OT1250E04W8P ABB 1250A 4 Pole Switch-Disconnector

OT1250E04W8P ABB 1250A 4 Pole Switch-Disconnector

ABB OT1250E04W8P 1250 A four pole switch-disconnector with 185 mm wide phase distance and IP65 handle designed for reliable industrial power isolation and manual switching.

SKU: OT1250E04W8PAlt SKU: 1SCA100764R1001MPN: OT1250E04W8P
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Why Choose the ABB OT1250E04W8P Switch-Disconnector?

The ABB OT1250E04W8P is a heavy-duty 1250 A four-pole switch-disconnector designed for reliable electrical isolation and manual switching in demanding industrial power distribution systems. As part of the proven ABB OT switch-disconnector series, it provides dependable high-current control with enhanced phase spacing for advanced industrial installations.

This front-operated, base-mounted switch-disconnector features a wide 185 mm phase distance, black IP65 handle and shaft, and included terminal bolt kit. The increased phase spacing provides additional electrical clearance for high-current assemblies, while the complete operating arrangement supports straightforward installation in industrial switchboards and electrical distribution systems. :chatgpt-content-reference{index="0"}

With a rated operational current of 1250 A, a four-pole configuration and a rated insulation voltage of 1000 V, the OT1250E04W8P is suitable for heavy-duty industrial applications requiring dependable manual isolation, switching performance and long service life. :chatgpt-content-reference{index="1"}

Key Advantages

  • Heavy-duty 1250 A switch-disconnector for industrial power systems.
  • Four-pole configuration for complete circuit isolation.
  • Wide 185 mm phase distance for increased electrical clearance.
  • Complete operating solution with black IP65 handle and shaft included.
  • Base-mounted design for flexible switchboard installation.
  • High short-circuit withstand capability for demanding applications.

Key Features

  • ABB OT switch-disconnector series.
  • 1250 A rated operational current.
  • 4-pole switch-disconnector design.
  • Wide phase distance of 185 mm.
  • 1000 V rated insulation voltage.
  • Front-operated manual switching mechanism.
  • Base mounting installation format.
  • Lug terminal connection design.
  • Terminal bolt kit included.
  • Black IP65 handle and shaft included.
  • Switched simultaneous fourth pole function.

Reliable High-Current Power Isolation

Switch-disconnectors such as the ABB OT1250E04W8P provide a dependable method of manually isolating electrical equipment and switching high-current circuits. They are commonly installed in industrial switchboards, distribution assemblies and machinery power systems where safe maintenance isolation is required.

The ABB OT series combines robust mechanical construction with flexible installation options. The wide phase distance design of this model provides additional clearance for demanding high-current applications while maintaining reliable switching performance. :chatgpt-content-reference{index="2"}

Typical Applications

  • Industrial power distribution switchboards.
  • Electrical switchgear assemblies.
  • Heavy machinery isolation systems.
  • Manufacturing and process equipment.
  • Power infrastructure installations.
  • Industrial maintenance isolation applications.

Technical Specifications

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Poles 4-pole
Current 1250 A
Device Type Switch Disconnector
Power 710 kW
Product Series ABB OT
Series OT Switch Disconnectors
Product type Switch-disconnector
ABB order code 1SCA100764R1001
Rated operational current 1250 A
Number of poles 4 poles
Rated operational voltage 1000 V AC
Rated insulation voltage 1000 V
Rated impulse withstand voltage 12 kV
AC-21A rated current 1250 A
AC-22A rated current 1250 A
AC-23A rated current 1250 A
AC-23A rated power 710 kW at 400–415 V, 900 kW at 500 V, 1200 kW at 690 V
Conventional free-air thermal current 1250 A
Rated short-time withstand current 50 kA for 1 s
Rated short-circuit making capacity 92 kA at 690 V
Protection rating Front IP00
Mounting type Base mounting
Operating mode Front operated
Terminal type Lug terminals
Terminal width 50 mm
Phase distance 185 mm
Fourth pole position Right side
Fourth pole type Switched - simultaneous function
Handle Black IP65 handle included
Shaft Included
Mechanical durability 6000 operations
Standards IEC 60947-3
Dimensions (W × H × D) approx. 544.5 × 306 × 145.5 mm
Weight approx. 25.6 kg

Frequently Asked Questions

What is the ABB OT1250E04W8P used for?

The ABB OT1250E04W8P is used for manual isolation and switching of high-current electrical circuits in industrial power systems.

What current rating does this switch-disconnector have?

The OT1250E04W8P has a rated operational current of 1250 A.

How many poles does the ABB OT1250E04W8P have?

The OT1250E04W8P is a four-pole switch-disconnector.

What is the purpose of the wide phase distance design?

The wide 185 mm phase distance provides increased electrical clearance for high-current industrial applications.

Is the handle included with the OT1250E04W8P?

Yes, the OT1250E04W8P is supplied with a black IP65 handle and shaft.

Trusted by Industrial Electrical Engineers Worldwide

ABB OT switch-disconnectors are widely used in industrial power systems to provide reliable isolation, safe switching and dependable operation in demanding electrical environments.