ABB OTZ400E fourth pole accessory for ABB OT315 to OT400 switch disconnectors. Genuine side-mounted accessory providing simultaneous four-pole switching.
£98.32
The ABB OTZ400E is a genuine fourth pole accessory designed for use with ABB OT315 to OT400 switch disconnectors. Manufactured to ABB's high engineering standards, it enables a 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 OTZ400E 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 400 A thermal current rating, the ABB OTZ400E is widely used in industrial switchboards, machinery, motor control centres and commercial power distribution systems where four-pole switching is required.
The ABB OTZ400E allows 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 OTZ400E ensures precise fitment, dependable operation and full compatibility with the ABB OT switch disconnector range, providing long-term reliability in demanding industrial environments.
| Manufacturer | ABB |
|---|---|
| Series | OT Switch Disconnector Accessories |
| Model | OTZ400E |
| Product type | Fourth pole accessory |
| Order code | 1SCA022749R1960 |
| Suitable for | ABB OT315...OT400 switch disconnectors |
| Current rating (Ith) | 400 A |
| Mounting type | Side mounted |
| Function | Simultaneous fourth pole switching |
| Dimensions (H × W × D) | approx. 185 × 45 × 85 mm |
| Net weight | approx. 0.59 kg |
| Country of origin | Finland |
| HS Code | 85389099 |
| Country of Manufacture | Finland |
The ABB OTZ400E is a fourth pole accessory that converts compatible ABB OT315 to OT400 three-pole switch disconnectors into four-pole versions.
It is designed for ABB OT315 to OT400 switch disconnectors.
The OTZ400E mounts directly onto the side of the compatible three-pole switch disconnector and operates simultaneously with the main contacts.
The accessory has a conventional thermal current rating of 400 A.
A fourth pole enables simultaneous switching of an additional conductor, such as the neutral, where required by the electrical installation or application.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...