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.
1SDA125911R1 ABB E4.3V/MS 2500 A 3-Pole Fixed Switch-Disconnector
ABB 1SDA125911R1 is a SACE Emax 3 E4.3V/MS 2500 A three-pole fixed switch-disconnector with orientable rear terminals for high-current switching and isolation in low-voltage power distribution systems.
£7,189.13
Why Choose the ABB 1SDA125911R1 E4.3V/MS 2500 Switch-Disconnector?
The ABB 1SDA125911R1, product designation E4.3V/MS 2500 3p FHR, is a high-performance three-pole fixed switch-disconnector from the ABB SACE Emax 3 range. Designed for low-voltage power distribution systems, it provides dependable high-current switching and isolation where circuit-breaker overcurrent protection is provided elsewhere in the installation.
With a rated current of 2500 A, the E4.3V/MS is engineered for demanding industrial and infrastructure applications. Its V performance level provides high short-circuit capability, with a specified short-circuit rating of 150 kA at 415 V AC, making it suitable for switchboards where substantial prospective fault currents may be present.
The 1SDA125911R1 is supplied in a three-pole fixed configuration with orientable rear terminals (HR). The fixed construction provides a robust permanent installation, while the rear terminal arrangement supports practical busbar integration in high-current switchboards and power-distribution assemblies.
Key Advantages
- High-performance ABB SACE Emax 3 switch-disconnector for low-voltage distribution.
- 2500 A rated current for demanding high-current installations.
- Provides reliable switching and isolation without an integral overcurrent trip unit.
- 150 kA short-circuit capability at 415 V AC.
- Three-pole configuration for three-phase power systems.
- Fixed execution provides robust permanent switchboard installation.
- Orientable rear terminals (HR) support flexible busbar arrangements.
- E4.3 frame construction is designed for high-current industrial power-distribution assemblies.
Key Features
- ABB SACE Emax 3 E4.3V/MS series.
- 2500 A rated current.
- Switch-disconnector (MS) configuration.
- Three-pole (3P) construction.
- Fixed (F) execution.
- Orientable rear terminals (HR).
- 150 kA short-circuit rating at 415 V AC.
- Designed for high-current switching and circuit isolation.
- No integral electronic overcurrent trip unit.
- Suitable for integration into low-voltage switchboards and distribution assemblies.
- Part of ABB's advanced SACE Emax 3 air switching platform.
High-Current Switching and Isolation with Emax 3
Unlike an air circuit breaker equipped with an Ekip protection release, the E4.3V/MS is configured as a switch-disconnector. Its primary function is to provide controlled switching and dependable isolation of high-current circuits, while the required overload and short-circuit protection can be coordinated through other protective devices within the electrical installation.
The combination of a 2500 A current rating, V performance level and fixed E4.3 architecture makes the 1SDA125911R1 well suited to major distribution circuits. Its orientable rear terminals provide installation flexibility for busbar connections while retaining the robust construction required for demanding industrial switchboards.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main switchboard isolation and switching.
- High-current feeder isolation.
- Bus-section and bus-coupling applications.
- Manufacturing and process-industry installations.
- Data centres and critical-power infrastructure.
- Generator and transformer distribution systems.
- OEM switchgear and high-current power-distribution assemblies.
Technical Specifications
| Series | SACE Emax 3 |
|---|---|
| ABB order code / Product ID | 1SDA125911R1 |
| Product type | Switch-disconnector |
| Breaker / switch frame | E4.3 |
| Performance level | V |
| Rated current | 2500 A |
| Number of poles | 3 |
| Short-circuit capability | 150 kA at 415 V AC |
| Execution | Fixed |
| Terminal arrangement | Orientable rear terminals (HR) |
| Height | 371 mm |
| Width | 384 mm |
| Depth | 270 mm |
| Application | Low-voltage AC power switching and isolation |
Frequently Asked Questions
What is the ABB 1SDA125911R1?
The ABB 1SDA125911R1 is an E4.3V/MS 2500 A three-pole fixed switch-disconnector from the SACE Emax 3 range, designed for high-current switching and isolation in low-voltage power-distribution systems.
What is the rated current of the ABB 1SDA125911R1?
The E4.3V/MS switch-disconnector has a rated current of 2500 A, making it suitable for major feeders and other high-current distribution circuits.
Does the ABB 1SDA125911R1 have an Ekip trip unit?
No. The MS designation identifies a switch-disconnector, so this product is intended for switching and isolation rather than providing integral electronic overcurrent protection through an Ekip trip unit.
Is the ABB 1SDA125911R1 fixed or withdrawable?
The 1SDA125911R1 is a fixed three-pole switch-disconnector designed for permanent installation in a compatible low-voltage switchboard or distribution assembly.
What terminal arrangement does the ABB 1SDA125911R1 use?
This Emax 3 switch-disconnector uses orientable rear terminals (HR), providing a flexible connection arrangement for high-current busbars and switchboard installations.
High-Current Switching from ABB
ABB SACE Emax 3 switch-disconnectors combine high-current switching capability, robust isolation and flexible installation options to support reliable industrial, commercial, infrastructure and critical-power distribution systems.
