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.
1SDA073477R1 ABB E1.2N/MS 630 3p WMP Switch Disconnector
ABB 1SDA073477R1 SACE Emax 2 E1.2N/MS 630 three-pole withdrawable switch disconnector moving part with a 630 A rated uninterrupted current, 690 V AC operational voltage and 50 kA short-time withstand capability for low-voltage switching and isolation.
£3,318.10
Why Choose the ABB E1.2N/MS 630 3p WMP Switch Disconnector?
The ABB E1.2N/MS 630 3p WMP, order code 1SDA073477R1, is a SACE Emax 2 withdrawable switch disconnector moving part designed for dependable switching and isolation in low-voltage electrical distribution systems. Built on ABB's compact E1.2 platform, this three-pole device provides a 630 A rated uninterrupted current and combines efficient switchboard integration with the flexibility of a withdrawable installation.
The E1.2N/MS configuration is intended for switching and isolation rather than integral electronic overcurrent protection. It provides a rated short-time withstand current of 50 kA, allowing the device to carry substantial short-duration fault current while suitable protective equipment elsewhere in the installation provides overload and short-circuit protection.
Supplied as the withdrawable moving part (WMP), the 1SDA073477R1 is designed to operate with the appropriate Emax 2 fixed part, which is ordered separately. Its withdrawable architecture simplifies isolation, inspection and maintenance while retaining a compact three-pole format for switchboard applications rated up to 690 V AC.
Key Advantages
- 630 A rated uninterrupted current for low-voltage power distribution applications.
- Three-pole configuration for three-phase switching and isolation.
- 50 kA rated short-time withstand current for demanding distribution networks.
- Rated for operation at up to 690 V AC.
- Withdrawable moving-part design supports convenient isolation and maintenance.
- Compatible with the corresponding Emax 2 fixed part for withdrawable switchboard installation.
- Compact E1.2 frame supports space-efficient low-voltage switchboard designs.
- Based on ABB's established SACE Emax 2 platform for industrial and commercial power distribution.
Key Features
- ABB SACE Emax 2 E1.2N/MS switch disconnector.
- 630 A rated uninterrupted current.
- Three-pole configuration.
- Withdrawable moving part (WMP).
- 690 V AC rated operational voltage.
- 50 kA rated short-time withstand current.
- 630 A AC-21 rated current at 400 V AC.
- 630 A AC-23 rated current at 400 V AC.
- Switch-disconnector configuration without integral electronic overcurrent protection.
- Fixed part required separately for complete withdrawable installation.
- Designed for compact switchboard integration.
- Suitable for main, feeder and bus-section isolation applications.
Withdrawable Switching and Isolation for Low-Voltage Distribution
Withdrawable switch disconnectors provide a practical solution where dependable electrical isolation must be combined with convenient inspection and maintenance. The moving part can be separated from the fixed portion of the switchgear assembly, providing additional flexibility compared with a permanently fixed switching device. Overload and short-circuit protection must be provided by suitable protective equipment elsewhere in the installation.
The ABB E1.2N/MS 630 combines a 630 A continuous-current rating with a 50 kA short-time withstand capability. Its compact three-pole E1.2 construction and withdrawable moving-part format make it suitable for industrial and commercial switchboards where reliable isolation, maintainability and efficient use of panel space are important.
Typical Applications
- Main switchboard switching and isolation.
- Three-phase low-voltage distribution systems.
- Industrial power distribution switchboards.
- Commercial building electrical distribution.
- Feeder switching and isolation.
- Bus-section and distribution-board isolation.
- Manufacturing and process plant electrical systems.
- Withdrawable switchgear installations requiring convenient maintenance access.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code / MPN | 1SDA073477R1 |
| EAN / GTIN | 8015644773274 |
| Product type | Withdrawable switch disconnector moving part |
| Product group | Emax2 Air Circuit Breaker |
| Frame | E1.2 |
| Performance level | N/MS |
| Rated uninterrupted current (Iu) | 630 A |
| Number of poles | 3 |
| Rated operational voltage (Ue) | 690 V AC |
| Rated short-time withstand current (Icw) | 50 kA |
| Rated current, AC-21 at 400 V | 630 A |
| Rated current, AC-23 at 400 V | 630 A |
| Installation | Withdrawable |
| Supplied component | Moving part |
| Fixed part | Ordered separately |
| Dimensions (W × H × D) | 278 × 363.5 × 271 mm |
| Net weight | 18 kg |
Frequently Asked Questions
What is the ABB 1SDA073477R1?
The ABB 1SDA073477R1 is an Emax 2 E1.2N/MS 630 three-pole withdrawable switch disconnector moving part designed for switching and isolation in low-voltage electrical distribution systems.
What is the rated current of the ABB E1.2N/MS 630?
The E1.2N/MS 630 has a rated uninterrupted current of 630 A and is suitable for systems with a rated operational voltage of up to 690 V AC.
What is the short-time withstand current of the ABB 1SDA073477R1?
The E1.2N/MS 630 has a rated short-time withstand current of 50 kA, supporting use in low-voltage distribution systems with substantial prospective fault currents.
What does WMP mean on the ABB E1.2N/MS 630?
WMP identifies the withdrawable moving part. The 1SDA073477R1 is the moving portion of the withdrawable switch disconnector assembly, and the appropriate fixed part is required separately to create the complete installation.
Is the ABB E1.2N/MS 630 a protective circuit breaker?
No. The E1.2N/MS configuration is a switch disconnector intended for switching and isolation. Suitable overload and short-circuit protection must be provided separately within the electrical distribution system.
Trusted Withdrawable Switching and Isolation from ABB
ABB SACE Emax 2 switch disconnectors combine dependable isolation, compact construction and flexible withdrawable switchgear integration for industrial, commercial and infrastructure low-voltage power distribution systems.
