RF383200 Lovato RF38 overload relay 24-32 amp dol 15kw star/delta at 30kw

Why Choose the RF383200?

Engineered for reliable motor protection, the Lovato RF383200 thermal overload relay safeguards three-phase motors with phase failure/single‑phase sensitivity. With an adjustable 24…32 A setting range and choice of manual or automatic reset, it mounts directly on BF09–BF38 contactors for a compact, tidy panel. The three‑pole design suits standard installations, helping prevent overheating and nuisance trips while maintaining continuity in demanding industrial environments.

Built for resilience, it features Ui 690 V, Uimp 6 kV and IP20 frontal protection, with Pollution Degree 3 for typical switchgear assemblies. Operating from −25 to 60 °C up to 3000 m altitude, it delivers dependable performance with Ith 10 A and secure terminals tightened to 2–2.5 Nm. Lightweight at 160 g, it meets IEC/EN 60947-1, IEC/EN 60947-4-1, UL508 and CSA C22.2 n° 14.

Key Benefits

• Phase failure/single-phase sensitive protection for three-phase motor reliability.
• Adjustable 24…32 A operational current to match motor full-load settings.
• Manual or automatic resetting to suit process requirements and maintenance.
• Direct mounting on BF09–BF38 contactors for compact, tidy assemblies.
• IP20 frontal protection with Pollution Degree 3 construction.
• High insulation ratings: Ui 690 V and Uimp 6 kV.
• Wide environmental range: −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 RF383200 thermal overload relay
• Installation and operating instructions
• Manufacturer datasheet (online access)
• Protective packaging

Applications

• Motor starters using BF09–BF38 contactors
• Three-phase motor overload protection in control panels
• Installations requiring phase failure/single-phase sensitivity
• Switchgear assemblies within Ui 690 V and IP20 frontal constraints

Safety note: Install and set the relay only by qualified personnel, ensuring adjustments and use remain within the specified current, voltage and environmental ratings for safe operation.