Why Choose the Lovato 31RT110 Toroidal Current Transformer?
The Lovato 31RT110 is a high-quality toroidal current transformer designed for accurate residual current measurement and earth leakage monitoring in industrial and electrical distribution systems. As part of the Lovato Electric RT series, it provides reliable current detection when combined with compatible residual current protection and monitoring devices.
This toroidal transformer features a circular core design with a 110 mm internal diameter, allowing conductors or cable assemblies to pass through the transformer for accurate measurement of residual currents. It is suitable for applications requiring dependable monitoring of insulation faults and leakage current conditions.
The Lovato 31RT110 provides a practical solution for switchboards, industrial installations and protection systems where precise residual current sensing is required. Its compact construction allows integration into a wide range of low-voltage electrical systems.
Key Advantages
110 mm toroidal current transformer for residual current monitoring applications.
Accurate detection of earth leakage and insulation fault currents.
Large internal diameter suitable for multiple conductors or larger cables.
Designed for use with compatible Lovato residual current protection devices.
Compact and robust construction for industrial installations.
Improves electrical system monitoring and protection capability.
Key Features
Lovato Electric RT series toroidal transformer.
Model: 31RT110.
110 mm internal diameter.
Toroidal core design for residual current measurement.
Through-feed conductor installation.
Suitable for low-voltage electrical distribution systems.
Designed for connection to residual current relays and monitoring equipment.
Reliable Residual Current Monitoring
Toroidal current transformers such as the Lovato 31RT110 measure the imbalance between conductors passing through the transformer core to detect leakage currents. When connected to a suitable residual current relay, they provide continuous monitoring of electrical insulation conditions.
The Lovato RT series is designed for electrical engineers and installers requiring accurate current measurement, dependable operation and straightforward integration into industrial protection systems.
Typical Applications
Industrial electrical distribution panels.
Residual current monitoring systems.
Low-voltage switchboards.
Machine protection systems.
Industrial control cabinets.
Building and commercial electrical installations.
Technical Specifications
HS Code
85389091
Manufacturer
Lovato Electric
Series
RT
Model
31RT110
Product type
Toroidal current transformer
Application
Residual current and earth leakage monitoring
Transformer type
Toroidal through-feed transformer
Internal diameter
110 mm
Mounting type
Panel mounting
Primary conductor
Pass-through type
Operating frequency
50 / 60 Hz
Frequently Asked Questions
What is the Lovato 31RT110 used for?
The Lovato 31RT110 is used for residual current measurement and earth leakage monitoring in electrical systems.
What is the internal diameter of the 31RT110?
The Lovato 31RT110 has a 110 mm internal diameter for conductor installation.
What type of transformer is the Lovato 31RT110?
The 31RT110 is a toroidal through-feed current transformer designed for residual current monitoring.
Where is the 31RT110 typically installed?
The transformer is typically installed inside electrical distribution boards, switchboards and industrial control panels.
What equipment is the 31RT110 used with?
The transformer is designed for use with compatible residual current relays and electrical protection monitoring devices.
Trusted by Electrical Protection Professionals
Lovato RT series toroidal current transformers are widely used by electrical engineers and system integrators to provide reliable residual current detection and improved electrical protection monitoring.
HS Code
85389091
Manufacturer
Lovato Electric
Series
RT
Model
31RT110
Product type
Toroidal current transformer
Application
Residual current and earth leakage monitoring
Transformer type
Toroidal through-feed transformer
Internal diameter
110 mm
Mounting type
Panel mounting
Primary conductor
Pass-through type
Operating frequency
50 / 60 Hz
No documents available for this product.
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...