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OT250E04WC ABB 250A 4 Pole Wide Phase Distance Change-Over Switch
ABB OT250E04WC 250A four pole manual change-over switch with wide phase distance and open transition design for reliable low-voltage power transfer applications.
£981.21
Why Choose the ABB OT250E04WC Change-Over Switch?
The ABB OT250E04WC is a robust manual change-over switch designed for reliable source transfer and electrical switching in industrial low-voltage power distribution systems. As part of the trusted ABB OT change-over switch series, it provides dependable manual control between two electrical sources for industrial, commercial and infrastructure applications.
This switch features a wide phase distance design with phase barriers, providing increased separation between phases for demanding electrical installations. The unit is supplied without handle and shaft, allowing the required operating accessories to be selected separately according to the installation requirements. :chatgpt-content-reference{index="0"}
With a rated current of 250 A and a four-pole configuration, the OT250E04WC is suitable for industrial switchboards, generator transfer systems and low-voltage power distribution assemblies. Its left-side mechanism, front operation and base mounting design support flexible integration into electrical panels. :chatgpt-content-reference{index="1"}
Key Advantages
- Reliable 250 A manual change-over switch for industrial applications.
- Four-pole switching configuration for dependable source transfer control.
- Wide phase distance construction with phase barriers.
- Handle and shaft ordered separately for installation flexibility.
- Open transition operation for controlled switching between positions.
- Designed for robust operation in low-voltage distribution systems.
Key Features
- ABB OT change-over switch series.
- 250 A rated current.
- 4-pole manual change-over switch.
- Open transition switching principle.
- Wide phase distance design.
- Phase barriers included.
- Mechanism at the end of the switch 04 (left side).
- Handle and shaft not included.
- Front-operated base mounting construction.
Reliable Power Transfer for Industrial Systems
Manual change-over switches such as the ABB OT250E04WC provide dependable control for transferring electrical loads between two available power sources. Their robust construction, wide phase separation and reliable switching mechanism make them suitable for demanding industrial electrical installations.
The ABB OT series combines durable switching technology with flexible accessory options, allowing engineers to configure installations according to specific operational requirements while maintaining reliable performance.
Typical Applications
- Generator and mains change-over systems.
- Industrial electrical distribution panels.
- Commercial power switching installations.
- Manufacturing and process facilities.
- Low-voltage switchboards.
- Electrical control and automation assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Base mounting | |
|---|---|---|
| Device Type | Manual changeover switch | |
| Operation | Manual | |
| Series | OT Change-over Switches | |
| Product type | Manual change-over switch | |
| Order code | 1SCA022775R0900 | |
| Rated current | 250 A | |
| Number of poles | 4 poles | |
| Transition type | Open | |
| Phase distance | Wide phase distance | |
| Fourth pole position | Right side | |
| Fourth pole type | Switched - simultaneous function | |
| Operating mechanism | Mechanism at the end of the switch 04 (Left Side) | |
| Operating mode | Front operated | |
| Mounting type | Base mounting | |
| Rated operational voltage | 1000 V | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 8 kA for 1 s | |
| Rated operational current AC-21A | 250 A | |
| Rated operational current AC-22A | 250 A | |
| Rated operational current AC-23A | 250 A | |
| Rated operational power AC-23A | 140 kW at 380–415 V AC | |
| Terminal type | Screw terminals | |
| Terminal width | 20 mm | |
| Tightening torque | 15–22 N·m | |
| Handle type | Handle and shaft not included | |
| Handle colour | Black | |
| Protection rating | Front IP20 | |
| Dimensions (H × W × D) | approx. 170 × 237 × 160 mm | |
| Weight | approx. 3.99 kg |
Frequently Asked Questions
What is the ABB OT250E04WC used for?
The ABB OT250E04WC is used for manual switching and source transfer applications in low-voltage electrical distribution systems.
What current rating does this change-over switch have?
The OT250E04WC has a rated current of 250 A.
How many poles does the ABB OT250E04WC have?
This change-over switch has a four-pole configuration.
Is the handle and shaft included?
No, the OT250E04WC is supplied without handle and shaft; these accessories must be ordered separately.
What type of transition does the switch use?
The ABB OT250E04WC uses an open transition switching arrangement.
Trusted by Industry for Reliable Switching
ABB OT change-over switches are widely used in industrial and commercial electrical systems where reliable manual switching, robust construction and flexible installation options are required.
