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1SDA073738R1 ABB Ext CS N E4.2 3200A External Neutral Current Sensor
ABB 1SDA073738R1 Ext CS N 3200 A external neutral current sensor for SACE Emax 2 E4.2 three-pole air circuit breakers, enabling neutral-current measurement and protection through a compatible Ekip trip unit.
£861.71
Why Choose the ABB Ext CS N E4.2 3200A External Neutral Current Sensor?
The ABB Ext CS N E4.2 3200A, order code 1SDA073738R1, is an external neutral current sensor designed for ABB SACE Emax 2 E4.2 air circuit breakers. Rated for applications up to 3200 A, it enables current measurement and protection of a neutral conductor located outside the circuit breaker.
This accessory is intended for three-pole Emax 2 air circuit breakers where the neutral conductor does not pass through the breaker itself. By connecting the external neutral current sensor to a compatible Ekip electronic trip unit, neutral-current information can be incorporated into the breaker protection system.
Designed specifically for the ABB SACE Emax 2 E4.2 frame, the 1SDA073738R1 provides a purpose-built solution for high-current four-wire distribution systems using a three-pole breaker arrangement. Its 3200 A rating matches the high-current capabilities of the E4.2 platform and supports comprehensive protection in demanding industrial and infrastructure switchboards.
Key Advantages
- Genuine ABB SACE Emax 2 current-sensing accessory.
- Designed for measuring an external neutral conductor.
- Suitable for applications up to 3200 A.
- Specifically designed for the Emax 2 E4.2 breaker frame.
- Enables neutral-conductor protection through connection to a compatible Ekip trip unit.
- Designed for three-pole air circuit breakers with the neutral conductor outside the breaker.
- Supports comprehensive protection of high-current four-wire distribution systems.
Key Features
- ABB Ext CS N external neutral current sensor.
- 3200 A current rating.
- Designed for SACE Emax 2 E4.2 air circuit breakers.
- Intended for three-pole breaker configurations.
- Measures current in a neutral conductor routed externally to the circuit breaker.
- Interfaces with a compatible Ekip electronic trip unit.
- Provides neutral-current information for circuit-breaker protection functions.
- Product net weight approximately 1 kg.
- ABB order code 1SDA073738R1.
Reliable External Neutral Current Measurement
In a three-pole air circuit-breaker installation, the neutral conductor can be routed independently of the breaker main poles. The ABB external neutral current sensor measures the current flowing through this conductor and provides the measurement to the compatible Ekip trip unit, enabling the protection system to account for neutral current even though the neutral does not pass through the circuit breaker.
The Ext CS N accessory therefore allows engineers to implement neutral-conductor protection in four-wire systems while retaining a three-pole Emax 2 breaker configuration. The 1SDA073738R1 is matched specifically to the E4.2 platform and its 3200 A application range, making it suitable for high-current industrial and infrastructure power-distribution systems.
Typical Applications
- Three-pole ABB SACE Emax 2 E4.2 air circuit breakers.
- Four-wire distribution systems with an external neutral conductor.
- Industrial low-voltage power-distribution switchboards.
- High-current main distribution boards.
- Generator and critical-power distribution systems.
- Commercial and infrastructure switchgear assemblies.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code | 1SDA073738R1 |
| Product type | External neutral current sensor |
| Accessory designation | Ext CS N |
| Current rating | 3200 A |
| Compatible breaker frame | E4.2 |
| Compatible product family | ABB SACE Emax 2 |
| Breaker configuration | Three-pole ACB with external neutral conductor |
| Function | External neutral-conductor current measurement for protection |
| Product net weight | 1 kg |
| Minimum order quantity | 1 piece |
| EAN | 8015644776718 |
Frequently Asked Questions
What is the ABB 1SDA073738R1 used for?
The ABB 1SDA073738R1 is an external neutral current sensor used with compatible Emax 2 E4.2 three-pole air circuit breakers to measure current in a neutral conductor located outside the breaker.
What current rating does the ABB Ext CS N E4.2 support?
The 1SDA073738R1 external neutral current sensor is rated for applications up to 3200 A.
Which Emax 2 circuit breaker is compatible with ABB 1SDA073738R1?
This external neutral current sensor is specifically designed for the ABB SACE Emax 2 E4.2 air circuit-breaker frame.
Why is an external neutral current sensor used?
It allows a compatible Ekip trip unit to monitor the neutral current when a three-pole circuit breaker is installed with the neutral conductor outside the breaker, enabling protection of that neutral conductor.
Does the ABB Ext CS N connect to the Ekip trip unit?
Yes. The external neutral current sensor is designed to connect to a compatible Ekip electronic trip unit so that neutral-current measurement can be incorporated into the circuit-breaker protection system.
Trusted Neutral Protection for ABB SACE Emax 2
ABB SACE Emax 2 current-sensing accessories extend electronic protection to externally routed conductors, helping engineers implement dependable neutral-current protection in demanding low-voltage power-distribution systems.
