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1SDA073434R1 ABB E1.2N/MS 800 4p F F Switch-Disconnector
ABB 1SDA073434R1 E1.2N/MS 800 4p F F is an 800 A four-pole fixed SACE Emax 2 air switch-disconnector with front terminals, a 100% rated neutral pole and a 50 kA one-second short-time withstand rating for dependable low-voltage switching and isolation.
£4,429.01
Why Choose the ABB E1.2N/MS 800 4p F F Switch-Disconnector?
The ABB E1.2N/MS 800 4p F F, order code 1SDA073434R1, is a compact four-pole fixed air switch-disconnector from the ABB SACE Emax 2 range. Rated at 800 A, it is designed for dependable switching and isolation in low-voltage power distribution systems where four-pole disconnection, compact installation and strong short-time withstand performance are required.
The E1.2N/MS is a switch-disconnector rather than an automatic circuit breaker equipped with an electronic protection release. Its N-performance construction provides a rated short-time withstand current of 50 kA for 1 s and 30 kA for 3 s, allowing it to withstand substantial prospective fault currents while appropriately coordinated protective devices provide automatic overload and short-circuit protection.
This version combines a fixed four-pole configuration with front terminals for accessible switchboard connections. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and rated impulse withstand voltage of 12 kV, the E1.2N/MS 800 provides robust switching and isolation for industrial, commercial and infrastructure power distribution applications.
Key Advantages
- Compact 800 A four-pole switch-disconnector for low-voltage power distribution systems.
- 50 kA short-time withstand current for 1 s supports demanding coordinated installations.
- 30 kA short-time withstand current for 3 s provides additional withstand capability for selective systems.
- Four-pole construction with a neutral pole rated at 100% of Iu.
- Rated for operation at up to 690 V AC.
- 1000 V AC insulation voltage and 12 kV impulse withstand voltage.
- Provides dependable switching and isolation without an integrated electronic overcurrent trip unit.
- Fixed installation with front terminals provides a straightforward and accessible switchboard configuration.
- Mechanical durability of 20,000 operating cycles.
- Part of the proven ABB SACE Emax 2 low-voltage switching platform.
Key Features
- ABB SACE Emax 2 E1.2N/MS switch-disconnector.
- 800 A rated uninterrupted current.
- Four-pole (4P) configuration.
- 100% rated neutral pole.
- Fixed (F) installation.
- Front (F) main terminals.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 50 kA rated short-time withstand current for 1 s.
- 30 kA rated short-time withstand current for 3 s.
- N short-circuit performance level.
- Switch-disconnector construction for switching and isolation duties.
- No integrated electronic overcurrent protection release.
- Electrical durability of 8,000 cycles.
- Mechanical durability of 20,000 cycles.
- Bolt-type main-circuit terminals.
- M10 recommended main-circuit connection hardware.
- Designed in accordance with applicable IEC requirements.
Compact Four-Pole Switching and Isolation
The ABB Emax 2 E1.2N/MS is designed for electrical installations requiring reliable high-current switching and complete four-pole circuit isolation without integrated automatic overcurrent protection. Its combination of an 800 A continuous current rating, 690 V AC operational capability and short-time withstand ratings of 50 kA for 1 s and 30 kA for 3 s makes it suitable for coordinated distribution systems where separate protective devices provide fault protection.
The fixed four-pole construction, 100% rated neutral pole and front main terminals make the 1SDA073434R1 particularly suitable where all four conductors require switching and isolation. Combined with the compact E1.2 frame, 8,000-cycle electrical durability and 20,000-cycle mechanical durability, it provides a practical solution for dependable switchboard isolation.
Typical Applications
- Main and secondary isolation in low-voltage switchboards.
- Four-pole electrical distribution systems requiring neutral switching.
- Industrial power distribution installations.
- Commercial building electrical distribution.
- Bus-section and bus-coupler switching applications.
- Manufacturing plants and process facilities.
- Data centres and critical power infrastructure.
- Utility and infrastructure distribution systems.
- Switchboards using separate upstream or downstream overcurrent protection.
- Applications requiring compact fixed front-connected switching and isolation.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Product group | Emax2 Air Circuit Breaker |
| Frame / type | E1.2N/MS |
| Order code / MPN | 1SDA073434R1 |
| EAN / GTIN | 8015644772840 |
| Product type | Air switch-disconnector |
| Product main type | SACE Emax 2 |
| Sub-type | E1.2 |
| Rated current (In) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Number of poles | 4P |
| Neutral pole current | 100% of Iu |
| Current type | AC |
| Rated voltage (Ur) | 690 V |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated short-time withstand current (Icw), 1 s | 50 kA |
| Rated short-time withstand current (Icw), 3 s | 30 kA |
| Short-circuit performance level | N |
| Protection release | None – switch-disconnector configuration |
| Electrical durability at Ue ≤ 440 V | 8,000 cycles |
| Electrical durability at Ue 500–690 V | 8,000 cycles |
| Electrical operating frequency | 30 cycles per hour |
| Mechanical durability | 20,000 cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Power loss | 50 W |
| Installation | Fixed |
| Version | F |
| Terminal connection | Front (F) |
| Terminal type | Bolt |
| Recommended main-circuit screw | M10 |
| Main-circuit tightening torque | 45 N·m |
| Standard | IEC |
| Product net width | 280 mm |
| Product net height | 296 mm |
| Product net depth | 183 mm |
| Product net weight | 16 kg |
Frequently Asked Questions
What is the ABB 1SDA073434R1 used for?
The ABB 1SDA073434R1 is an 800 A four-pole Emax 2 switch-disconnector designed for switching and isolation duties in low-voltage electrical distribution systems.
Is the ABB E1.2N/MS 800 a circuit breaker or a switch-disconnector?
The E1.2N/MS 800 is a switch-disconnector. It provides switching and isolation without an integrated electronic overcurrent protection release, so appropriately rated separate protective devices are required where automatic overload and short-circuit protection is needed.
What is the short-time withstand rating of the ABB 1SDA073434R1?
The E1.2N/MS 800 has a rated short-time withstand current of 50 kA for 1 s and 30 kA for 3 s, supporting use in coordinated low-voltage distribution systems with substantial prospective fault currents.
What does F F mean in E1.2N/MS 800 4p F F?
The first F identifies the fixed installation version, while the second F identifies the front terminal connection arrangement. The 1SDA073434R1 is therefore a fixed E1.2 switch-disconnector with front main terminals.
What are the dimensions of the ABB 1SDA073434R1?
The ABB 1SDA073434R1 measures approximately 280 mm wide, 296 mm high and 183 mm deep, with a product net weight of approximately 16 kg.
Trusted Switching and Isolation for Low-Voltage Power Systems
ABB SACE Emax 2 switch-disconnectors combine compact construction, dependable current-carrying capability and strong short-time withstand performance for reliable switching and isolation in industrial, commercial, infrastructure and critical low-voltage power distribution systems.
