RF382500 Lovato RF38 overload relay 20-25 amp dol 11kw star/delta at 22kw

Why Choose the RF382500?

Lovato RF382500 is a three-pole thermal overload relay for motor protection in three-phase applications. Phase failure/single-phase sensitive, it safeguards against loss of phase and imbalance within a 20…25 A operational range. The unit offers manual or automatic resetting and mounts directly on BF09–BF38 contactors for straightforward integration. SKU RF382500 pairs with Lovato BF series contactors for coordinated control.

Engineered to international standards IEC/EN 60947-1 and 60947-4-1, plus UL508 and CSA C22.2 n° 14, the RF382500 features IP20 frontal protection and pollution degree 3. Rated Ui 690 V and Uimp 6 kV, it operates from -25 to 60 °C and stores down to -50 °C. Terminal tightening torque is 2 to 2.5 Nm, with 160 g weight and installation up to 3000 m.

Key Benefits

• Reliable motor protection with phase failure/single-phase sensitivity.
• 20…25 A operating range for appropriate overload protection.
• Manual or automatic reset to suit application needs.
• Direct mounting on BF09–BF38 contactors simplifies integration.
• Three-pole design for three-phase motor circuits.
• Rated insulation 690 V and 6 kV impulse withstand.
• IP20 frontal protection; pollution degree 3 construction.
• Wide operating temperature range -25 to 60 °C.

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 RF382500 thermal overload relay
• Connection terminals as part of the relay body
• Manufacturer product information sheet

Applications

• Three-phase motor protection in BF09–BF38 contactor assemblies
• Motor starters requiring phase-failure/single-phase sensitivity
• Panels needing manual or automatic reset overload protection
• Industrial control systems within -25 to 60 °C operating temperatures
• Installations built to IEC/EN 60947 and UL/CSA requirements

Safety note: Select within the 20…25 A range and ensure BF09–BF38 compatibility; installation and adjustments must be performed by qualified personnel with power isolated, following IEC/EN 60947 and local regulations.