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1SDA059021R1 ABB E3H/E MS 1250 A 3-Pole 1150 V AC Fixed Switch Disconnector
ABB 1SDA059021R1 is a SACE Emax E3H/E MS 1250 A three-pole fixed switch disconnector with rear flat horizontal terminals designed for dependable switching and isolation in 1150 V AC power distribution systems.
£8,393.83
Why Choose the ABB 1SDA059021R1 E3H/E MS 1250 Switch Disconnector?
The ABB 1SDA059021R1 is a high-performance SACE Emax E3H/E MS switch disconnector designed for dependable switching and isolation in demanding higher-voltage AC distribution systems. Part of the established ABB SACE Emax New Emax series, this three-pole fixed unit provides a rated uninterrupted current of 1250 A and is specifically designed for operation at up to 1150 V AC.
The E3H/E MS 1250 combines ABB's robust E3 frame with an H performance level and a three-pole configuration for three-phase electrical installations. Its fixed construction provides secure permanent integration within compatible switchgear, making it particularly suitable for industrial distribution systems where reliable circuit isolation is required.
The 1SDA059021R1 features rear flat horizontal terminals for practical busbar and switchboard integration. With a rated insulation voltage of 1250 V, rated impulse withstand voltage of 12 kV and rated short-time withstand current of 30 kA for 1 s, it provides robust electrical performance for specialised 1150 V AC installations.
Key Advantages
- ABB SACE Emax E3H/E MS design for dependable switching and isolation.
- 1250 A rated uninterrupted current for substantial industrial loads.
- Designed for operation at up to 1150 V AC.
- Three-pole configuration for three-phase electrical distribution systems.
- Fixed execution for secure permanent switchboard installation.
- Rear flat horizontal terminals facilitate practical busbar and switchgear integration.
Key Features
- ABB SACE Emax E3H/E MS series.
- 1250 A rated current.
- 3-pole configuration.
- 1150 V AC rated operational voltage.
- 1250 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 30 kA short-time withstand current for 1 s.
- Fixed execution with rear flat horizontal terminals.
- Optional motor operator and voltage release compatibility.
- Designed for use as a main switch within compatible distribution assemblies.
Reliable 1150 V AC Switching and Isolation
The ABB SACE Emax E3H/E MS is engineered for switching and isolation in electrical systems operating at higher AC voltages than conventional 690 V low-voltage distribution equipment. Its 1250 A current rating and 1150 V AC operational voltage make the 1SDA059021R1 particularly suitable for specialised industrial power distribution installations.
The fixed construction provides a permanent isolation point within the switchgear assembly, while the rear flat horizontal terminals support practical integration with busbars and main conductors. With 20,000-cycle mechanical durability and a 30 kA one-second short-time withstand rating, the unit is designed for dependable operation in demanding electrical environments.
Typical Applications
- Industrial 1150 V AC power distribution systems.
- High-voltage AC distribution within industrial facilities.
- Main incoming and outgoing electrical isolation.
- Manufacturing and process industry switchgear.
- Specialised transformer and generator distribution installations.
- Three-phase switchboards requiring fixed 1250 A isolation.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| Extended product type | E3H/EMS12503p1150VACFHRnew |
| Order code | 1SDA059021R1 |
| Product group | 310513-New Emax |
| Product type | Switch disconnector |
| Frame | E3 |
| Performance level | H |
| Rated current (In) | 1250 A |
| Rated operational current (Ie) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 3 |
| Current type | AC |
| Rated operational voltage | 1150 V AC |
| Rated voltage (Ur) | 1150 V |
| Rated insulation voltage (Ui) | 1250 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated short-time withstand current (Icw, 1 s) | 30 kA |
| Power loss | 60 W |
| Execution | Fixed |
| Terminal connection | Rear flat horizontal |
| Electrical durability | 500 cycles |
| Electrical operating frequency | 20 cycles per hour |
| Mechanical durability | 20,000 cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Front protection | IP30 |
| Optional motor operator | Yes |
| Optional voltage release | Yes |
| Standards | IEC |
| Dimensions (W × H × D) | 404 × 418 × 302 mm |
| Net weight | 72 kg |
| EAN | 8015644613808 |
Frequently Asked Questions
What is the ABB 1SDA059021R1 used for?
The ABB 1SDA059021R1 is a 1250 A three-pole SACE Emax switch disconnector designed for switching and isolation in electrical distribution systems operating at up to 1150 V AC.
What is the rated current of the ABB 1SDA059021R1?
The E3H/E MS has a rated current, rated operational current and rated uninterrupted current of 1250 A.
What voltage is the ABB 1SDA059021R1 designed for?
The 1SDA059021R1 has a rated operational voltage of 1150 V AC, with a rated insulation voltage of 1250 V.
Is the ABB 1SDA059021R1 fixed or withdrawable?
The 1SDA059021R1 is a fixed switch disconnector fitted with rear flat horizontal terminals for permanent integration within compatible switchgear.
What is the short-time withstand rating of the ABB 1SDA059021R1?
The E3H/E MS 1250 has a rated short-time withstand current of 30 kA for 1 s.
Trusted ABB Switching for Specialised Power Systems
ABB SACE Emax E3H/E MS switch disconnectors provide dependable high-current switching and isolation for specialised AC distribution systems, combining 1150 V AC capability with robust fixed construction and proven SACE Emax engineering.
