RFN380650 - T/O RELAY 4-6 5A MAN/AUTO

Why Choose the RFN380650?

Lovato’s RFN380650 thermal overload relay delivers dependable three-phase motor protection in the 4 to 6.5 A range. This three-pole, non phase failure/non single-phase sensitive device offers manual or automatic resetting to suit your control strategy. Designed for direct mounting on BF09 to BF38 contactors, it helps streamline panel builds and wiring while maintaining consistent protection across your motor circuits.

Built for industrial reliability, the relay provides IP20 frontal protection, a rated insulation voltage Ui of 690 V and a rated impulse withstand voltage Uimp of 6 kV. With Ith 10 A and an operating temperature range of −25 to 60 °C, it meets IEC/EN 60947-1 and 60947-4-1, UL508 and CSA C22.2 n° 14, supporting robust motor safeguarding in compliant control panels.

Key Benefits

• Adjustable 4–6.5 A range for precise motor overload protection.
• Manual or automatic reset options to match application needs.
• Three-pole design for consistent three-phase motor coverage.
• Direct mounting on BF09–BF38 reduces panel space and wiring.
• IP20 frontal protection enhances operator safety at the terminals.
• 690 V insulation and 6 kV impulse withstand for demanding environments.
• Conforms to IEC/EN 60947-1/-4-1, UL508 and CSA C22.2 n° 14.
• Operating temperature −25 to 60 °C supports varied installation conditions.

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 RFN380650 thermal overload relay
• User instructions
• Manufacturer conformity and standards information
• Protective packaging

Applications

• Motor protection for three-phase machinery within 4–6.5 A range
• Direct-mount assemblies with BF09–BF38 contactors in control panels
• Pumps, fans, conveyors and general-purpose industrial drives
• OEM equipment requiring IEC/EN and UL/CSA conformity
• Maintenance replacements for BF-series motor protection setups

Safety note: Installation and commissioning must be performed by qualified personnel. Always isolate power before work, set the relay to the motor’s rated current, and follow applicable standards and the manufacturer’s instructions.