Why Choose the Lovato 11RFN933 Thermal Overload Relay?
The Lovato 11RFN933 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 motor protection relay series, it is specifically designed for direct integration with Lovato BG06, BG09 and BG12 mini-contactors.
This three-pole thermal overload relay provides adjustable motor protection with manual resetting following a trip. Integrated auxiliary contacts, a test button and trip indication support straightforward integration into motor starter control circuits, while the compact direct-mounting format helps minimise control panel space requirements.
With an adjustable operational current range of 2–3.3 A and a rated operational voltage of 690 V, the 11RFN933 provides dependable protection for appropriately rated three-phase motors. Its class 10A tripping characteristic and robust electrical ratings make it suitable for industrial motor starters, machinery and automation equipment.
Key Advantages
- Compact thermal overload relay designed for three-phase motor protection.
- 2–3.3 A adjustable operational current range for accurate motor protection settings.
- Three-pole configuration suitable for three-phase motor circuits.
- Manual reset enables controlled restarting after an overload trip.
- Direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
- Integrated 1 NO + 1 NC auxiliary contacts for control and signalling circuits.
Key Features
- Lovato 11RFN9 motor protection relay series.
- 2–3.3 A adjustable operational current range.
- Three-pole thermal overload relay.
- Class 10A tripping characteristic.
- Manual resetting function.
- 1 NO + 1 NC auxiliary contacts.
- Integrated test button and trip indicator.
- IP20 frontal protection rating.
- Direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the Lovato 11RFN933 protect motors by responding to sustained overcurrent conditions. When the selected overload threshold is exceeded for the required period, the relay trips the associated control circuit, helping protect the motor and connected equipment against damaging overload conditions.
The 11RFN933 combines adjustable thermal protection with manual resetting, auxiliary contacts, test functionality and trip indication. Its direct compatibility with Lovato BG06, BG09 and BG12 mini-contactors makes it particularly suitable for compact motor starters and industrial control panels.
Typical Applications
- Industrial three-phase motor starters.
- Machine control panels.
- Pumps, fans and motor-driven equipment.
- Conveyors and material handling systems.
- Production and processing machinery.
- OEM automation systems and machine building.
