Lovato RF110110 thermal overload motor protection relay with 90–110 A adjustable current range, phase failure protection and manual reset for industrial motor control systems.
SKU:RF110110MPN:RF110110
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Why Choose the Lovato RF110110 Motor Protection Relay?
The Lovato RF110110 is a reliable thermal overload motor protection relay designed to protect three-phase motors against overload conditions, phase failure and single-phase operation. As part of the proven Lovato RF110 motor protection relay series, it provides dependable protection for industrial motor starters, automation systems and electrical control applications.
This relay features thermal release technology with phase failure sensitivity, a manual reset function and direct mounting capability on Lovato BF95–BF150 contactors. Its compact three-pole design helps create efficient motor starter assemblies while providing reliable protection against excessive current conditions.
With an adjustable operating current range of 90–110 A, a 10A tripping class and a three-phase protection design, the RF110110 is suitable for demanding industrial motor control applications requiring dependable overload protection.
Key Advantages
Reliable thermal overload protection for three-phase motors.
90–110 A adjustable current range for flexible motor protection.
Phase failure and single-phase sensitivity improves motor safety.
Integrated test button and trip indication simplify maintenance procedures.
Key Features
Lovato RF110 motor protection relay series.
90–110 A adjustable operating current.
Three-pole three-phase motor protection.
Thermal release with 10A tripping class.
Manual reset function.
Phase failure detection capability.
1NO + 1NC auxiliary contacts.
Direct mounting for BF95–BF150 contactors.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the Lovato RF110110 protect electric motors by monitoring current levels and disconnecting the motor control circuit when overload conditions occur. This helps reduce the risk of motor damage caused by excessive current, overloads or phase loss.
The RF110 series is designed for industrial motor starters and automation systems where dependable protection, straightforward installation and efficient maintenance are required. Its direct mounting design allows compact motor control solutions using compatible Lovato contactors.
Typical Applications
Industrial motor starters.
Pumps and ventilation systems.
Conveyor and material handling equipment.
Machine automation systems.
Industrial electrical control panels.
Three-phase motor protection applications.
Technical Specifications
HS Code
85364900
Manufacturer
Lovato
Series
RF110
Model
RF110110
Product type
Thermal overload motor protection relay
Operational current
90–110 A
Number of poles
3
Reset mode
Manual
Tripping class
10A
Phase failure detection
Yes
Test button
Yes
Trip indicator
Yes
Auxiliary contacts
1NO + 1NC
Rated insulation voltage
690 V
Rated operational voltage
690 V
Rated impulse withstand voltage
8 kV
Protection rating
IP20
Mounting type
Direct mounting on BF95–BF150 contactors
Operating temperature
-20 to +55 °C
Weight
approx. 392 g
Frequently Asked Questions
What is the Lovato RF110110 used for?
The Lovato RF110110 is a thermal overload relay used to protect three-phase motors against overload conditions, phase failure and single-phase operation.
What current range does the RF110110 support?
The RF110110 supports an adjustable operating current range of 90–110 A.
What type of reset does this relay use?
The relay uses a manual reset function for controlled recovery after a motor overload trip.
Which contactors is the RF110110 compatible with?
The RF110110 is designed for direct mounting on Lovato BF95–BF150 contactors.
Does the relay detect phase failure?
Yes, the RF110110 includes phase failure detection to help protect three-phase motors from phase loss conditions.
Trusted for Industrial Motor Protection
Lovato RF110 motor protection relays are used by industrial engineers and automation professionals to provide reliable overload protection and dependable motor control system performance.
HS Code
85364900
Manufacturer
Lovato
Series
RF110
Model
RF110110
Product type
Thermal overload motor protection relay
Operational current
90–110 A
Number of poles
3
Reset mode
Manual
Tripping class
10A
Phase failure detection
Yes
Test button
Yes
Trip indicator
Yes
Auxiliary contacts
1NO + 1NC
Rated insulation voltage
690 V
Rated operational voltage
690 V
Rated impulse withstand voltage
8 kV
Protection rating
IP20
Mounting type
Direct mounting on BF95–BF150 contactors
Operating temperature
-20 to +55 °C
Weight
approx. 392 g
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Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...