Why Choose the Lovato RFN383200 Thermal Overload Relay?
The Lovato RFN383200 is a reliable thermal overload relay designed to protect three-phase motors against sustained overload conditions in industrial motor control systems. As part of the Lovato RFN38 thermal overload relay series, it combines adjustable thermal protection with a manual reset configuration for controlled restarting following an overload trip.
The RFN383200 features a three-pole design and a Class 10A tripping characteristic for dependable motor overload protection. It also incorporates one normally open and one normally closed auxiliary contact, allowing the relay to interface with contactor control, signalling and fault indication circuits within industrial machinery and electrical panels.
With an adjustable operational current range of 24–32 A, the RFN383200 is designed for motors operating within this current range. It is intended for use with Lovato BF09–BF38 contactors and provides non-phase-failure-sensitive operation for applications where this characteristic is specified.
Key Advantages
- Reliable thermal overload protection for three-phase motors.
- 24–32 A adjustable operational current range for motor protection settings.
- Class 10A tripping characteristic for defined overload response.
- Manual reset provides controlled restarting following an overload trip.
- Integrated 1 NO + 1 NC auxiliary contacts for control and signalling circuits.
- Designed for use with Lovato BF09–BF38 contactors.
Key Features
- Lovato RFN38 thermal overload relay series.
- 24–32 A adjustable operational current range.
- Three-pole thermal overload relay.
- Class 10A tripping characteristic.
- Manual reset configuration.
- Non-phase-failure-sensitive operation.
- 1 NO + 1 NC auxiliary contacts.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- Designed for use with BF09–BF38 contactors.
Reliable Motor Protection for Industrial Machinery
Thermal overload relays such as the Lovato RFN383200 protect electric motors by responding to sustained overcurrent conditions that can cause excessive heating and damage. Its adjustable 24–32 A current range allows the overload setting to be matched to the protected motor, while the Class 10A characteristic provides a defined thermal tripping response.
The RFN383200 is designed for motor control applications where non-phase-failure-sensitive overload protection and manual resetting are required. Its compatibility with Lovato BF09–BF38 contactors and integrated auxiliary contacts allows straightforward integration into industrial motor starters, machinery and automation control systems.
Typical Applications
- Three-phase motor overload protection.
- Industrial conveyors and material handling systems.
- Pumps, fans and ventilation equipment.
- Compressors, mixers and processing machinery.
- Industrial machinery and automation equipment.
- Motor starter assemblies using Lovato BF09–BF38 contactors.
