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1SDA073482R1 ABB E1.2B/MS 1250 3p WMP Switch Disconnector
ABB 1SDA073482R1 SACE Emax 2 E1.2B/MS 1250 three-pole withdrawable air switch disconnector moving part rated at 1250 A and 690 V AC with 42 kA one-second short-time withstand capability for low-voltage switching and isolation.
£2,601.88
Why Choose the ABB E1.2B/MS 1250 3p WMP Switch Disconnector?
The ABB E1.2B/MS 1250 3p WMP, order code 1SDA073482R1, is a compact and robust three-pole withdrawable air switch disconnector from the ABB SACE Emax 2 family, designed for dependable switching and isolation in low-voltage power distribution systems. Built on the Emax 2 E1.2 platform, it combines a high continuous-current rating with a compact footprint for industrial, commercial and infrastructure switchboards.
The E1.2B/MS is designed as a switch disconnector in accordance with IEC 60947-3. Unlike an automatic air circuit breaker, the /MS version does not incorporate a protection trip unit and is intended primarily for switching and isolation. This product is the withdrawable moving part, allowing it to be disconnected from its compatible fixed part for maintenance and servicing.
With a rated uninterrupted current of 1250 A, a three-pole configuration and a rated short-time withstand current of 42 kA for 1 s, the E1.2B/MS provides reliable performance in demanding distribution systems. Its 690 V AC rated operational voltage and AC-23A utilisation category make it suitable for switching and isolating industrial power circuits.
Key Advantages
- Compact 1250 A air switch disconnector for low-voltage distribution.
- Three-pole configuration for three-phase circuit switching and isolation.
- 42 kA short-time withstand current for 1 s.
- 690 V AC rated operational voltage for industrial power systems.
- Withdrawable moving-part design supports convenient servicing and maintenance.
- Derived from the proven ABB SACE Emax 2 E1.2 platform.
Key Features
- ABB SACE Emax 2 E1.2B/MS series.
- 1250 A rated uninterrupted current.
- 3-pole configuration.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 42 kA Icw for 1 s.
- 24 kA Icw for 3 s.
- AC-23A utilisation category.
- Withdrawable moving-part construction.
- Designed for switching and electrical isolation without an automatic protection trip unit.
Reliable Switching and Isolation for Power Distribution
ABB Emax 2 /MS switch disconnectors are designed to provide dependable switching and electrical isolation of low-voltage circuits. When open, the separation of the main contacts provides the isolation required to electrically separate downstream equipment, while the absence of an automatic protection trip unit distinguishes the /MS device from an Emax 2 air circuit breaker.
The withdrawable E1.2B/MS architecture allows the moving part to be separated from its compatible fixed part, helping simplify inspection, servicing and equipment replacement. Combined with its 1250 A current rating and 42 kA one-second withstand capability, the 1SDA073482R1 is well suited to compact but demanding low-voltage distribution assemblies.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Three-phase circuit isolation and sectionalising.
- Withdrawable switchgear requiring service flexibility.
- OEM switchgear and panel-building applications.
Technical Specifications
| Series | SACE Emax 2 E1.2 |
|---|---|
| ABB order code | 1SDA073482R1 |
| Product type | Air switch disconnector moving part |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 3 |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated short-time withstand current (Icw), 1 s | 42 kA |
| Rated short-time withstand current (Icw), 3 s | 24 kA |
| Frequency | 50 / 60 Hz |
| Utilisation category | AC-23A |
| Performance level | B |
| Installation | Withdrawable |
| Device configuration | Moving part |
| Dimensions (W × H × D) | 278 × 363.5 × 271 mm |
| Weight | approx. 18 kg |
| EAN | 8015644773328 |
| Standard | IEC 60947-3 |
Frequently Asked Questions
What is the ABB 1SDA073482R1 used for?
The ABB 1SDA073482R1 is an Emax 2 E1.2B/MS withdrawable air switch disconnector moving part used for switching and electrical isolation in low-voltage power distribution systems.
What is the current rating of the ABB E1.2B/MS 1250?
The switch disconnector has a rated uninterrupted current of 1250 A.
What short-time current can the E1.2B/MS 1250 withstand?
The device has a rated short-time withstand current of 42 kA for 1 second and 24 kA for 3 seconds.
What voltage is the ABB 1SDA073482R1 rated for?
The switch disconnector has a rated operational voltage of 690 V AC and a rated insulation voltage of 1000 V AC.
Is the ABB E1.2B/MS 1250 fixed or withdrawable?
The 1SDA073482R1 is the withdrawable moving part of the switch disconnector and is designed for use with the appropriate separately installed fixed part.
Trusted ABB Power Distribution Technology
ABB SACE Emax 2 switch disconnectors combine compact construction, dependable high-current switching and flexible withdrawable installation for industrial, commercial and infrastructure low-voltage power distribution systems.
