RF110110 Lovato RF110 overload relay 90-110 amp dol 55kw

Why Choose the RF110110?

Designed for reliable motor protection, the Lovato RF110110 thermal overload relay safeguards three-phase circuits with phase failure/single-phase sensitivity. With manual resetting and three poles, it mounts directly on BF95 to BF150 contactors and covers 90 to 110 A applications. The compact IP20-front unit supports UK panel builders seeking robust, standards-compliant protection and straightforward integration.

Built for demanding environments, this relay offers Ui 690 V and Uimp 8 kV, pollution degree 3, and dependable operation from -20 to 55 °C up to 3000 m. Terminal tightening torque is 3.9 to 3.9 Nm, and the 365 g design suits dense assemblies. Conformity with IEC/EN 60947-1 and 60947-4-1, UL508, and CSA C22.2 n° 14 ensures trusted performance in control panels.

Key Benefits

• Phase failure/single-phase sensitive protection for dependable motor safeguarding.
• Adjustable 90–110 A operational range for correctly matched overload protection.
• Manual reset ensures controlled restarts after fault conditions.
• Direct mounting on BF95 to BF150 cuts wiring and saves space.
• IP20 frontal protection for safer handling in control panels.
• High dielectric strength: Ui 690 V and Uimp 8 kV.
• Compliant with IEC/EN 60947-1/-4-1, UL508, and CSA C22.2 n° 14.
• Wide operating temperature -20 to 55 °C; altitude up to 3000 m.

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: 8 kV
• Terminal tightening torque: 3.9 to 3.9 Nm
• Ith (IEC): 10 A
• Operating temperature: -20 to 55 °C
• Storage temperature: -55 to 80 °C
• Max altitude: 3000 m
• Weight: 365 g

What’s Included

• Lovato RF110110 thermal overload relay
• Manufacturer installation and safety instructions
• Original packaging

Applications

• Three-phase motor overload protection with phase-failure sensitivity
• Installations using Lovato BF95 to BF150 contactors
• Industrial control systems requiring manual reset after fault
• Protection of three-pole motor circuits within 90–110 A range

Safety note: Install and commission by qualified personnel only. Isolate power before work, set the relay within the 90...110 A range as required, observe 3.9 to 3.9 Nm terminal torque, and operate within the stated voltage, IP, and environmental limits.