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OT1250E04W8 ABB 1250A 4 Pole Switch-Disconnector
ABB OT1250E04W8 1250 A four pole switch-disconnector with 185 mm wide phase distance designed for reliable industrial power isolation and manual switching.
£1,954.95
Why Choose the ABB OT1250E04W8 Switch-Disconnector?
The ABB OT1250E04W8 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 trusted ABB OT switch-disconnector series, it provides dependable high-current control with enhanced phase spacing for industrial installations requiring increased electrical clearance.
This front-operated, base-mounted switch-disconnector features a wide 185 mm phase distance and is supplied without handle and shaft, allowing flexible selection of operating accessories. The increased phase spacing provides additional clearance for high-current assemblies, while the included terminal bolt kit supports straightforward installation. :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 OT1250E04W8 is suitable for industrial switchboards, power distribution systems and machinery applications requiring dependable manual isolation and switching performance. :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.
- Base-mounted construction for flexible switchboard installation.
- Front-operated manual switching mechanism.
- Terminal bolt kit included for installation convenience.
- Handle and shaft available separately for application-specific configuration.
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.
- Handle and shaft not included.
- Switched simultaneous fourth pole function.
Reliable High-Current Power Isolation
Switch-disconnectors such as the ABB OT1250E04W8 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 electrical 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 | 1SCA101554R1001 | |
| 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 | |
| Phase distance | 185 mm | |
| Fourth pole position | Right side | |
| Fourth pole type | Switched - simultaneous function | |
| Handle | Not included | |
| Shaft | Not included | |
| Mechanical durability | 6000 operations | |
| Standards | IEC 60947-3 | |
| Dimensions (W × H × D) | approx. 544.5 × 306 × 145.5 mm | |
| Weight | approx. 24.7 kg |
Frequently Asked Questions
What is the ABB OT1250E04W8 used for?
The ABB OT1250E04W8 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 OT1250E04W8 has a rated operational current of 1250 A.
How many poles does the ABB OT1250E04W8 have?
The OT1250E04W8 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 OT1250E04W8?
No, the OT1250E04W8 is supplied without handle and shaft; these accessories are selected separately.
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.
