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RF91 Lovato RF9 overload relay BG mini contactors 0.6-1 amp 0.37 kw

RF91 Lovato RF9 overload relay BG mini contactors 0.6-1 amp 0.37 kw

Lovato 11RF91 RF9 thermal overload relay with 0.6–1 A adjustable range designed for BG series mini-contactors and industrial motor protection applications.

SKU: 11RF91Alt SKU: RF91MPN: 11RF91
Price
List Price £60.43 ex VAT
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Manufacturer Lead Time

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Why Choose the Lovato 11RF91 Thermal Overload Relay?

The Lovato 11RF91 is a compact and reliable thermal motor protection relay designed for use with Lovato BG series mini-contactors in industrial motor control and automation applications. It provides dependable overload protection, phase failure detection and manual reset functionality to help protect three-phase motors against operating faults.

This three-pole thermal overload relay features an adjustable current range of 0.6–1 A, a 10A trip class and sensitivity to phase failure and single-phase operation. Its direct mounting design allows straightforward installation onto compatible Lovato BG06, BG09 and BG12 mini-contactors.

With 1NO + 1NC auxiliary contacts, screw terminals and an IP20 protection rating, the Lovato 11RF91 provides a practical motor protection solution for compact control panels, machinery and industrial automation systems.

Key Advantages

  • Compact thermal overload relay for Lovato BG series mini-contactors.
  • Adjustable 0.6–1 A motor protection range for small motor applications.
  • Phase failure and single-phase sensitive protection.
  • Manual reset function for controlled fault recovery.
  • 1NO + 1NC auxiliary contacts for signalling and control circuits.
  • Direct mounting design simplifies installation in motor starters.

Key Features

  • Lovato RF9 thermal overload relay series.
  • Model 11RF91.
  • Three-pole three-phase motor protection relay.
  • Adjustable current range 0.6–1 A.
  • Trip class 10A.
  • Manual reset operation.
  • Phase failure detection.
  • Integrated test button and trip indicator.
  • Direct mounting on BG06, BG09 and BG12 mini-contactors.

Reliable Motor Protection for Industrial Applications

Thermal overload relays protect electric motors by monitoring current levels and disconnecting the motor control circuit when sustained overload conditions occur. The Lovato 11RF91 provides reliable protection for small three-phase motors used in industrial equipment and automation systems.

Designed for use with Lovato BG series contactors, the RF9 range offers a compact solution for motor starters where reliable overload protection, easy installation and straightforward maintenance are required.

Typical Applications

  • Industrial motor starters.
  • Machine control panels.
  • Automation equipment.
  • Pumps and small motor applications.
  • OEM machinery.
  • Industrial electrical control systems.

Technical Specifications

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Mounting Type Direct mount on contactor
Device Type Thermal Overload Relay
Current Range 0.6–1 A
Compatible With BG06, BG09
Trip Class Class 10A
Reset Type Manual
Manufacturer Lovato Electric
Series RF9 Thermal Overload Relays
Model 11RF91
Product type Thermal motor protection relay
Number of poles 3
Adjustable operational current 0.6–1 A
Trip class 10A
Reset mode Manual
Phase failure detection Yes
Auxiliary contacts 1NO + 1NC
Rated insulation voltage 690 V AC
Rated operational voltage 690 V AC
Mounting type Direct mounting on BG06, BG09 and BG12 mini-contactors
Terminal type Screw terminals
Protection rating IP20
Operating temperature -20 to +55 °C
Weight approx. 115 g
Poles 3-pole

Frequently Asked Questions

What is the Lovato 11RF91 used for?

The Lovato 11RF91 is a thermal overload relay used to protect three-phase motors from overload conditions and phase failure.

What current range does the Lovato 11RF91 cover?

The relay provides an adjustable protection range of 0.6–1 A.

What reset method does this overload relay use?

The Lovato 11RF91 uses a manual reset function for controlled restoration after a fault.

Which contactors is the 11RF91 compatible with?

The relay is designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.

What auxiliary contacts are included?

The Lovato 11RF91 includes 1 normally open and 1 normally closed auxiliary contact for signalling and control functions.

Trusted by Industrial Control Engineers

Lovato RF9 thermal overload relays are widely used by machine builders and automation professionals to provide reliable motor protection and efficient control solutions in industrial systems.

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