Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ABB SACE Emax 3 E4.3S 4000 ACB 3 Pole 4000A 85kA Ekip Aware LSI Withdrawable Moving Part
ABB 1SDA125512R1 E4.3S 4000 Ekip Aware LSI three-pole air circuit breaker with a 4000 A rated current for high-current low-voltage power distribution.
£18,282.92
Why Choose the ABB E4.3S 4000 Ekip Aware LSI 3p WMP?
The ABB 1SDA125512R1 is a high-capacity SACE Emax 3 air circuit breaker configured as an E4.3S 4000 Ekip Aware LSI three-pole WMP unit for reliable protection and switching in low-voltage power distribution systems. As part of the advanced ABB SACE Emax 3 air circuit breaker series, it combines a 4000 A rated current with an Ekip Aware electronic release and LSI protection functions for demanding electrical distribution applications.
This circuit breaker is designed for industrial and commercial power distribution where dependable circuit protection, switching and high short-circuit performance are required. The Ekip Aware electronic release provides configurable LSI protection functionality, while the Emax 3 platform is designed for integration into modern low-voltage switchboards and power distribution installations.
With a 4000 A rated current, three-pole configuration and Ekip Aware LSI protection, the E4.3S 4000 provides a high-performance solution for demanding distribution applications. The E4.3S configuration has a published 85 kA Icu at 400 V, while the breaker is rated for operation on systems up to 690 V AC.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 4000 A rated current for high-current electrical distribution systems.
- Three-pole configuration for three-phase power distribution applications.
- Integrated Ekip Aware electronic release for advanced circuit protection.
- LSI protection functions providing long-time, short-time and instantaneous overcurrent protection.
- High short-circuit breaking capacity for demanding industrial and commercial switchboards.
Key Features
- ABB SACE Emax 3 air circuit breaker series.
- E4.3S 4000 breaker frame with 4000 A rated current.
- Ekip Aware electronic release.
- LSI protection functions for long-time, short-time and instantaneous protection.
- Three-pole configuration.
- WMP withdrawable configuration for Emax 3 switchboard applications.
- 85 kA Icu at 400 V short-circuit breaking capacity.
- 690 V AC rated voltage for high-voltage low-voltage distribution applications.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax 3 E4.3S provide high-capacity protection and switching for electrical distribution systems. The Ekip Aware electronic release provides LSI protection functionality, helping protect electrical circuits against overloads, short-duration fault currents and high instantaneous overcurrent conditions.
The Emax 3 E4.3S platform is designed for demanding low-voltage applications where high interrupting capability is required. Its 4000 A configuration and adjustable protection thresholds allow the breaker to be incorporated into main distribution boards, industrial switchboards and other high-current electrical installations.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Commercial electrical distribution installations.
- High-current feeder and incoming circuit protection.
- Transformer and generator protection systems.
- Manufacturing facilities and industrial plants.
- Power distribution equipment and switchgear assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | ACB | |
|---|---|---|
| Current | 4000 A | |
| Poles | 3-pole | |
| Phase | Three Phase | |
| Breaking Capacity | 85 kA | |
| Trip Unit | LSI | |
| Application | Power distribution | |
| Mounting Type | Withdrawable | |
| Manufacturer | ABB | |
| Series | SACE Emax 3 | |
| Model | E4.3S 4000 Ekip Aware LSI 3p WMP | |
| Order code | 1SDA125512R1 | |
| Product type | Air circuit breaker | |
| Rated current Iu | 4000 A | |
| Number of poles | 3 | |
| Release unit | Ekip Aware electronic release | |
| Protection functions | LSI | |
| Rated voltage | 690 V AC | |
| Rated ultimate short-circuit breaking capacity Icu at 400 V | 85 kA | |
| Overload release adjustment range | 1600–4000 A | |
| Short-time short-circuit release adjustment range | 2400–40000 A | |
| Instantaneous short-circuit release adjustment range | 6000–60000 A | |
| Power loss | 900 W | |
| Protection rating | IP30 | |
| EAN | 8056221260640 | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA125512R1 used for?
The ABB 1SDA125512R1 is an E4.3S 4000 SACE Emax 3 air circuit breaker designed for high-current low-voltage power distribution and circuit protection applications.
What is the rated current of this circuit breaker?
The E4.3S 4000 has a 4000 A rated current.
How many poles does the ABB 1SDA125512R1 have?
The ABB 1SDA125512R1 is configured as a three-pole circuit breaker.
What protection release does the breaker use?
The breaker uses an Ekip Aware electronic release with LSI protection functions for long-time, short-time and instantaneous overcurrent protection.
What is the breaking capacity of the E4.3S 4000?
The E4.3S 4000 has a published 85 kA Icu at 400 V and is rated for systems up to 690 V AC.
Trusted by Power Distribution Engineers Worldwide
ABB SACE Emax 3 air circuit breakers are designed to provide dependable high-current circuit protection, advanced electronic release functionality and reliable switching for demanding low-voltage power distribution systems.
