RF826500 Lovato RF82 overload relay 46-65 amp dol 30kw star/delta at 55kw

Why Choose the RF826500?

Protect three-phase motors with the Lovato RF826500 thermal overload relay. This phase failure/single-phase sensitive, 3‑pole motor protection relay offers dependable trip performance across 46…65 A and resets manually for straightforward recovery. Designed for direct mounting on BF40…BF94 contactors, it integrates neatly into control panels while maintaining IP20 frontal protection and robust insulation to 690 V (Ui) with 8 kV impulse withstand (Uimp).

Engineered for reliability in demanding environments, the device meets IEC/EN 60947-1 and 60947-4-1, plus UL508 and CSA C22.2 n° 14. Rated Pollution Degree 3, it operates from −20 to +55 °C up to 3000 m altitude, with IP20 frontal ingress protection. Simple wiring and secure terminals (3.9 Nm torque) support fast installation, while a compact 365 g build suits space‑limited panels across BF series motor starters.

Key Benefits

• Phase failure/single-phase sensitive to safeguard motors from supply faults.
• 46…65 A operational range for dependable three-phase motor protection.
• Manual reset for controlled restarts and maintenance safety.
• Direct mounting on BF40…BF94 contactors reduces assembly complexity.
• IP20 frontal ingress protection improves operator safety in panels.
• High insulation ratings: Ui 690 V, Uimp 8 kV.
• Performs from −20 to +55 °C, up to 3000 m altitude.
• Compliant with IEC/EN 60947-1 and 60947-4-1, UL508 and CSA C22.2.

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 RF826500 thermal overload relay unit
• Manufacturer documentation (installation and safety guidance)

Applications

• Motor protection in three-phase control circuits, 46…65 A range
• Direct-mount overload protection on BF40…BF94 contactors
• Panels requiring phase failure and single-phase sensitivity
• Industrial motor starters needing manual reset after trip

Safety note: Install and commission only by qualified personnel. Isolate power before wiring or adjustments, and ensure application conditions stay within the stated current, temperature and altitude limits.