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1SDA126040R1 ABB E4.3V/MS 4000 A 4-Pole Withdrawable Switch-Disconnector
ABB 1SDA126040R1 is a SACE Emax 3 E4.3V/MS 4000 A four-pole withdrawable switch-disconnector moving part for high-current switching and isolation in low-voltage power distribution systems up to 690 V AC.
£20,341.00
Why Choose the ABB 1SDA126040R1 E4.3V/MS 4000 Switch-Disconnector?
The ABB 1SDA126040R1, product designation E4.3V/MS 4000 4p WMP, is a high-performance four-pole withdrawable switch-disconnector moving part from the ABB SACE Emax 3 range. Designed for demanding low-voltage power distribution systems, it provides high-current switching and isolation where overcurrent protection is coordinated separately within the installation.
With a rated uninterrupted current of 4000 A and a rated operational voltage of 690 V AC, the E4.3V/MS is engineered for major industrial and infrastructure power systems. Its switch-disconnector configuration provides dependable circuit isolation without an integral Ekip electronic overcurrent trip unit, making it suitable for incomers, feeders, bus sections and other high-current switching duties.
The 1SDA126040R1 is supplied as a four-pole withdrawable moving part (WMP) for installation with the corresponding compatible Emax 3 fixed part. This withdrawable architecture facilitates circuit isolation, inspection and maintenance while supporting switchboard applications where serviceability, operational flexibility and continuity are important.
Key Advantages
- High-performance ABB SACE Emax 3 switch-disconnector moving part.
- 4000 A rated uninterrupted current for demanding high-current installations.
- 690 V AC rated operational voltage.
- Provides dependable high-current switching and circuit isolation.
- Four-pole configuration for comprehensive multipole switching.
- Withdrawable moving-part design supports efficient inspection and maintenance.
- Lockable construction supports controlled and secure isolation procedures.
- Optional motor operation supports remote and automated switching applications.
Key Features
- ABB SACE Emax 3 E4.3V/MS series.
- 4000 A rated uninterrupted current (Iu).
- 690 V AC rated operational voltage.
- Switch-disconnector (MS) configuration.
- Four-pole (4P) construction.
- Withdrawable moving-part (WMP) execution.
- Push-button operating mechanism.
- Lockable for controlled circuit isolation.
- No integrated motor operator as standard.
- Optional motor operator available.
- Designed for installation in compatible low-voltage distribution assemblies.
- Part of ABB's advanced SACE Emax 3 air switching platform.
High-Current Switching and Isolation with Emax 3
The E4.3V/MS is configured as a switch-disconnector rather than an air circuit breaker fitted with an Ekip electronic protection release. Its primary function is controlled switching and dependable isolation of high-current circuits, while overload and short-circuit protection can be provided and coordinated by other protective devices within the electrical installation.
The combination of a 4000 A current rating, 690 V AC operational voltage and withdrawable E4.3 architecture makes the 1SDA126040R1 particularly suitable for major distribution circuits. Its removable moving-part design facilitates maintenance and replacement while optional motor operation enables integration into remotely operated power-distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main switchboard switching and isolation.
- High-current incoming and feeder circuits.
- 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 | 1SDA126040R1 |
| Product type | Switch-disconnector moving part |
| Frame | E4.3 |
| Performance level | V |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational voltage | 690 V AC |
| Number of poles | 4 |
| Execution | Withdrawable moving part (WMP) |
| Operating mechanism | Push button |
| Lockable | Yes |
| Integrated motor operator | No |
| Optional motor operator | Yes |
| Suitable for distribution-board installation | Yes |
| Height | 425 mm |
| Width | 551 mm |
| Depth | 383 mm |
| Application | Low-voltage AC power switching and isolation |
| EAN / GTIN | 8056221265928 |
Frequently Asked Questions
What is the ABB 1SDA126040R1?
The ABB 1SDA126040R1 is an E4.3V/MS 4000 A four-pole withdrawable switch-disconnector moving part from the SACE Emax 3 range, designed for high-current switching and isolation in low-voltage power-distribution systems.
What is the rated current and voltage of the ABB 1SDA126040R1?
The E4.3V/MS switch-disconnector has a rated uninterrupted current of 4000 A and a rated operational voltage of 690 V AC.
Does the ABB 1SDA126040R1 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 1SDA126040R1 fixed or withdrawable?
The 1SDA126040R1 is a withdrawable moving part (WMP) designed for installation with the corresponding compatible ABB SACE Emax 3 fixed part, facilitating isolation, inspection and maintenance.
Can the ABB 1SDA126040R1 be motor operated?
The switch-disconnector does not include an integrated motor operator as standard, but optional motor operation is supported for applications requiring remote or automated switching.
High-Current Switching from ABB
ABB SACE Emax 3 switch-disconnectors combine high-current switching capability, dependable circuit isolation and serviceable withdrawable architectures to support industrial, commercial, infrastructure and critical-power distribution systems.
