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1SDA073439R1 ABB E1.2B/MS 1600 4p F F Switch-Disconnector
ABB 1SDA073439R1 E1.2B/MS 1600 4p F F is a fixed four-pole 1600 A SACE Emax 2 switch-disconnector with front terminals for low-voltage power distribution and isolation applications.
£5,159.90
Why Choose the ABB E1.2B/MS 1600 4p F F Switch-Disconnector?
The ABB E1.2B/MS 1600 4p F F, order code 1SDA073439R1, is a high-performance four-pole air switch-disconnector designed for isolation and switching duties in low-voltage power distribution systems. As part of the advanced ABB SACE Emax 2 E1.2 series, it combines a compact frame with a rated uninterrupted current of 1600 A for demanding industrial and commercial electrical installations.
This E1.2B/MS configuration is supplied as a fixed four-pole device with front terminals, making it suitable for integration into low-voltage switchboards and power distribution assemblies. The MS switch-disconnector design provides dependable circuit isolation, while the Emax 2 platform supports a broad range of accessories and operating mechanisms for flexible switchboard engineering.
With a rated operational voltage of 690 V AC and a rated short-time withstand current of 42 kA for 1 s, the E1.2B/MS 1600 is engineered for high-current distribution applications where reliable switching, isolation and short-time withstand capability are required.
Key Advantages
- High-current 1600 A switch-disconnector for low-voltage power distribution.
- Four-pole configuration for switching and isolating three-phase systems with neutral.
- Fixed installation simplifies integration into switchboards and distribution assemblies.
- Front terminals provide a practical connection arrangement for switchboard construction.
- Rated operational voltage up to 690 V AC.
- Rated short-time withstand current of 42 kA for 1 s.
- Part of ABB's compact and versatile SACE Emax 2 low-voltage power distribution platform.
Key Features
- ABB SACE Emax 2 E1.2B/MS series.
- 1600 A rated uninterrupted current.
- Four-pole switching configuration.
- 690 V AC rated operational voltage.
- 42 kA short-time withstand current for 1 s.
- Fixed version for permanent switchboard installation.
- Front terminal connection.
- Switch-disconnector construction for circuit switching and isolation.
- Compatible with the modular accessory ecosystem of the ABB Emax 2 platform.
Reliable Switching and Isolation for Power Distribution
Switch-disconnectors provide a means of switching and isolating electrical circuits so that sections of a low-voltage installation can be safely separated from the supply when required. In high-current distribution systems, robust current-carrying and short-time withstand capability are particularly important for dependable switchboard operation.
The ABB SACE Emax 2 platform is engineered for modern low-voltage distribution assemblies where compact dimensions, high electrical performance and flexible installation are required. The fixed E1.2B/MS configuration provides a practical solution for main and distribution switching duties while allowing system designers to utilise the extensive Emax 2 accessory platform.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Main incoming and distribution isolation duties.
- Manufacturing and process plant switchboards.
- Power distribution assemblies requiring four-pole isolation.
Technical Specifications
| Series | SACE Emax 2 E1.2 |
|---|---|
| ABB order code | 1SDA073439R1 |
| Product type | Air switch-disconnector |
| Frame / subtype | E1.2 |
| Short-circuit performance level | B |
| Rated uninterrupted current (Iu) | 1600 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated short-time withstand current (Icw) | 42 kA for 1 s |
| Number of poles | 4 |
| Version | Fixed |
| Terminal connection | Front |
| Terminal type | Bolt |
| Dimensions (W × H × D) | 280 × 296 × 183 mm |
| Weight | approx. 16 kg |
| EAN / GTIN | 8015644772895 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA073439R1 used for?
The ABB 1SDA073439R1 is a 1600 A four-pole switch-disconnector designed for switching and isolation duties in low-voltage power distribution systems.
What is the rated current of the E1.2B/MS 1600 4p F F?
The device has a rated uninterrupted current of 1600 A.
How many poles does the ABB 1SDA073439R1 have?
This model has four poles, making it suitable for applications requiring switching and isolation of three phases and neutral.
Is the E1.2B/MS 1600 a fixed or withdrawable device?
ABB 1SDA073439R1 is a fixed version of the E1.2B/MS switch-disconnector and is supplied with front terminals.
What is the rated operational voltage?
The E1.2B/MS 1600 4p F F has a rated operational voltage of 690 V AC.
What is the short-time withstand current of this switch-disconnector?
The device has a rated short-time withstand current of 42 kA for 1 s.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 2 devices are widely specified for low-voltage power distribution systems where dependable switching, compact switchboard integration and robust electrical performance are required.
