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1SCA022735R9420 ABB OTZ250E FOURTH POLE
ABB OTZ250E fourth pole accessory for ABB OT160E to OT250E switch disconnectors. Genuine side-mounted accessory providing simultaneous four-pole switching.
£48.37
Why Choose the ABB OTZ250E Fourth Pole?
The ABB OTZ250E is a genuine fourth pole accessory designed for use with ABB OT160E to OT250E switch disconnectors. Manufactured to ABB's high engineering standards, it enables a compatible three-pole switch disconnector to be converted into a four-pole configuration with simultaneous switching of all poles, making it ideal for low voltage power distribution and industrial isolation applications.
Designed for seamless integration with ABB OT series switch disconnectors, the OTZ250E mounts directly onto the side of compatible three-pole switches without increasing phase spacing. This genuine ABB accessory delivers dependable mechanical operation whilst maintaining the performance and safety characteristics of the original switchgear.
With a 250 A conventional thermal current rating, the ABB OTZ250E is widely used in industrial switchboards, machinery, motor control centres and commercial electrical installations where four-pole switching is required.
Key Advantages
- Genuine ABB fourth pole accessory.
- Converts compatible three-pole switches into four-pole switch disconnectors.
- Designed for ABB OT160E to OT250E switch disconnectors.
- Simultaneous operation with the main contacts.
- Side-mounted installation without increasing phase spacing.
- Ideal for industrial and commercial isolation applications.
Key Features
- ABB OTZ fourth pole series.
- Additional fourth switching pole.
- 250 A conventional thermal current.
- Compatible with ABB OT160E...OT250E switch disconnectors.
- Side-mounted accessory.
- Mechanical operation linked to the main switch.
- Order code: 1SCA022735R9420.
- Manufactured to ABB low voltage switchgear standards.
Reliable Four-Pole Switching for Industrial Installations
The ABB OTZ250E enables compatible three-pole ABB OT switch disconnectors to operate as four-pole devices, ensuring all poles switch simultaneously. This makes it suitable for applications where switching the neutral conductor alongside the phase conductors is required for safe electrical isolation.
As a genuine ABB accessory, the OTZ250E provides precise fitment, dependable operation and full compatibility with ABB OT switch disconnectors, ensuring long service life in demanding industrial environments.
Typical Applications
- Industrial switchboards.
- Power distribution systems.
- Motor control centres.
- Machine building and OEM equipment.
- Commercial electrical installations.
- Main isolation and disconnect applications.
Technical Specifications
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| Device Type | Switch Disconnector | |
|---|---|---|
| Product Series | ABB OT | |
| Manufacturer | ABB | |
| Series | OT Switch Disconnector Accessories | |
| Model | OTZ250E | |
| Product type | Fourth pole accessory | |
| Order code | 1SCA022735R9420 | |
| EAN | 6417019238340 | |
| Suitable for | ABB OT160E...OT250E switch disconnectors | |
| Current rating (Ith) | 250 A | |
| Mounting type | Side mounted | |
| Function | Simultaneous fourth pole switching | |
| Dimensions (H × W × D) | 150 × 35 × 70 mm | |
| Net weight | 0.35 kg | |
| Country of origin | Finland | |
| HS Code | 85389099 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB OTZ250E used for?
The ABB OTZ250E is a fourth pole accessory that converts compatible ABB OT160E to OT250E three-pole switch disconnectors into four-pole versions.
Which switch disconnectors is it compatible with?
It is designed for ABB OT160E to OT250E switch disconnectors.
How is the fourth pole installed?
The OTZ250E mounts directly onto the side of the compatible three-pole switch disconnector and operates simultaneously with the main contacts.
What is the current rating?
The accessory has a conventional thermal current rating of 250 A.
Why would a fourth pole be required?
A fourth pole enables simultaneous switching of an additional conductor, such as the neutral, where required by the electrical installation or application.
Trusted by Electrical Professionals Worldwide
ABB OT switch disconnector accessories are trusted by panel builders, electrical contractors and industrial engineers for their quality, safety and seamless compatibility with ABB low voltage switchgear.
