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RFN381000 – T/O RELAY 6 3-10A MAN/AUTO
Lovato RFN381000 three-pole thermal motor protection relay with a 6.3–10 A adjustable operating current range, class 10A tripping characteristic and direct mounting compatibility with BF09–BF38 contactors.
£41.45
Why Choose the Lovato RFN381000 Motor Protection Relay?
The Lovato RFN381000 is a reliable thermal motor protection relay designed to protect three-phase motors against overload conditions in industrial motor control applications. As part of the Lovato RFN38 motor protection relay range, it provides adjustable thermal protection with direct mounting compatibility for Lovato BF series contactors.
This motor protection relay features a three-pole thermal release with a class 10A tripping characteristic, helping protect motors against sustained overload conditions. Its manual or automatic reset options and integrated auxiliary contacts provide flexible operation in motor starter and industrial control applications.
With an adjustable operating current range of 6.3–10 A, the RFN381000 is suitable for protecting small to medium industrial motors. The relay is designed for direct mounting on Lovato BF09–BF38 contactors and includes test and trip indication functions for easier maintenance and fault identification.
Key Advantages
- Reliable thermal motor overload protection for industrial applications.
- 6.3–10 A adjustable current range for accurate motor protection.
- Three-pole design for three-phase motor circuits.
- Class 10A tripping characteristic for motor overload protection.
- Manual or automatic reset functionality for flexible control system integration.
- Direct mounting on Lovato BF09–BF38 contactors for simplified installation.
Key Features
- Lovato RFN38 motor protection relay series.
- 6.3–10 A adjustable operating current.
- Three-pole thermal overload protection.
- Class 10A tripping characteristic.
- Manual or automatic reset mode.
- Integrated test button and trip indicator.
- 1NO + 1NC auxiliary contacts for control and signalling.
- IP20 frontal protection rating.
- Direct mounting on BF09–BF38 contactors.
Reliable Motor Protection for Industrial Systems
Thermal motor protection relays such as the Lovato RFN381000 monitor motor current and help prevent damage caused by prolonged overload conditions. By disconnecting the motor circuit when excessive current levels occur, they improve equipment reliability and operational safety.
The RFN38 series is designed for industrial motor control applications requiring dependable overload protection, flexible resetting and straightforward contactor mounting. The RFN381000 provides a compact solution for protecting motors within automation systems, machinery and electrical control panels.
Typical Applications
- Industrial motor control panels.
- Pumps and ventilation equipment.
- Conveyor and material handling systems.
- Production and processing machinery.
- Industrial automation equipment.
- OEM motor starter and control assemblies.
Technical Specifications
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| Current Range | 6.3–10 A | |
|---|---|---|
| Compatible With | BF09–BF38 | |
| Device Type | Thermal Overload Relay | |
| Load Voltage | 690 V | |
| Monitoring Function | Temperature / thermistor | |
| Monitored Supply | Single-phase | |
| Reset Type | Manual or automatic | |
| Contacts | 1NO + 1NC | |
| IP Rating | IP20 | |
| HS Code | 85364900 | |
| Manufacturer | Lovato Electric | |
| Series | RFN38 Motor Protection Relays | |
| Model | RFN381000 | |
| Product type | Thermal motor protection relay | |
| Number of poles | 3 | |
| Release type | Thermal | |
| Adjustable operating current | 6.3–10 A | |
| Tripping class | 10A | |
| Reset mode | Manual or automatic | |
| Auxiliary contacts | 1NO + 1NC | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated operational voltage | 690 V | |
| Operational frequency | 0–400 Hz | |
| Protection rating | IP20 | |
| Operating temperature | -25 to 60 °C | |
| Maximum altitude | 3000 m | |
| Mounting type | Direct mounting on BF09–BF38 contactors | |
| Weight | 160 g |
Frequently Asked Questions
What is the Lovato RFN381000 used for?
The RFN381000 is a thermal motor protection relay designed to protect three-phase motors against overload conditions in industrial motor control applications.
What current range does the RFN381000 support?
The relay has an adjustable operating current range of 6.3–10 A.
Which contactors can the RFN381000 be mounted on?
The RFN381000 is designed for direct mounting on Lovato BF09–BF38 contactors.
What tripping class does the RFN381000 use?
The RFN381000 uses a class 10A tripping characteristic for thermal motor overload protection.
What reset options does the RFN381000 provide?
The relay supports both manual and automatic reset modes to suit different motor control configurations.
Trusted by Industrial Control Engineers
Lovato RFN38 thermal motor protection relays provide adjustable overload protection, convenient direct contactor mounting and reliable motor safeguarding for industrial control applications.
