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1SDA073476R1 ABB E1.2B/MS 630 3p WMP Switch-Disconnector
ABB 1SDA073476R1 E1.2B/MS 630 3p WMP is a three-pole 630 A SACE Emax 2 withdrawable air switch-disconnector moving part with 690 V AC operational voltage and 42 kA 1-second short-time withstand capability for low-voltage power distribution systems.
£1,973.34
Why Choose the ABB E1.2B/MS 630 3p WMP Switch-Disconnector?
The ABB E1.2B/MS 630 3p WMP, order code 1SDA073476R1, is a three-pole withdrawable air switch-disconnector moving part designed for reliable switching and isolation in low-voltage power distribution systems. As part of the ABB SACE Emax 2 E1.2 series, it provides a rated uninterrupted current of 630 A and combines compact construction with robust electrical performance for industrial, commercial and infrastructure switchboards.
This E1.2B/MS configuration is the moving part of a withdrawable switch-disconnector, allowing it to be installed with the corresponding Emax 2 fixed part. The withdrawable arrangement supports efficient inspection, servicing and replacement while providing the flexibility required in modern low-voltage switchgear assemblies.
With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and rated short-time withstand current of 42 kA for 1 s, the E1.2B/MS 630 provides dependable switching and isolation for three-phase distribution applications where maintainability and robust short-time withstand capability are important.
Key Advantages
- Compact 630 A air switch-disconnector for low-voltage distribution systems.
- Three-pole configuration for three-phase switching and isolation.
- Withdrawable moving-part design supports efficient servicing and replacement.
- Rated operational voltage of 690 V AC.
- Rated short-time withstand current of 42 kA for 1 s.
- 12 kV impulse withstand voltage for robust insulation performance.
- High mechanical durability for demanding switchboard applications.
- Part of ABB's established SACE Emax 2 low-voltage power distribution platform.
Key Features
- ABB SACE Emax 2 E1.2B/MS series.
- 630 A rated uninterrupted current.
- Three-pole switching configuration.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 42 kA rated short-time withstand current for 1 s.
- 24 kA rated short-time withstand current for 3 s.
- Withdrawable moving part for use with the corresponding Emax 2 fixed part.
- Mechanical durability of up to 20,000 operating cycles.
Reliable Withdrawable Switching and Isolation
Air switch-disconnectors provide a dependable means of switching and electrically isolating sections of low-voltage installations. The withdrawable construction of the ABB E1.2B/MS allows the moving part to be separated from the corresponding fixed part, supporting inspection, servicing and replacement while maintaining the robust switching architecture of the Emax 2 platform.
The E1.2B/MS 630 combines a 630 A uninterrupted current rating with 42 kA for 1 s short-time withstand capability. Its three-pole configuration makes it suitable for three-phase distribution systems where reliable isolation, compact switchgear construction and convenient maintainability are required.
Typical Applications
- Low-voltage main and sub-distribution switchboards.
- Industrial three-phase power distribution systems.
- Commercial and infrastructure electrical installations.
- Switchboards requiring withdrawable isolation devices.
- Manufacturing and process plant distribution systems.
- Electrical assemblies where maintainability and device replacement are important.
Technical Specifications
| Series | SACE Emax 2 E1.2 |
|---|---|
| ABB order code | 1SDA073476R1 |
| Product type | Air switch-disconnector moving part |
| Frame / subtype | E1.2 |
| Short-circuit performance level | B |
| Rated current (In) | 630 A |
| Rated uninterrupted current (Iu) | 630 A |
| 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 | 42 kA |
| Rated short-time withstand current (Icw), 3 s | 24 kA |
| Number of poles | 3 |
| Version | Withdrawable moving part (WMP) |
| Electrical durability at ≤440 V | 8,000 cycles |
| Electrical durability at 500–690 V | 8,000 cycles |
| Mechanical durability | 20,000 cycles |
| Power loss | 62 W |
| Dimensions (W × H × D) | 278 × 363.5 × 271 mm |
| Weight | 18 kg |
| EAN / GTIN | 8015644773267 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA073476R1 used for?
The ABB 1SDA073476R1 is a 630 A three-pole withdrawable air switch-disconnector moving part designed for switching and isolation duties in low-voltage power distribution systems.
What is the rated current of the E1.2B/MS 630 3p WMP?
The E1.2B/MS 630 has a rated uninterrupted current of 630 A.
What does WMP mean on the ABB E1.2B/MS 630?
WMP identifies the moving part of the withdrawable configuration, which is designed for use with the corresponding Emax 2 fixed part in a withdrawable switchboard installation.
What is the short-time withstand current of the ABB 1SDA073476R1?
The switch-disconnector has a rated short-time withstand current of 42 kA for 1 s and 24 kA for 3 s.
What voltage is the E1.2B/MS 630 rated for?
The device has a rated operational voltage of 690 V AC, a rated insulation voltage of 1000 V AC and a rated impulse withstand voltage of 12 kV.
How many poles does the ABB E1.2B/MS 630 have?
ABB 1SDA073476R1 is a three-pole configuration designed for switching and isolation in three-phase low-voltage distribution systems.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 2 switch-disconnectors are engineered for low-voltage distribution systems where dependable isolation, robust electrical performance and flexible withdrawable switchboard integration are required.
