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1SDA128901R1 ABB E4.3V 4000 Ekip Aware LSIG 4P Fixed Air Circuit Breaker
ABB 1SDA128901R1 is a 4000 A four-pole fixed SACE Emax 3 E4.3V air circuit breaker with Ekip Aware LSIG electronic protection, HR orientable rear terminals and 150 kA ultimate short-circuit breaking capacity at 440 V AC.
£26,726.63
Why Choose the ABB 1SDA128901R1 E4.3V 4000 Ekip Aware LSIG Air Circuit Breaker?
The ABB 1SDA128901R1 is a high-performance SACE Emax 3 E4.3V air circuit breaker (ACB) designed for protection and switching in demanding low-voltage power distribution systems. Rated at 4000 A, this four-pole circuit breaker combines the ABB E4.3 frame with an advanced Ekip Aware LSIG electronic trip unit for comprehensive circuit protection.
The Ekip Aware LSIG trip unit provides long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection, helping protect electrical installations against overloads, short circuits and earth faults. The E4.3V performance level provides an ultimate short-circuit breaking capacity of 150 kA at 440 V AC together with a short-time withstand current of 100 kA for 1 s.
This configuration is a four-pole fixed circuit breaker with HR orientable rear terminals, providing a robust connection arrangement for high-current switchboards. Its 4000 A current rating and high fault-breaking performance make it particularly suitable for main distribution, industrial power systems and other critical low-voltage installations.
Key Advantages
- High-performance ABB SACE Emax 3 E4.3V air circuit breaker.
- 4000 A rated current for demanding high-current distribution systems.
- 150 kA ultimate short-circuit breaking capacity at 440 V AC.
- 100 kA short-time withstand current for 1 s.
- Advanced Ekip Aware LSIG electronic protection.
- Four-pole fixed configuration for low-voltage power distribution applications.
- HR orientable rear terminals provide flexible switchboard connection arrangements.
Key Features
- ABB SACE Emax 3 E4.3V air circuit breaker.
- 4000 A rated current.
- 4-pole configuration.
- Fixed execution.
- HR orientable rear terminals.
- Ekip Aware LSIG electronic trip unit.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- High-breaking-capacity V performance level.
High-Performance Protection for Low-Voltage Distribution
Air circuit breakers such as the ABB SACE Emax 3 E4.3V provide switching and protection for high-current low-voltage electrical distribution systems. The V performance level delivers substantial short-circuit interruption capability, making this breaker suitable for installations with high prospective fault currents.
The Ekip Aware LSIG electronic trip unit combines four protection functions to provide comprehensive fault protection and support effective coordination within the electrical distribution system. Together with its 4000 A rating, fixed construction and orientable rear terminals, the E4.3V provides a powerful solution for main switchboards and critical industrial or commercial power distribution.
Typical Applications
- Main low-voltage switchboards and power distribution assemblies.
- Industrial electrical distribution systems.
- High-current incomers and feeder circuits.
- Commercial and infrastructure power distribution.
- Data centres and critical-power installations.
- Manufacturing and process facilities.
- Applications requiring high short-circuit breaking capacity and LSIG protection.
Technical Specifications
| Product group | Emax 3 |
|---|---|
| Series | SACE Emax 3 |
| Order code | 1SDA128901R1 |
| MPN | 1SDA128901R1 |
| EAN | 8056221305303 |
| Product type | Air circuit breaker |
| Frame size | E4.3 |
| Performance level | V |
| Rated current | 4000 A |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal configuration | HR orientable rear terminals |
| Trip unit | Ekip Aware LSIG |
| Protection functions | Long-time, short-time, instantaneous and ground-fault (LSIG) |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 150 kA |
| Short-time withstand current (Icw, 1 s) | 100 kA |
Frequently Asked Questions
What is the ABB 1SDA128901R1 used for?
The ABB 1SDA128901R1 is a 4000 A four-pole SACE Emax 3 air circuit breaker designed for switching and protection of high-current low-voltage electrical distribution systems.
What is the rated current of the ABB 1SDA128901R1?
The circuit breaker has a rated current of 4000 A.
What protection functions does Ekip Aware LSIG provide?
The Ekip Aware LSIG trip unit provides long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection.
What is the breaking capacity of the E4.3V 4000?
The E4.3V has an ultimate short-circuit breaking capacity of 150 kA at 440 V AC and a short-time withstand current of 100 kA for 1 s.
Is the ABB 1SDA128901R1 fixed or withdrawable?
The 1SDA128901R1 is a fixed four-pole air circuit breaker equipped with HR orientable rear terminals.
ABB Emax 3 Power Protection
ABB SACE Emax 3 air circuit breakers combine advanced electronic protection with high short-circuit performance, providing dependable switching and protection for demanding low-voltage electrical distribution systems.
