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1SDA073737R1 ABB Ext CS N E2.2 2500A External Neutral Current Sensor
ABB 1SDA073737R1 Ext CS N external neutral current sensor for SACE Emax 2 E2.2 three-pole air circuit breakers, designed for neutral-current measurement and protection in applications up to 2500 A.
£764.06
Why Choose the ABB Ext CS N E2.2 2500A External Neutral Current Sensor?
The ABB Ext CS N E2.2 2500A, order code 1SDA073737R1, is an external current sensor for the neutral conductor designed for ABB SACE Emax 2 E2.2 air circuit breakers. Rated for applications up to 2500 A, it allows the neutral conductor to be measured when the neutral is located outside the circuit breaker.
This accessory is specifically intended for three-pole Emax 2 air circuit breakers. By connecting the external neutral current sensor to the compatible Ekip electronic trip unit, the protection system can monitor the current flowing in the external neutral conductor and extend the breaker protection functions to that conductor.
The 1SDA073737R1 is designed for the ABB SACE Emax 2 E2.2 frame and is specified for neutral-current applications up to 2500 A. It is a loose or configurable Emax 2 accessory manufactured for integration into low-voltage switchboards where the installation architecture requires an externally routed neutral conductor.
Key Advantages
- Genuine ABB SACE Emax 2 current-sensing accessory.
- Designed for an external neutral conductor outside the circuit breaker.
- Suitable for neutral-current applications up to 2500 A.
- Specifically designed for the Emax 2 E2.2 breaker frame.
- Enables the compatible Ekip trip unit to monitor and protect the neutral conductor.
- Suitable for three-pole air circuit-breaker installations with an external neutral.
- Supports comprehensive protection schemes without requiring the neutral conductor to pass through the breaker.
Key Features
- ABB Ext CS N external neutral current sensor.
- 2500 A application rating.
- Designed for SACE Emax 2 E2.2 air circuit breakers.
- Used with three-pole circuit breakers where the neutral conductor is external to the breaker.
- Connects to the compatible Ekip electronic trip unit.
- Provides neutral-current measurement for protection functions.
- Loose or configurable accessory.
- Designed in accordance with the Emax 2 IEC accessory platform.
- ABB order code 1SDA073737R1.
Reliable External Neutral Current Measurement
In a three-pole air circuit-breaker installation, the neutral conductor may run separately from the breaker main poles. An external neutral current sensor measures the current in this conductor and communicates the measurement to the compatible Ekip trip unit, allowing the protection system to take the neutral current into account even though the conductor does not pass through the circuit breaker.
The ABB Ext CS N accessory therefore enables more complete protection of four-wire distribution systems using a three-pole Emax 2 breaker. The 1SDA073737R1 version is matched to the E2.2 frame and applications up to 2500 A, providing a purpose-designed sensing solution for industrial and infrastructure low-voltage switchboards.
Typical Applications
- Three-pole ABB SACE Emax 2 E2.2 air circuit breakers.
- Four-wire distribution systems with an externally routed neutral conductor.
- Industrial low-voltage power-distribution switchboards.
- Main distribution boards and switchgear assemblies.
- Generator and critical-power distribution systems.
- Commercial and infrastructure electrical distribution.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code | 1SDA073737R1 |
| Product type | External neutral current sensor |
| Accessory designation | Ext CS N |
| Current rating | Up to 2500 A |
| Compatible breaker frame | E2.2 |
| Compatible product family | ABB SACE Emax 2 |
| Breaker configuration | Three-pole ACB with external neutral conductor |
| Function | Neutral-conductor current measurement for Ekip protection |
| Configuration type | Loose or configurable |
| Standard | IEC |
| EAN | 8015644776701 |
Frequently Asked Questions
What is the ABB 1SDA073737R1 used for?
The ABB 1SDA073737R1 is an external neutral current sensor used with compatible Emax 2 E2.2 three-pole air circuit breakers to measure current in a neutral conductor located outside the breaker.
What current rating is the ABB Ext CS N E2.2 designed for?
This version of the external neutral current sensor is designed for applications up to 2500 A.
Which Emax 2 breaker frame is compatible with ABB 1SDA073737R1?
The 1SDA073737R1 external neutral current sensor is specifically designed for the ABB SACE Emax 2 E2.2 frame.
Why is an external neutral current sensor required?
It is used when a three-pole circuit breaker has a neutral conductor routed outside the breaker, allowing the compatible Ekip trip unit to measure the neutral current and provide the required neutral-conductor protection.
Does the ABB 1SDA073737R1 connect to the Ekip trip unit?
Yes. The external neutral current sensor is used in conjunction with the compatible Ekip electronic trip unit so that neutral-current information 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 advanced electronic protection to external conductors, helping engineers implement comprehensive and dependable protection schemes in modern low-voltage power-distribution systems.
