato 11RFN9 series motor protection relays, it is specifically designed for use with compatible Lovato BG series mini-contactors.
This relay provides dependable thermal overload protection while helping safeguard motors against excessive current conditions. Its manual reset operation, integrated test button and trip indicator simplify motor protection and fault management, making it suitable for machine builders, panel manufacturers and industrial automation systems.
With an adjustable operational current range of 0.6–1 A and a three-pole three-phase configuration, the 11RFN91 is designed for protecting small industrial motors. The relay mounts directly onto Lovato BG06, BG09 and BG12 mini-contactors, enabling a compact motor starter assembly.
Key Advantages
- Compact thermal overload relay designed for motor protection applications.
- 0.6–1 A adjustable operational current range for small motor protection.
- Three-pole three-phase design for industrial motor circuits.
- Manual reset operation for controlled recovery following an overload trip.
- Direct mounting compatibility with Lovato BG06, BG09 and BG12 mini-contactors.
- Integrated test button and trip indicator assist commissioning and fault identification.
Key Features
- Lovato 11RFN9 series motor protection relay.
- 0.6–1 A adjustable operational current range.
- Three-pole three-phase construction.
- Thermal release with tripping class 10A.
- Manual resetting function.
- 1 NO + 1 NC auxiliary contacts.
- IP20 frontal protection rating.
- Direct mounting on compatible Lovato BG06, BG09 and BG12 mini-contactors.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the Lovato 11RFN91 monitor motor current and trip when sustained overload conditions exceed the selected setting. This helps protect motors against damaging overcurrent conditions while improving the reliability and service life of industrial motor control systems.
The 11RFN91 is designed to integrate directly with compatible Lovato BG mini-contactors, providing a compact solution for motor starters and electrical control panels. Its manual reset, test button, trip indication and auxiliary contacts support straightforward operation and integration into industrial control circuits.
Typical Applications
- Industrial motor starters.
- Machine control panels.
- Small pumps, fans and motor-driven equipment.
- Production and processing machinery.
- OEM automation systems and machine building.
- Industrial electrical control and motor protection systems.