Lovato RFN381400 three-pole thermal motor protection relay with a 9–14 A adjustable operating current range, class 10A tripping characteristic and auxiliary contacts for industrial motor control applications.
£69.09
The Lovato RFN381400 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 dependable operation in motor starter and automation systems.
This motor protection relay features a three-pole thermal release with a class 10A tripping characteristic, helping protect motors from sustained overload conditions. Its adjustable current setting, manual or automatic reset capability and integrated auxiliary contacts provide flexible installation options for industrial control applications.
With an adjustable operating current range of 9–14 A, the RFN381400 is suitable for protecting industrial motors in a variety of applications. The relay includes 1NO + 1NC auxiliary contacts for control and signalling circuits and is designed for direct mounting on compatible Lovato BF contactors.
Thermal motor protection relays such as the Lovato RFN381400 monitor motor current and help prevent damage caused by prolonged overload conditions. Correctly adjusting the relay to the motor's rated current provides effective protection against overheating and excessive current.
The RFN38 series is designed for industrial motor control applications requiring dependable overload protection, flexible resetting and reliable auxiliary signalling. The RFN381400 provides a compact solution for protecting motors in machinery, automation equipment and electrical control panels.
| HS Code | 85364900 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | RFN38 Motor Protection Relays |
| Model | RFN381400 |
| Product type | Thermal motor protection relay |
| Number of poles | 3 |
| Release type | Thermal |
| Adjustable operating current | 9–14 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 |
| Mounting type | Direct mounting on compatible Lovato contactors |
The RFN381400 is a thermal motor protection relay designed to protect three-phase motors against overload conditions in industrial motor control applications.
The relay has an adjustable operating current range of 9–14 A.
The RFN381400 uses a class 10A tripping characteristic for thermal motor overload protection.
The RFN381400 includes 1NO + 1NC auxiliary contacts for control and signalling functions.
The relay supports both manual and automatic reset modes to suit different motor control requirements.
Lovato RFN38 thermal motor protection relays provide adjustable overload protection, reliable operation and integrated control features for industrial motor starter applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...