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1SDA058940R1 ABB SACE Emax E1B/MS 800 A 4-Pole Withdrawable Switch-Disconnector Moving Part
ABB 1SDA058940R1 is an 800 A four-pole withdrawable SACE Emax E1B/MS switch-disconnector moving part rated for 690 V AC operation with a 42 kA short-time withstand current for 1 second.
£8,230.00
Why Choose the ABB 1SDA058940R1 Emax E1B/MS 800 Switch-Disconnector?
The ABB 1SDA058940R1 is a SACE Emax E1B/MS 800 four-pole withdrawable switch-disconnector moving part designed for switching and isolation in low-voltage power distribution systems. Identified by ABB as E1B/MS8004pWMPnew, this configuration combines an 800 A current rating with four-pole construction and a withdrawable design for use with compatible SACE Emax switchgear.
The E1B/MS configuration provides switching and isolation rather than the automatic overcurrent protection associated with an Emax circuit breaker equipped with a trip unit. Its four-pole arrangement enables simultaneous switching of four conductors, making it suitable for distribution systems where the neutral conductor must also be switched.
The withdrawable moving part (MP) construction allows the device to operate as part of a compatible draw-out assembly, supporting convenient isolation and maintenance. With an 800 A rated uninterrupted current, operational voltage up to 690 V AC and short-time withstand capability of 42 kA for 1 s, the 1SDA058940R1 is well suited to industrial and commercial distribution switchboards.
Key Advantages
- Genuine ABB SACE Emax E1B/MS switch-disconnector.
- 800 A rated uninterrupted current for substantial distribution loads.
- Four-pole configuration for four-conductor switching.
- Withdrawable moving-part design for compatible draw-out switchgear.
- 690 V AC rated operational voltage.
- 42 kA short-time withstand current for 1 s.
- 36 kA short-time withstand current for 3 s.
- Supports convenient circuit isolation, inspection and maintenance.
- Suitable for distribution board installation.
- Optional motor drive and voltage release provide additional configuration flexibility.
Key Features
- ABB SACE Emax E1B/MS 800 switch-disconnector.
- 800 A rated current.
- Four-pole configuration.
- Withdrawable execution (W).
- Moving part (MP) for compatible Emax draw-out assemblies.
- E1 frame.
- B performance level.
- 690 V AC / 250 V DC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 42 kA short-time withstand current for 1 s.
- 36 kA short-time withstand current for 3 s.
- 800 A AC-21 rated permanent current at 400 V.
- Interlockable construction.
- Optional motor drive and voltage release.
Withdrawable Switching and Isolation with Emax E1B/MS
ABB SACE Emax /MS switch-disconnectors are designed to perform switching and electrical isolation within low-voltage distribution systems. The E1B/MS 800 provides these functions without an electronic overcurrent trip unit, allowing protection to be coordinated separately using suitable protective equipment elsewhere in the installation.
The withdrawable moving-part configuration gives the 1SDA058940R1 additional flexibility compared with a fixed device. When paired with the appropriate Emax fixed part, it forms a draw-out assembly that supports isolation and maintenance while retaining the high-current switching capability required by industrial power distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-main electrical switchboards.
- Four-pole switching and electrical isolation.
- Withdrawable switchgear assemblies.
- 800 A feeder switching and isolation.
- Transformer secondary distribution systems.
- Manufacturing and process industry installations.
- Commercial and infrastructure power distribution systems.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| Product group | 310513-New Emax |
| ABB order code | 1SDA058940R1 |
| Extended product type | E1B/MS8004pWMPnew |
| Product type | Switch-disconnector moving part |
| ABB description | E1B/MS 800 4p W MP new |
| Frame | E1 |
| Performance level | B |
| Rated current | 800 A |
| Rated operational current | 800 A |
| Rated uninterrupted current | 800 A |
| Rated permanent current at AC-21, 400 V | 800 A |
| Number of poles | 4 |
| Execution | Withdrawable |
| Component | Moving part |
| Current type | AC |
| Rated operational voltage | 690 V AC / 250 V DC |
| Rated voltage | 690 V |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Rated short-time withstand current | 42 kA for 1 s / 36 kA for 3 s |
| Power loss | 95 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 |
| Interlockable | Yes |
| Motor drive | Optional |
| Voltage release | Optional |
| Distribution board installation | Suitable |
| Standard | IEC |
| Product dimensions (W × H × D) | 414 × 461 × 396.5 mm |
| Net weight | 54 kg |
| EAN | 8015644612993 |
| Minimum order quantity | 1 piece |
| Customs tariff number | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA058940R1?
The ABB 1SDA058940R1 is a SACE Emax E1B/MS 800 four-pole withdrawable switch-disconnector moving part with a rated uninterrupted current of 800 A.
What is the rated current of the ABB 1SDA058940R1?
The E1B/MS 800 has a rated uninterrupted current of 800 A.
What does 4P W MP mean on the ABB E1B/MS 800?
4P identifies the four-pole configuration, W identifies the withdrawable execution and MP identifies the moving part of the draw-out switchgear assembly.
Is the ABB 1SDA058940R1 a circuit breaker or a switch-disconnector?
The 1SDA058940R1 is an E1B/MS switch-disconnector moving part intended primarily for switching and electrical isolation rather than automatic overcurrent protection.
What is the short-time withstand current of the ABB E1B/MS 800?
The E1B/MS 800 has a rated short-time withstand current of 42 kA for 1 s and 36 kA for 3 s.
Trusted ABB SACE Emax Switching and Isolation
ABB SACE Emax switch-disconnectors provide dependable switching and isolation for low-voltage power distribution, with the E1B/MS 800 combining an 800 A rating, four-pole construction and withdrawable moving-part design for flexible switchgear operation and maintenance.
