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11RFNA91V5 - T/O RELAY RFNA9 0.9-1.5A

11RFNA91V5 – T/O RELAY RFNA9 0.9-1.5A

Lovato 11RFNA91V5 is a three-pole Class 10A thermal overload relay with a 0.9–1.5 A adjustable operational current range, automatic resetting and direct mounting on BG06, BG09 and BG12 mini-contactors.

SKU: 11RFNA91V5Alt SKU: RFNA91V5MPN: 11RFNA91V5
Price
List Price £74.48 ex VAT
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£74.48
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Why Choose the Lovato 11RFNA91V5 Thermal Overload Relay?

The Lovato 11RFNA91V5 is a three-pole thermal motor protection relay designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors. With an adjustable operational current range of 0.9–1.5 A, it provides thermal overload protection for compatible three-phase motor control applications.

Part of the Lovato 11RFNA9 motor protection relay range, the 11RFNA91V5 features automatic resetting, a test button and trip indication. The relay is specified as a non-phase-failure/non-single-phase-sensitive version and incorporates one normally open and one normally closed auxiliary contact for integration into motor control circuits.

The relay has a 690 V rated operational voltage, 690 V rated insulation voltage and 8 kV rated impulse withstand voltage. Its Class 10A tripping characteristic and compact direct-mounting format make it suitable for motor starters based on compatible Lovato BG mini-contactors.

Key Advantages

  • Adjustable 0.9–1.5 A operational current range for motor overload protection.
  • Direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.
  • Three-pole thermal overload relay for three-phase applications.
  • Automatic reset functionality.
  • Integrated test button and trip indicator.
  • Class 10A tripping characteristic.
  • Includes 1 NO + 1 NC auxiliary contacts.
  • IP20 frontal protection for installation within suitable electrical enclosures.

Key Features

  • Lovato 11RFNA9 thermal overload relay series.
  • 0.9–1.5 A adjustable operational current.
  • Three-pole configuration.
  • Thermal release.
  • Automatic reset mode.
  • Class 10A tripping class.
  • 690 V rated operational voltage.
  • 690 V rated insulation voltage.
  • 8 kV rated impulse withstand voltage.
  • Operational frequency range of 0–400 Hz.
  • 1 NO + 1 NC auxiliary contacts.
  • M4 screw and washer power terminals.
  • Operating temperature range of -20 to +55 °C.

Thermal Overload Protection for Three-Phase Motors

Thermal overload relays are used in motor control circuits to respond to sustained overcurrent conditions that can cause excessive motor heating. Selecting a relay with an adjustment range appropriate for the motor allows the overload setting to be matched to the required operating current.

The Lovato 11RFNA91V5 combines a 0.9–1.5 A adjustable current range with Class 10A tripping and automatic resetting. Its direct mounting on compatible BG06, BG09 and BG12 mini-contactors supports compact motor starter assemblies for industrial machinery and control-panel applications.

Typical Applications

  • Three-phase motor thermal overload protection.
  • Motor starters using Lovato BG06, BG09 or BG12 mini-contactors.
  • Industrial machinery control panels.
  • Compact motor control assemblies.
  • OEM automation and machine-building equipment.
  • Industrial motor switching and protection systems requiring automatic reset.

Technical Specifications

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Load Voltage 690 V
Monitored Supply Single-phase
Reset Type Automatic
Manufacturer Lovato Electric
Series 11RFNA9
Model 11RFNA91V5
Product type Thermal overload relay
Number of poles 3
Release type Thermal
Operational current range 0.9–1.5 A
Tripping class 10A
Reset mode Automatic
Test button Yes
Trip indicator Yes
Auxiliary contacts 1 NO + 1 NC
Rated operational voltage 690 V
Rated insulation voltage (Ui) 690 V
Rated impulse withstand voltage (Uimp) 8 kV
Operational frequency 0–400 Hz
Conventional free-air thermal current (Ith), auxiliary circuit 10 A at ≤40 °C
Frontal protection rating IP20
Overvoltage category III
Pollution degree 3
Power terminal type Screw and washer
Power terminal screw M4
Power terminal tightening torque 2.3 Nm
Auxiliary terminal screw M3.5
Maximum auxiliary flexible conductor section 2.5 mm²
Auxiliary terminal tightening torque 1 Nm
Operating temperature -20 to +55 °C
Storage temperature -55 to +70 °C
Mounting Direct mounting on BG06, BG09 and BG12 mini-contactors
Weight 115 g
Package dimensions 65 × 46 × 90 mm
Package volume 269.1 cm³
Quantity per package 1
EAN13 8013975020685
HS code 85364900
Conformity IEC/EN 60947-1, IEC/EN 60947-4-1, UL508, CSA C22.2 No. 14
Contacts 1NO + 1NC

Frequently Asked Questions

What current range does the Lovato 11RFNA91V5 cover?

The Lovato 11RFNA91V5 has an adjustable operational current range of 0.9–1.5 A.

Which contactors are compatible with the Lovato 11RFNA91V5?

The 11RFNA91V5 is designed for direct mounting on Lovato BG06, BG09 and BG12 mini-contactors.

Does the Lovato 11RFNA91V5 reset automatically?

Yes. The 11RFNA91V5 uses an automatic reset mode and also incorporates a test button and trip indicator.

What tripping class does the Lovato 11RFNA91V5 use?

The Lovato 11RFNA91V5 has a Class 10A tripping characteristic.

What auxiliary contacts does the Lovato 11RFNA91V5 include?

The 11RFNA91V5 incorporates one normally open and one normally closed auxiliary contact.

Reliable Lovato Motor Protection

Lovato 11RFNA9 thermal overload relays provide compact motor protection for compatible BG mini-contactor assemblies, combining adjustable thermal overload protection with automatic resetting, test functionality and trip indication.

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