1SDA059048R1 ABB E1B/E MS 1250 4P 1000 V DC W MP 1250 A Switch-Disconnector

1SDA059048R1 ABB E1B/E MS 1250 4P 1000 V DC W MP 1250 A Switch-Disconnector

ABB 1SDA059048R1 E1B/E MS 1250 4P 1000 V DC W MP is a 1250 A four-pole withdrawable SACE Emax switch-disconnector moving part designed for high-current switching and electrical isolation at 1000 V DC.

SKU: 1SDA059048R1MPN: 1SDA059048R1
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Why Choose the ABB E1B/E MS 1250 4P 1000 V DC W MP Switch-Disconnector?

The ABB E1B/E MS 1250 4P 1000 V DC W MP, order code 1SDA059048R1, is a SACE Emax switch-disconnector moving part designed for dependable switching and electrical isolation in demanding DC power distribution systems. Part of the ABB SACE Emax E1 series, this four-pole unit provides a rated uninterrupted current of 1250 A and a rated operational voltage of 1000 V DC.

Designed for withdrawable installations, the E1B/E MS 1250 is supplied as the moving part (MP) of the switch-disconnector assembly. Its withdrawable construction facilitates inspection, servicing and replacement within compatible ABB SACE Emax switchgear, providing a practical solution for installations where maintainability and operational flexibility are important.

The E1 frame, B performance level and rated short-time withstand current of 20 kA for 1 s provide robust capability for specialised DC distribution applications. Combined with its 1250 A current rating, 1000 V DC operational voltage and four-pole construction, the E1B/E MS 1250 provides a dependable solution for high-current DC switching and isolation.

Key Advantages

  • High-current 1250 A switch-disconnector for demanding DC distribution applications.
  • Designed for operation at 1000 V DC.
  • Four-pole configuration for compatible DC power distribution arrangements.
  • Withdrawable moving-part design supports convenient inspection, servicing and replacement.
  • Rated short-time withstand current of 20 kA for 1 s.
  • Electrical durability of 10,000 cycles and mechanical durability of 25,000 cycles.

Key Features

  • ABB SACE Emax E1B/E MS series.
  • 1250 A rated uninterrupted current.
  • 1000 V DC rated operational voltage.
  • Four-pole configuration.
  • E1 frame size.
  • B performance level.
  • Withdrawable installation format.
  • Supplied as the moving part (MP) of the switch-disconnector assembly.
  • 12 kV rated impulse withstand voltage.
  • 230 W power loss.

Reliable Withdrawable Switching and Isolation at 1000 V DC

Switch-disconnectors provide controlled switching and electrical isolation within power distribution systems, allowing circuits and connected equipment to be separated from their electrical supply when required. The ABB E1B/E MS 1250 is specifically configured for 1000 V DC applications requiring substantial current-carrying capability and dependable electrical isolation.

The four-pole configuration enables four conductors to be switched and isolated within compatible DC system architectures, while the withdrawable moving-part construction supports efficient switchgear maintenance. Combined with its 1250 A rated uninterrupted current and 20 kA for 1 s short-time withstand capability, the E1B/E MS 1250 4P 1000 V DC W MP provides a robust solution for demanding industrial DC power distribution.

Typical Applications

  • Industrial 1000 V DC power distribution systems.
  • High-current DC switchboards and distribution assemblies.
  • Four-pole DC switching and isolation systems.
  • Industrial DC bus and feeder isolation.
  • Manufacturing and process plant electrical infrastructure.
  • Energy and specialised infrastructure installations.
  • Withdrawable DC switchgear requiring serviceable moving components.

Technical Specifications

Series SACE Emax
Extended product type E1B/EMS12504p1000VDCWMPnew
Order code / MPN 1SDA059048R1
Product group 310513-New Emax
Product type Switch-disconnector moving part
Frame E1
Performance level B
Rated current (In) 1250 A
Rated operational current (Ie) 1250 A
Rated uninterrupted current (Iu) 1250 A
Rated operational voltage 1000 V DC
Rated voltage (Ur) 1000 V
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 12 kV
Number of poles 4
Current type DC
Rated short-time withstand current (Icw) 20 kA for 1 s
Installation Withdrawable
Configuration Moving part (MP)
Terminal connection type Withdrawable circuit-breaker connection
Main circuit connection Bolted connection
Front protection rating IP30
Suitable for distribution board installation Yes
Power loss 230 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
Voltage release Optional
Motor operator Optional
Integrated motor operator No
Dimensions (W × H × D) 414 × 461 × 396.5 mm
Product net weight 54 kg
EAN 8015644614072
Customs tariff / HS code 85362090
Standards IEC

Frequently Asked Questions

What is the ABB E1B/E MS 1250 4P 1000 V DC W MP used for?

The ABB E1B/E MS 1250 is a 1250 A switch-disconnector moving part designed for high-current switching and electrical isolation in compatible DC power distribution systems operating at 1000 V DC.

What is the current rating of the ABB 1SDA059048R1?

The ABB 1SDA059048R1 has a rated operational and uninterrupted current of 1250 A.

What is the operating voltage of the ABB E1B/E MS 1250?

This version of the ABB E1B/E MS 1250 has a rated operational voltage of 1000 V DC.

What is the short-time withstand current of the ABB 1SDA059048R1?

The ABB 1SDA059048R1 has a rated short-time withstand current of 20 kA for 1 s.

What does 4P W MP mean on the ABB E1B/E MS 1250?

4P identifies the four-pole configuration, W denotes the withdrawable execution and MP identifies the moving part of the switch-disconnector assembly.

Trusted ABB SACE Emax DC Power Distribution Technology

ABB SACE Emax switch-disconnectors provide robust high-current switching and electrical isolation for demanding power distribution applications, with specialised DC configurations and withdrawable designs supporting maintainable industrial switchgear installations.