RF380250 Lovato RF38 overload relay 1.6-2.5 amp 0.75 kw

Why Choose the RF380250?

The Lovato RF380250 thermal overload relay delivers dependable motor protection with phase failure/single‑phase sensitivity. Covering a 1.6...2.5 A operational current range, it offers manual or automatic resetting to suit your application. This three‑pole device mounts directly on BF09… BF38… contactors for compact, tidy assemblies, and features IP20 frontal protection. It’s an ideal drop‑in for BF motor starters where precise, adjustable overload safeguarding is required.

Engineered for reliability, the RF380250 is rated Ui 690 V with 6 kV impulse withstand and Ith 10 A, meeting IEC/EN 60947-1, IEC/EN 60947-4-1, UL508 and CSA C22.2 n° 14. It provides IP20 frontal protection, pollution degree 3, and operates from -25 to 60 °C, up to 3000 m. Terminals tighten to 2 to 2.5 Nm, and the compact 160 g unit stores safely at -50 to 70 °C.

Key Benefits

• Protects against phase failure and single-phasing for motor safety.
• Adjustable 1.6...2.5 A operational current range.
• Manual or automatic resetting for flexible maintenance workflows.
• Direct mounts to BF09… BF38… contactors for quick installation.
• Three-pole design with IP20 frontal protection.
• Rated insulation 690 V and 6 kV impulse withstand.
• Operates from -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 RF380250 thermal overload relay
• Manufacturer’s datasheet

Applications

• Three-phase motor protection against overload and phase failure.
• Direct-mount motor starters using Lovato BF09… BF38… contactors.
• Control panels requiring adjustable 1.6...2.5 A overload protection.
• OEM equipment needing manual or automatic reset options.

Safety note: Install and set the relay by qualified personnel. Isolate supply before work, set 1.6...2.5 A correctly, tighten terminals to 2 to 2.5 Nm, and operate within the stated environmental limits.