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11RFN905 – T/O RELAY RFN9 0.3-0.5A
Lovato 11RFN905 thermal motor protection relay with a 0.3–0.5 A adjustable overload range designed for three-phase motor protection and industrial control applications.
£41.60
Why Choose the Lovato 11RFN905 Thermal Overload Relay?
The Lovato 11RFN905 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 RF9 series motor protection relays, it is engineered for dependable protection and direct integration with compatible Lovato BG series mini-contactors.
This relay provides accurate thermal overload protection while helping safeguard motors against excessive current conditions. Its compact design, manual reset function and straightforward installation make it suitable for a wide range of industrial motor control applications.
With an adjustable overload current range of 0.3–0.5 A and a three-pole three-phase configuration, the 11RFN905 is suitable for protecting small industrial motors. The relay is designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors for convenient starter assembly.
Key Advantages
- Compact thermal overload relay for motor protection applications.
- 0.3–0.5 A adjustable overload current range for small motor protection.
- Three-pole three-phase design for industrial motor circuits.
- Manual reset operation for controlled fault recovery.
- Direct mounting compatibility with Lovato BG06, BG09 and BG12 mini-contactors.
- Reliable protection against motor overload conditions.
Key Features
- Lovato RF9 series motor protection relay.
- 0.3–0.5 A adjustable thermal overload range.
- Three-pole three-phase construction.
- Manual resetting function.
- Trip indicator and test button.
- IP20 front protection rating.
- Direct mounting on compatible Lovato BG series mini-contactors.
- Suitable for industrial motor control and protection systems.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the Lovato 11RFN905 protect motors by monitoring current levels and disconnecting the control circuit when overload conditions occur. This helps prevent motor damage and improves the reliability of industrial electrical systems.
The RF9 series is designed for use with Lovato contactors and motor starters, providing a practical solution for machine builders, panel manufacturers and industrial automation engineers requiring dependable motor protection.
Typical Applications
- Industrial motor starters.
- Machine control panels.
- Production and processing equipment.
- Pumps and small motor-driven systems.
- Automation and OEM machinery.
- Industrial electrical control systems.
Technical Specifications
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| Current Range | 0.3–0.5 A | |
|---|---|---|
| Compatible With | BG06–BG12 | |
| Device Type | Thermal Overload Relay | |
| Reset Type | Manual | |
| Monitoring Function | Temperature / thermistor | |
| Monitored Supply | Single-phase | |
| Signal / Input Range | 0.3–0.5 A | |
| IP Rating | IP20 | |
| Manufacturer | Lovato Electric | |
| Series | RF9 | |
| Model | 11RFN905 | |
| Product type | Thermal motor protection relay | |
| Poles | 3 | |
| Adjustment range | 0.3–0.5 A | |
| Reset mode | Manual | |
| Phase failure detection | No | |
| Protection rating | IP20 | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 8 kV | |
| Tripping class | 10A | |
| Mounting type | Direct mounting on BG06, BG09 and BG12 mini-contactors | |
| Weight | approx. 116 g |
Frequently Asked Questions
What is the Lovato 11RFN905 used for?
The Lovato 11RFN905 is a thermal overload relay used to protect three-phase motors from overload conditions in industrial control applications.
What current range does the relay support?
The relay supports an adjustable overload current range of 0.3–0.5 A.
How is the Lovato 11RFN905 reset?
The 11RFN905 uses a manual reset function to allow controlled recovery after an overload trip.
Which contactors can the relay be mounted with?
The relay is designed for direct mounting on compatible Lovato BG06, BG09 and BG12 mini-contactors.
What type of protection does this relay provide?
The relay provides thermal overload protection for three-phase motors in industrial motor control systems.
Trusted by Industrial Automation Professionals
Lovato RF9 series motor protection relays are used by electrical engineers and machine builders to provide reliable overload protection and efficient motor control solutions in industrial applications.
