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1SDA055057R1 ABB TA External Neutral 400A T5 Current Transformer
ABB 1SDA055057R1 is a 400 A external neutral current transformer designed for neutral-current sensing in compatible ABB SACE Tmax T5 circuit breaker protection configurations.
£288.41
Why Choose the ABB 1SDA055057R1 T5 External Neutral CT?
The ABB 1SDA055057R1 is a genuine 400 A external neutral current transformer designed for compatible ABB SACE Tmax T5 circuit breaker applications. Identified as TA EXT NEUTRAL 400A T5, it provides external neutral current sensing for suitable Tmax T5 protection configurations.
Where the neutral conductor is external to the circuit breaker's main poles, an external neutral CT enables a compatible protection system to measure the current flowing through that neutral conductor. The 1SDA055057R1 has a 400 A rating and is specifically intended for the ABB SACE Tmax T5 product class.
As an original ABB Tmax accessory, the 1SDA055057R1 provides a purpose-designed component for compatible T5 installations rather than relying on a generic current transformer. It is suitable for industrial switchboards, distribution panels and OEM low-voltage assemblies requiring external neutral current measurement as part of the specified circuit breaker protection arrangement.
Key Advantages
- Genuine ABB SACE Tmax T5 accessory.
- Provides external neutral current sensing for compatible protection configurations.
- 400 A current rating.
- Purpose-designed for compatible ABB SACE Tmax T5 applications.
- Supports protection arrangements where the neutral conductor requires separate current measurement.
- Suitable for professional low-voltage switchboard and power distribution installations.
Key Features
- External neutral current transformer.
- ABB designation: TA EXT NEUTRAL 400A T5.
- Designed for the ABB SACE Tmax T5 platform.
- Rated current: 400 A.
- External neutral current measurement application.
- Loose or configurable ABB accessory.
- Suitable for the SACE Tmax T product class.
- IEC compliant product configuration.
400 A External Neutral Current Sensing for Tmax T5
An external neutral current transformer is used where the protection arrangement of a compatible circuit breaker requires current information from a neutral conductor located outside the breaker's directly measured poles. The CT measures the neutral current so that the associated compatible protection system can include the neutral conductor in its monitoring and protection functions.
The ABB 1SDA055057R1 is specifically rated at 400 A for compatible Tmax T5 external-neutral applications. The external neutral CT must be matched with the appropriate circuit breaker, electronic protection release and required connection accessories specified for the installation.
Typical Applications
- ABB SACE Tmax T5 circuit breaker installations requiring external neutral current sensing.
- Low-voltage power distribution switchboards.
- Industrial electrical distribution systems.
- Neutral-current measurement in compatible protection configurations.
- Main and sub-distribution panels.
- OEM switchgear using compatible ABB Tmax T5 protection systems.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| ABB order code | 1SDA055057R1 |
| Product type | External neutral current transformer |
| ABB description | CI 400 A FOR EXTERNAL NEUTRAL T5 |
| Application | External neutral current sensing |
| Rated current | 400 A |
| Suitable for | Tmax T5 |
| Suitable product class | SACE Tmax T |
| Configuration type | Loose or configurable |
| Standard | IEC |
| Product net weight | 0.41 kg |
| EAN | 8015644562076 |
| Customs tariff number | 85389099 |
| Country of origin | Italy |
| ABB product group | 310511-T-Max T4 - T8 |
Frequently Asked Questions
What is the ABB 1SDA055057R1 used for?
The ABB 1SDA055057R1 is a 400 A external neutral current transformer used to measure neutral current in compatible ABB SACE Tmax T5 circuit breaker protection configurations.
What is the current rating of the ABB 1SDA055057R1?
The ABB 1SDA055057R1 external neutral current transformer has a rated current of 400 A.
What does TA EXT NEUTRAL mean?
TA EXT NEUTRAL identifies an external neutral current transformer used to provide neutral-current measurement for a compatible circuit breaker protection system.
Which ABB circuit breaker family is the 1SDA055057R1 designed for?
The ABB 1SDA055057R1 is designed for compatible ABB SACE Tmax T5 circuit breaker applications.
What is the EAN for ABB 1SDA055057R1?
The EAN for the ABB 1SDA055057R1 TA EXT NEUTRAL 400A T5 is 8015644562076.
Trusted ABB Circuit Breaker Protection Accessories
ABB SACE Tmax accessories provide purpose-designed components for compatible moulded case circuit breaker installations, supporting coordinated current measurement and protection configurations in industrial switchboards and low-voltage power distribution systems.
