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RFN381400 - T/O RELAY 9-14A MAN/AUTO

MPN: RFN381400

Special Price £45.60 £38.00 Regular Price £76.00

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Why Choose the RFN381400?

Engineered for dependable motor protection, the Lovato RFN381400 Thermal Overload Relay safeguards three‑phase circuits in the 9...14 A range. This non phase failure/non single‑phase sensitive, 3‑pole device offers manual or automatic reset and mounts directly on BF09–BF38 contactors. With IP20 frontal protection and a compact footprint, it’s a ready‑to‑fit solution for BF series motor starters and control panels.

Rated insulation voltage Ui 690 V and impulse withstand 6 kV deliver resilience in demanding panels. Conforming to IEC/EN 60947‑1 and 60947‑4‑1, plus UL508 and CSA C22.2 n° 14, it operates from −25 to 60 °C up to 3000 m altitude. Terminal screws tighten to 2–2.5 Nm, and the 160 g unit supports efficient installation and maintenance.

Key Benefits

  • Adjustable 9...14 A setting for precise motor protection.
  • Manual or automatic reset to suit application needs.
  • Direct mounting on BF09–BF38 contactors for fast assembly.
  • Three-pole design for three-phase motor circuits.
  • IP20 frontal protection enhances operator safety.
  • Ui 690 V and 6 kV Uimp for high dielectric strength.
  • Conforms to IEC/EN 60947, UL508 and CSA standards.
  • Operates −25 to 60 °C, up to 3000 m altitude.

Technical Specification

  • Number of poles: 3
  • Pollution degree: 3
  • IP degree (frontal): IP20
  • Rated insulation voltage Ui (IEC/EN): 690 V
  • Rated impulse withstand voltage Uimp: 6 kV
  • Terminal tightening torque: 2 to 2.5 Nm
  • Ith (IEC): 10 A
  • Operating temperature: -25 to 60 °C
  • Storage temperature: -50 to 70 °C
  • Max altitude: 3000 m
  • Weight: 160 g

What’s Included

  • Lovato RFN381400 thermal overload relay unit
  • Installation leaflet

Applications

  • Three-phase motor protection with BF09–BF38 contactors
  • Motor starter assemblies in industrial control panels
  • Installations requiring 9...14 A overload protection
  • Systems built to IEC/EN 60947, UL508 and CSA standards
  • Sites operating within −25 to 60 °C and up to 3000 m altitude

Frequently Asked Questions

What operational current range does the RFN381400 cover?
It covers 9...14 A for motor overload protection.
Does this relay support manual and automatic reset?
Yes, it can be reset manually or automatically.
Is the relay phase-failure sensitive?
No, it is non phase failure/non single‑phase sensitive.
Which contactors can it mount on directly?
It mounts directly on BF09–BF38 contactors in the BF series.
Which standards does the RFN381400 conform to?
IEC/EN 60947‑1, IEC/EN 60947‑4‑1, UL508 and CSA C22.2 n° 14.

Safety note: Install and adjust only by qualified personnel. Isolate power before work and operate within the stated ratings and environmental limits.

More Information
Manufacturer Part Number RFN381400
Manufacturer Lovato
Barcode 8013975169735
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