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RFN200150 – T/O RELAY 90-150A MAN-AUTO
Lovato RFN200150 three-pole thermal motor protection relay with a 90–150 A adjustable overload range, manual or automatic reset and high-current industrial motor protection capability.
£278.40
Why Choose the Lovato RFN200150 Thermal Overload Relay?
The Lovato RFN200150 is a robust 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 RF200 series motor protection relays, it is engineered for high-current motor protection with manual or automatic resetting and flexible installation options.
This relay provides accurate thermal overload protection while helping safeguard motors against excessive current conditions. Its three-pole design, integrated auxiliary contacts, test button and trip indicator make it suitable for industrial motor starters, electrical control panels and demanding automation systems.
With an adjustable operational current range of 90–150 A and a three-phase configuration, the RFN200150 is designed for protecting larger industrial motors. The relay is suitable for independent screw mounting or installation with compatible Lovato contactors using the appropriate connection accessories.
Key Advantages
- Heavy-duty thermal overload relay for industrial motor protection.
- 90–150 A adjustable operational current range for high-current motor applications.
- Three-pole three-phase design for industrial motor circuits.
- Manual or automatic reset operation for flexible system requirements.
- Integrated test button and trip indicator simplify commissioning and maintenance.
- Reliable protection for high-power motors and industrial motor control assemblies.
Key Features
- Lovato RF200 series motor protection relay.
- 90–150 A adjustable thermal overload range.
- Three-pole three-phase construction.
- Class 10A tripping characteristic.
- Manual or automatic resetting function.
- 1 NO + 1 NC auxiliary contacts.
- IP20 frontal protection rating.
- Integrated test button and trip indication.
- Independent mounting or mounting with compatible Lovato contactors.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the Lovato RFN200150 monitor motor current and disconnect the control circuit when overload conditions occur. This helps prevent motor damage, reduce equipment downtime and improve the reliability of industrial electrical systems.
The RF200 series is designed for demanding industrial applications requiring dependable protection for high-current motors. Its adjustable settings, auxiliary contacts and flexible reset options provide a practical solution for large motor starters and automation systems.
Typical Applications
- Large industrial motor starters.
- Heavy-duty machine control panels.
- Pumps and high-power motor-driven equipment.
- Industrial production machinery.
- Material handling systems.
- OEM automation and process equipment.
Technical Specifications
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| Current Range | 90–150 A | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Compatible With | BF160–BF230 | |
| Load Voltage | 690 V | |
| Monitored Supply | Single-phase | |
| Reset Type | Manual or automatic | |
| Monitoring Function | Temperature / thermistor | |
| Contacts | 1NO + 1NC | |
| IP Rating | IP20 | |
| HS Code | 85364900 | |
| Manufacturer | Lovato Electric | |
| Series | RF200 | |
| Model | RFN200150 | |
| Product type | Thermal motor protection relay | |
| Number of poles | 3 | |
| Operational current range | 90–150 A | |
| Type of release | Thermal | |
| Reset mode | Manual or automatic | |
| Phase failure detection | No | |
| Tripping class | 10A | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated operational voltage | 690 V | |
| Operational frequency | 50 / 60 Hz | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Protection rating | IP20 | |
| Test button | Yes | |
| Trip indicator | Yes | |
| Power terminals | M8 screw and flat washer | |
| Mounting type | Independent screw mounting or suitable contactor mounting | |
| Weight | approx. 2.15 kg |
Frequently Asked Questions
What is the Lovato RFN200150 used for?
The Lovato RFN200150 is a thermal overload relay designed to protect three-phase motors against sustained overload conditions in industrial applications.
What current range does the Lovato RFN200150 support?
The relay supports an adjustable operational current range of 90–150 A.
How is the Lovato RFN200150 reset?
The RFN200150 supports both manual and automatic reset operation depending on system requirements.
What type of protection does the relay provide?
The relay provides thermal overload protection for high-current three-phase industrial motors.
What auxiliary contacts are included?
The RFN200150 includes one normally open and one normally closed auxiliary contact for motor control and signalling circuits.
Trusted by Industrial Automation Professionals
Lovato RF200 series motor protection relays provide reliable high-current overload protection solutions for industrial motor control, machine building and automation applications.
