Lovato RF200125 is a three-pole Class 10A thermal motor protection relay with a 75–125 A adjustable operational current range, selectable manual or automatic resetting and compatibility with Lovato B series contactors.
£468.25
The Lovato RF200125 is a three-pole thermal motor protection relay with an adjustable operational current range of 75–125 A. Designed for use with Lovato B series contactors, it provides thermal overload protection for three-phase motors in industrial machinery, motor starters and electrical control systems.
Part of the Lovato RF200 motor protection relay series, the RF200125 combines a Class 10A tripping characteristic with selectable manual or automatic resetting. An integrated test button and trip indicator support commissioning and maintenance, while one normally open and one normally closed auxiliary contact provide interfaces for control and signalling circuits.
With a 690 V rated operational voltage, 1000 V rated insulation voltage and 6 kV rated impulse withstand voltage, the RF200125 is engineered for demanding industrial motor control installations. Its screw-mounted construction and M8 power terminals provide a robust connection arrangement for higher-current motor protection applications.
Thermal overload relays protect motors against sustained overload conditions that can cause excessive heating and premature motor failure. An adjustable current setting allows the protection threshold to be matched to the rated operating current of the connected motor, helping provide appropriate thermal protection for the application.
The Lovato RF200125 combines a 75–125 A adjustment range with Class 10A tripping, selectable manual or automatic resetting, a test button and trip indication. Its 690 V rated operational voltage and robust screw-mounted construction make it suitable for higher-current industrial motor control systems.
| HS Code | 85364900 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | RF200 |
| Model | RF200125 |
| Product type | Thermal motor protection relay |
| Number of poles | 3 |
| Release type | Thermal |
| Operational current range | 75–125 A |
| Tripping class | 10A |
| Reset mode | Manual or automatic |
| Test button | Yes |
| Trip indicator | Yes |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated operational voltage | 690 V |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Operational frequency | 50–60 Hz |
| Frontal protection rating | IP20 |
| Overvoltage category | III |
| Pollution degree | 3 |
| gG protection fuse | 200 A |
| aM protection fuse | 125 A |
| Power terminal type | Screw and flat washer |
| Power terminal screw | M8 |
| Power terminal width | 20 mm |
| Power terminal tightening torque | 18 Nm |
| Auxiliary rated insulation voltage | 690 V |
| Auxiliary rated impulse withstand voltage | 6 kV |
| Auxiliary rated operational voltage | 690 V |
| Auxiliary conventional free-air thermal current | 10 A at ≤40 °C |
| Maximum auxiliary flexible conductor section | 2.5 mm² |
| Auxiliary terminal tightening torque | 0.8–1 Nm |
| Operating temperature | -25 to +60 °C |
| Storage temperature | -50 to +70 °C |
| Temperature compensation range | -20 to +60 °C |
| Maximum altitude | 3000 m |
| Normal operating position | Vertical plane |
| Allowable mounting inclination | ±30° |
| Fixing | Screw |
| For contactor series | B |
| UL three-phase motor full-load current at 480 V | 125 A |
| UL three-phase motor full-load current at 600 V | 125 A |
| Package dimensions | 135 × 130 × 175 mm |
| Package volume | 3071.25 cm³ |
| Quantity per package | 1 |
| EAN13 | 8013975169490 |
| Conformity | IEC/EN 60947-1, IEC/EN 60947-4-1, UL508, CSA C22.2 No. 14 |
The Lovato RF200125 has an adjustable operational current range of 75–125 A.
The RF200125 has a Class 10A thermal overload tripping characteristic.
Yes. The RF200125 supports selectable manual or automatic reset.
The RF200125 incorporates one normally open and one normally closed auxiliary contact for integration with motor control and signalling circuits.
The RF200125 is specified for use with Lovato B series contactors.
The Lovato RF200125 provides adjustable 75–125 A thermal overload protection with Class 10A tripping, manual or automatic resetting and robust screw mounting for higher-current industrial motor control applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...