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.
1SDA058935R1 ABB E1B/MS 1250 3P F HR 1250 A Switch-Disconnector
ABB 1SDA058935R1 E1B/MS 1250 3P F HR is a 1250 A three-pole fixed SACE Emax switch-disconnector with rear horizontal terminals for low-voltage power distribution and electrical isolation.
£6,105.62
Why Choose the ABB E1B/MS 1250 3P F HR Switch-Disconnector?
The ABB E1B/MS 1250 3P F HR, order code 1SDA058935R1, is a robust SACE Emax switch-disconnector designed for dependable switching and isolation in low-voltage industrial power distribution systems. Part of the proven ABB SACE Emax E1 series, this three-pole unit provides a rated uninterrupted current of 1250 A for switchboards, distribution panels and industrial electrical installations.
Designed for fixed installation, the E1B/MS 1250 combines durable SACE Emax construction with rear flat horizontal terminals for practical integration into electrical switchboards. Its three-pole configuration is suited to three-phase distribution systems, while the fixed construction provides a robust permanent switching and isolation solution.
With a rated operational current of 1250 A, rated operational voltage of 690 V AC / 250 V DC and rated short-time withstand current of 42 kA for 1 s, the E1B/MS 1250 3P F HR provides dependable performance for demanding power distribution applications. Its compact E1 frame and rear horizontal connections make it well suited to permanent installation in industrial switchgear.
Key Advantages
- Heavy-duty 1250 A switch-disconnector for industrial power distribution.
- Three-pole configuration designed for three-phase electrical systems.
- 690 V AC / 250 V DC operational voltage for versatile distribution applications.
- Rated short-time withstand current of 42 kA for 1 s.
- Rear flat horizontal terminals support practical integration with switchboard busbar systems.
- High mechanical durability of 25,000 operating cycles.
Key Features
- ABB SACE Emax E1B/MS series.
- 1250 A rated uninterrupted current.
- Three-pole configuration.
- Fixed installation format.
- Rear flat horizontal terminal arrangement.
- 690 V rated voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 42 kA for 1 s / 36 kA for 3 s short-time withstand current.
- Electrical durability of 10,000 cycles and mechanical durability of 25,000 cycles.
Reliable Switching and Isolation for Power Distribution
Switch-disconnectors provide controlled switching and electrical isolation within low-voltage distribution systems, allowing circuits and equipment to be separated from the electrical supply when required. The ABB E1B/MS 1250 is engineered for industrial installations where reliable isolation, substantial current-carrying capacity and robust short-time withstand performance are required.
The three-pole configuration is suited to three-phase power distribution, while the fixed mounting arrangement provides a robust permanent solution for switchboard installations. Combined with its 1250 A current rating, rear horizontal connections and durable SACE Emax construction, the E1B/MS 1250 3P F HR is well suited to industrial and commercial low-voltage distribution systems.
Typical Applications
- Industrial low-voltage switchboards.
- Main and sub-distribution panels.
- Three-phase electrical distribution systems.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- High-current switching and isolation duties.
- Electrical isolation within fixed switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Order code / MPN | 1SDA058935R1 |
| Product group | 310513-New Emax |
| Product type | Switch-disconnector |
| Sub-type / frame | E1 |
| Short-circuit performance level | B |
| Rated current (In) | 1250 A |
| Rated operational current (Ie) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated voltage (Ur) | 690 V |
| Rated operational voltage | 690 V AC / 250 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 3 |
| Current type | AC |
| Rated short-time withstand current (Icw) | 42 kA for 1 s / 36 kA for 3 s |
| Installation | Fixed |
| Terminal configuration | Rear flat horizontal |
| Power loss | 150 W |
| Electrical durability | 10,000 cycles at up to 30 cycles per hour |
| Mechanical durability | 25,000 cycles at up to 60 cycles per hour |
| Dimensions (W × H × D) | 296 × 418 × 302 mm |
| Product net weight | 40 kg |
| EAN | 8015644612948 |
| Standards | IEC |
Frequently Asked Questions
What is the ABB E1B/MS 1250 3P F HR used for?
The ABB E1B/MS 1250 3P F HR is a 1250 A switch-disconnector used for switching and electrical isolation in low-voltage industrial and commercial power distribution systems.
What is the current rating of the ABB 1SDA058935R1?
The ABB 1SDA058935R1 has a rated current, rated operational current and rated uninterrupted current of 1250 A.
What voltage is the ABB E1B/MS 1250 rated for?
The E1B/MS 1250 has a rated operational voltage of 690 V AC / 250 V DC, with a rated insulation voltage of 1000 V.
What is the short-time withstand current of the ABB E1B/MS 1250?
The 1SDA058935R1 has a rated short-time withstand current of 42 kA for 1 s and 36 kA for 3 s.
What does 3P F HR mean on the ABB E1B/MS 1250?
3P identifies the three-pole configuration, F denotes fixed installation and HR identifies the rear horizontal terminal arrangement.
Trusted ABB SACE Emax Power Distribution Technology
ABB SACE Emax switch-disconnectors provide robust switching and isolation for demanding low-voltage power distribution applications, supporting dependable operation in industrial switchboards, commercial infrastructure and electrical distribution systems.
