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RF91V5 Lovato RF9 overload relay BG mini contactors 0.9-1.5 amp 0.55 kw
Lovato 11RF91V5 RF9 thermal overload motor protection relay with 0.9-1.5 A adjustable current range designed for three-phase motor protection and industrial control systems.
£36.26
Why Choose the Lovato 11RF91V5 Thermal Motor Protection Relay?
The Lovato 11RF91V5 is a reliable three-phase thermal overload relay designed to protect electric motors against overload conditions and phase failure in industrial motor control applications. As part of the dependable Lovato RF9 motor protection relay series, it provides accurate thermal protection and direct integration with BG series mini-contactors.
This motor protection relay combines adjustable overload protection with phase failure sensitivity and manual reset functionality, helping prevent motor damage caused by excessive current, abnormal operating conditions or single-phase operation. Its compact design allows direct mounting on compatible Lovato BG06, BG09 and BG12 mini-contactors.
With an adjustable operating current range of 0.9–1.5 A, the Lovato 11RF91V5 is suitable for protecting small three-phase motors in industrial automation, machinery and control panel applications where dependable overload protection is required.
Key Advantages
- Reliable thermal motor protection relay for industrial applications.
- Adjustable 0.9–1.5 A current range for accurate motor protection.
- Phase failure and single-phase sensitivity for improved motor safety.
- Manual reset operation for controlled fault recovery.
- Direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
- Compact design for efficient motor starter assemblies.
Key Features
- Lovato RF9 motor protection relay series.
- Three-pole thermal overload relay.
- 0.9–1.5 A adjustable operating current.
- Class 10A thermal tripping characteristic.
- Phase failure detection.
- Manual reset function.
- 1 normally open and 1 normally closed auxiliary contact.
- Direct mounting design for Lovato BG series mini-contactors.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the Lovato 11RF91V5 protect motors by monitoring operating current and disconnecting the control circuit when an overload condition occurs. This helps reduce the risk of overheating and extends the service life of motors and connected equipment.
The Lovato RF9 series is designed for compact motor starter solutions, combining reliable protection, straightforward adjustment and compatibility with Lovato BG contactors. Its phase failure sensitivity provides additional protection for three-phase motors used in industrial environments.
Typical Applications
- Three-phase motor starters.
- Industrial automation equipment.
- Machine control panels.
- Pumps and small motor-driven systems.
- Manufacturing machinery.
- Motor control assemblies using Lovato BG contactors.
Technical Specifications
Tick the specs you need, then view products that match.
| Compatible With | BG06–BG12 | |
|---|---|---|
| Mounting Type | Direct mount on contactor | |
| Device Type | Thermal Overload Relay | |
| Current Range | 0.9–1.5 A | |
| Trip Class | Class 10A | |
| Reset Type | Manual | |
| Poles | 3-pole | |
| Manufacturer | Lovato Electric | |
| Series | RF9 | |
| Model | 11RF91V5 | |
| Product type | Thermal overload motor protection relay | |
| Number of poles | 3 | |
| Operating current range | 0.9–1.5 A | |
| Trip class | 10A | |
| Reset mode | Manual | |
| Phase failure detection | Yes | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Rated insulation voltage Ui | 690 V | |
| Rated operational voltage | 690 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Mounting type | Direct mounting on BG06, BG09 and BG12 mini-contactors | |
| Protection rating | IP20 | |
| Operating temperature | -20 to +55 °C | |
| Weight | approx. 116 g |
Frequently Asked Questions
What is the Lovato 11RF91V5 used for?
The Lovato 11RF91V5 is a thermal overload relay used to protect three-phase motors against overloads and phase failure conditions.
What current range does this overload relay support?
The relay supports an adjustable operating current range of 0.9–1.5 A.
Does the Lovato 11RF91V5 detect phase failure?
Yes, the relay includes phase failure detection and single-phase sensitivity for improved motor protection.
How is this motor protection relay reset?
The Lovato 11RF91V5 uses a manual reset function after a protective trip.
Which contactors is this relay compatible with?
The relay is designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
Trusted by Industrial Automation Professionals
Lovato RF9 motor protection relays are widely used in industrial motor control systems to provide reliable overload protection, phase monitoring and dependable equipment safety.
