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1SDA076248R1 ABB Homopolar Toroid 250 A E1.2-E6.2 XT7 XT7M
ABB 1SDA076248R1 is a 250 A homopolar toroidal current sensor for earth-fault monitoring of the main power supply grounding conductor in compatible Emax 2 E1.2–E6.2, Tmax XT7 and XT7M protection systems.
£1,847.80
Why Choose the ABB 1SDA076248R1 250 A Homopolar Toroid?
The ABB 1SDA076248R1 is a 250 A homopolar toroidal current sensor designed for earth-fault monitoring and protection applications with compatible ABB Emax 2 and Tmax XT circuit breaker systems. Developed for use with E1.2 to E6.2, XT7 and XT7M equipment, it monitors residual current through the grounding conductor of the main power supply.
The homopolar toroid works with compatible electronic protection systems by detecting current flowing through the earth conductor and providing the measurement required for ground-fault protection functions. Its dedicated ABB design enables integration with supported Emax 2 and Tmax XT protection architectures without requiring individual phase current measurement for this specific earth-conductor function.
With a 250 A sensor rating, the 1SDA076248R1 is part of ABB's range of homopolar toroids for applications requiring external earth-fault current sensing. It is suitable for compatible Emax 2 E1.2–E6.2 and Tmax XT7/XT7M systems as well as supported Ekip UP protection configurations.
Key Advantages
- Dedicated 250 A homopolar toroidal current sensor.
- Designed for grounding-conductor earth-fault monitoring.
- Compatible with ABB Emax 2 E1.2–E6.2 equipment.
- Suitable for ABB Tmax XT7 and XT7M systems.
- Supports compatible Ekip electronic protection architectures.
- Purpose-engineered ABB accessory for dependable protection-system integration.
Key Features
- ABB homopolar toroid for earth-fault current sensing.
- 250 A rated sensor size.
- Monitors the grounding conductor of the main power supply.
- Compatible with Emax 2 E1.2, E2.2, E4.2 and E6.2 platforms.
- Compatible with Tmax XT7 and XT7M.
- Suitable for compatible Ekip UP Protect, Protect+ and Control+ configurations.
- External toroidal current sensing arrangement.
- ABB order code 1SDA076248R1.
Reliable Earth-Fault Current Monitoring
A homopolar toroid measures current associated with the grounding conductor and allows a compatible protection unit to identify earth-fault conditions. This provides an important input to the protection system, helping electrical installations respond appropriately when abnormal current flows to earth.
The ABB 1SDA076248R1 is engineered to operate as part of compatible ABB protection architectures rather than as a standalone protective device. Its compatibility across Emax 2 E1.2–E6.2 and Tmax XT7/XT7M platforms makes it a practical sensing accessory for a range of low-voltage power distribution applications.
Typical Applications
- Earth-fault monitoring in low-voltage power distribution systems.
- ABB Emax 2 E1.2–E6.2 circuit breaker installations.
- ABB Tmax XT7 and XT7M circuit breaker systems.
- Compatible Ekip UP protection installations.
- Industrial power distribution switchboards.
- Commercial and infrastructure electrical distribution systems.
Technical Specifications
| Series | Emax 2 / Tmax XT |
|---|---|
| Order code | 1SDA076248R1 |
| Product type | Homopolar toroidal current sensor |
| Sensor rating | 250 A |
| Measurement function | Earth / ground-fault current sensing |
| Monitored conductor | Main power supply grounding conductor |
| Compatible Emax 2 frames | E1.2, E2.2, E4.2, E6.2 |
| Compatible Tmax XT frames | XT7, XT7M |
| Compatible Ekip UP versions | Protect, Protect+, Control+ |
| Product group | Emax 2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA076248R1 used for?
It is a homopolar toroidal current sensor used to monitor the grounding conductor of the main power supply for earth-fault protection in compatible ABB systems.
What is the rating of the ABB 1SDA076248R1?
The homopolar toroid has a sensor rating of 250 A.
Which ABB Emax 2 breakers are compatible with this toroid?
The 1SDA076248R1 is designed for compatible Emax 2 E1.2 through E6.2 systems.
Is the 1SDA076248R1 compatible with Tmax XT circuit breakers?
Yes. The homopolar toroid is designed for compatible ABB Tmax XT7 and XT7M systems as well as Emax 2 equipment.
What does a homopolar toroid monitor?
It monitors current in the grounding conductor of the main power supply, providing a current measurement to a compatible protection system for earth-fault detection.
Trusted ABB Protection Technology
ABB Emax 2 and Tmax XT protection accessories are engineered to support dependable low-voltage power distribution, with homopolar toroids such as the 1SDA076248R1 providing dedicated earth-fault current sensing for compatible protection systems.
