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2CSG210100R1211 ABB TR5 Toroidal Transformer 210 mm
ABB TR5 is a closed-core 210 mm toroidal transformer designed for residual current and earth leakage monitoring with compatible ABB residual current relays and monitors.
£407.19
Why Choose the ABB TR5 Toroidal Transformer?
The ABB TR5 is a reliable closed-core toroidal transformer designed for residual current monitoring in electrical distribution and industrial installations. With an internal diameter of 210 mm, it provides a practical sensing solution for larger conductors and cable groups used with compatible ABB earth leakage and residual current monitoring devices.
As part of the ABB TR toroidal transformer series, the TR5 detects residual current by surrounding the live conductors of the monitored circuit. Any imbalance between the currents passing through the toroid produces a measurement signal for the connected residual current relay or monitor, enabling effective earth leakage supervision and protection.
The TR5 features a closed core, 210 mm internal diameter, IP20 protection and an operating temperature range of -10 to +70 °C. ABB specifies the transformer for use with compatible RD2/RD3 and ELR residual current relays and monitors, making it suitable for distribution boards, switchboards and industrial electrical systems.
Key Advantages
- Large 210 mm internal diameter accommodates substantial conductors and grouped cables.
- Closed-core construction provides dependable residual current sensing.
- Designed for integration with compatible ABB residual current monitoring devices.
- 300 mA minimum measurable current for residual current monitoring applications.
- IP20 protection rating for installation within suitable electrical enclosures.
- Can be installed in any mounting position for flexible panel design.
Key Features
- ABB TR series toroidal transformer.
- 210 mm internal diameter.
- Closed, non-openable core construction.
- 300 mA minimum measurable current.
- IP20 protection degree.
- -10 to +70 °C operating temperature.
- Suitable for use with compatible ABB RD2/RD3 and ELR devices.
- Designed for residual and earth leakage current monitoring.
Reliable Residual Current Monitoring
Toroidal transformers are used with residual current monitoring equipment to detect an imbalance between the currents flowing through the conductors of an electrical circuit. Under normal operating conditions the vector sum of these currents is effectively zero; leakage to earth creates an imbalance that can be detected by the toroidal transformer and evaluated by the connected monitoring relay.
The ABB TR5's large 210 mm aperture makes it particularly useful where several conductors or large cable sizes must pass through a single sensing transformer. When paired with a compatible ABB residual current monitor or relay, it provides a dependable basis for earth leakage supervision in industrial and commercial electrical distribution systems.
Typical Applications
- Residual current and earth leakage monitoring systems.
- Industrial electrical distribution boards.
- Low-voltage switchboards and control panels.
- Large conductor and multi-cable installations.
- Machinery and industrial electrical systems.
- Commercial and infrastructure electrical distribution.
Technical Specifications
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| Rated Primary Current (A) | 16 A | |
|---|---|---|
| Aperture (mm) | 290 × 290 mm | |
| Device Type | Solid-core CT | |
| Series | TR Toroidal Transformers | |
| ABB order code | 2CSG210100R1211 | |
| Product type | Toroidal transformer | |
| Core type | Closed / non-openable | |
| Internal diameter | 210 mm | |
| Minimum measurable current | 300 mA | |
| Protection rating | IP20 | |
| Operating temperature | -10 to +70 °C | |
| Installation position | Any | |
| Dimensions (H × W × D) | 310 × 290 × 55 mm |
Frequently Asked Questions
What is the ABB TR5 used for?
The ABB TR5 is a toroidal transformer for residual current monitoring, providing a measurement signal to a compatible residual current relay or monitor when earth leakage creates an imbalance in the conductors passing through the toroid.
What is the internal diameter of the ABB TR5?
The TR5 has an internal diameter of 210 mm, allowing large conductors or groups of cables to pass through the transformer.
Is the ABB TR5 an openable toroidal transformer?
No. The TR5 uses a closed, non-openable core. ABB offers separate openable versions within the TR transformer range for installations requiring split-core construction.
What is the minimum measurable current of the TR5?
ABB specifies a 300 mA minimum measurable current for the TR5 toroidal transformer.
Which residual current devices can the ABB TR5 be used with?
The ABB TR toroidal transformer range is designed for use with compatible residual current monitoring equipment, including ABB RD2/RD3 and ELR residual current relays and monitors.
Trusted ABB Residual Current Monitoring Technology
ABB TR toroidal transformers provide dependable residual current sensing for electrical distribution systems, combining a comprehensive range of conductor apertures with straightforward integration into compatible ABB earth leakage and residual current monitoring solutions.
