Why Choose the Lovato RF200125 Thermal Overload Relay?
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.
Key Advantages
- Adjustable 75–125 A operational current range for higher-current motor protection.
- Three-pole thermal overload relay for three-phase applications.
- Designed for use with Lovato B series contactors.
- Selectable manual or automatic reset.
- Class 10A tripping characteristic.
- Integrated test button and trip indicator.
- Includes 1 NO + 1 NC auxiliary contacts.
- 690 V rated operational voltage for industrial motor control systems.
Key Features
- Lovato RF200 motor protection relay.
- 75–125 A adjustable operational current.
- Three-pole configuration.
- Thermal release.
- Manual or automatic reset mode.
- Class 10A tripping class.
- 690 V rated operational voltage.
- 1000 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- 50–60 Hz operational frequency.
- 1 NO + 1 NC auxiliary contacts.
- IP20 frontal protection.
- M8 screw and flat washer power terminals.
- Operating temperature range of -25 to +60 °C.
- Suitable for operation at altitudes up to 3000 m.
High-Current Thermal Motor Protection
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.
Typical Applications
- Three-phase motor thermal overload protection.
- Higher-current industrial motor starters.
- Motor control systems using compatible Lovato B series contactors.
- Industrial machinery and production equipment.
- Pumps, fans, compressors and material handling equipment.
- Industrial control panels and motor control centres.
