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1SDA058981R1 ABB E3S/MS 1250 3P Withdrawable Switch-Disconnector
ABB 1SDA058981R1 is a SACE Emax E3S/MS 1250 A three-pole withdrawable switch-disconnector moving part for dependable high-current switching and isolation in low-voltage power distribution systems.
£8,382.82
Why Choose the ABB E3S/MS 1250 3P Withdrawable Switch-Disconnector?
The ABB E3S/MS 1250, order code 1SDA058981R1, is a SACE Emax switch-disconnector moving part designed for dependable high-current switching and isolation in low-voltage power distribution systems. It combines a 1250 A rated uninterrupted current with three-pole construction and a withdrawable configuration for use with the appropriate ABB Emax fixed part.
As part of the ABB SACE Emax E3S/MS series, this device performs switching and isolation rather than providing integral electronic overcurrent protection. Its E3 frame and S performance level provide substantial electrical withstand capability for demanding industrial, commercial and infrastructure switchboards where suitable circuit protection is coordinated separately.
The E3S/MS 1250 3P W MP configuration features three poles and a withdrawable moving part (W MP). It supports operation up to 690 V AC and offers a rated short-time withstand current of 75 kA for 1 s, making it a robust solution for high-capacity three-phase distribution systems.
Key Advantages
- High-current 1250 A SACE Emax switch-disconnector.
- Three-pole configuration for three-phase power distribution.
- Withdrawable moving-part design supports convenient isolation, inspection and servicing.
- Rated operational voltage of 690 V AC / 250 V DC.
- High 75 kA short-time withstand current for 1 s.
- Designed for integration with the appropriate ABB SACE Emax fixed part.
Key Features
- ABB SACE Emax E3S/MS series.
- 1250 A rated uninterrupted current.
- Three-pole (3P) construction.
- Withdrawable (W) execution.
- Moving part (MP) configuration.
- S short-circuit performance level.
- 690 V AC / 250 V DC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Designed for high-current switching and isolation in compatible Emax switchgear.
Serviceable High-Current Switching and Isolation
The ABB E3S/MS 1250 provides controlled switching and isolation for high-current low-voltage circuits. As an MS switch-disconnector execution, it is intended to establish and isolate electrical circuits rather than provide the electronic overcurrent protection associated with an Emax air circuit breaker equipped with a trip unit.
Its three-pole configuration is suited to three-phase distribution systems, while the withdrawable moving-part design provides additional flexibility for maintenance and servicing. The unit can be used with the appropriate fixed part to create a withdrawable SACE Emax installation with convenient disconnection from the main power circuit.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial three-phase power distribution systems.
- High-current feeder switching and isolation.
- Manufacturing and process plant switchgear.
- Commercial building power distribution.
- Infrastructure and utility electrical installations.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Order code | 1SDA058981R1 |
| Product type | Switch-disconnector moving part |
| Frame / sub-type | E3 |
| Short-circuit performance level | S |
| Rated current (In) | 1250 A |
| Rated operational current (Ie) | 1250 A |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 3P |
| Current type | AC |
| Rated operational voltage | 690 V AC / 250 V DC |
| Rated voltage (Ur) | 690 V |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated short-time withstand current (Icw) | 75 kA for 1 s / 65 kA for 3 s |
| Execution | Withdrawable (W) |
| Component | Moving part (MP) |
| Terminal connection type | Withdrawable |
| Power loss | 90 W |
| Electrical durability | 12,000 cycles |
| Mechanical durability | 20,000 cycles |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA058981R1?
It is an ABB SACE Emax E3S/MS 1250 switch-disconnector moving part with a 1250 A rated uninterrupted current, three poles and a withdrawable configuration.
What is the rated current of the ABB E3S/MS 1250?
The ABB 1SDA058981R1 has a rated uninterrupted current of 1250 A.
What is the short-time withstand current of the E3S/MS 1250?
The device has a rated short-time withstand current of 75 kA for 1 s and 65 kA for 3 s.
Is the ABB 1SDA058981R1 fixed or withdrawable?
The 1SDA058981R1 is a withdrawable moving part (W MP) designed for use with the appropriate ABB SACE Emax fixed part.
What is the rated operational voltage of the ABB E3S/MS 1250?
The switch-disconnector is rated for operation at 690 V AC and 250 V DC.
Trusted ABB SACE Emax Switching
ABB SACE Emax switch-disconnectors provide dependable high-current switching and isolation for low-voltage power distribution, combining substantial electrical withstand capability with serviceable withdrawable configurations for industrial, commercial and infrastructure switchgear.
