Lovato RTB210 is a 210 mm toroidal current transformer designed for residual-current sensing with compatible Lovato Type B earth leakage relays in industrial and commercial electrical installations.
£612.72
The Lovato RTB210 is a 210 mm toroidal current transformer for Type B earth leakage relays, designed to detect residual leakage currents in industrial and commercial electrical installations. It forms part of the Lovato RTB earth leakage monitoring range and is intended for use with compatible Lovato Type B residual-current monitoring relays.
With its large 210 mm internal diameter, the RTB210 allows multiple conductors or larger cable assemblies to pass through the sensing aperture. The toroid monitors the vector sum of the currents flowing through the conductors and supplies the residual-current measurement signal required by the connected earth leakage relay.
Type B earth leakage monitoring is particularly valuable in installations containing power electronic equipment capable of producing AC, pulsating DC or smooth DC residual currents. When combined with the appropriate Lovato Type B relay, the RTB210 provides a practical sensing solution for modern industrial power systems, drives, converters and other electronically controlled loads.
A toroidal current transformer surrounds the active conductors of the monitored circuit and detects any imbalance between the currents flowing through them. Under normal operating conditions the vector sum is effectively zero; an earth leakage current creates an imbalance that can be detected by the connected residual-current relay.
Type B monitoring is designed for applications where residual currents can include components beyond conventional sinusoidal AC leakage. This makes the Lovato RTB210 particularly relevant to installations incorporating variable speed drives, power converters, UPS equipment and other power electronics when used with the appropriate compatible Type B relay.
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| Monitoring Function | Earth leakage / residual current | |
|---|---|---|
| HS Code | 85389091 | |
| Manufacturer | Lovato Electric | |
| Series | RTB | |
| Model | RTB210 | |
| Product type | Toroidal current transformer for earth leakage relay | |
| Earth leakage monitoring type | Type B | |
| Internal diameter | 210 mm | |
| Measurement principle | Residual / differential current sensing | |
| Application | Earth leakage monitoring | |
| Installation | Power conductors routed through toroidal aperture | |
| Function | Residual-current sensing for compatible external earth leakage relay |
The RTB210 is a 210 mm toroidal current transformer used with a compatible Lovato Type B earth leakage relay to sense residual current in an electrical installation.
The RTB210 has an internal aperture diameter of 210 mm, making it suitable for installations with large conductors or groups of cables.
No. The RTB210 is the toroidal sensing transformer; it must be connected to a compatible external Lovato Type B earth leakage relay to form the monitoring system.
Type B monitoring is suitable for installations where power electronic equipment can generate residual currents containing AC, pulsating DC or smooth DC components.
It is typically installed around the active power conductors in industrial switchboards, distribution systems, machinery and other installations requiring Type B residual-current monitoring.
Lovato Electric earth leakage monitoring components provide dependable residual-current sensing for industrial power distribution and automation systems, with the RTB range supporting Type B applications where modern power electronic loads require comprehensive leakage-current detection.
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