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1SCA111494R1001 ABB 800A 3 Pole Switch Disconnector
ABB OT800U21 800A three pole switch disconnector designed for reliable industrial electrical switching and isolation applications.
£1,379.77
Why Choose the ABB OT800U21 Switch Disconnector?
The ABB OT800U21 is a heavy-duty 800 A switch disconnector designed for reliable manual isolation and switching of high-current electrical circuits in industrial power distribution systems. As part of the trusted ABB OT switch disconnector series, it provides robust performance for demanding low-voltage applications requiring dependable circuit control.
This switch disconnector features a three-pole construction, front operation and a mechanism positioned between the poles. The OT800U21 is engineered for industrial switchgear assemblies, providing safe electrical isolation and reliable switching performance for power distribution, machinery and infrastructure applications.
With a rated current of 800 A, a 3-pole configuration, UL 710 kW rating and a 21 operating mechanism between the poles, the ABB OT800U21 is suitable for high-power electrical installations where reliable manual switching is required.
Key Advantages
- High-current 800 A switch disconnector for industrial applications.
- 3-pole configuration for reliable circuit isolation.
- Suitable for high-power motor and distribution applications.
- Front-operated mechanism for convenient manual switching.
- Handle and shaft ordered separately for installation flexibility.
- Robust ABB construction for demanding electrical environments.
Key Features
- ABB OT800 switch disconnector series.
- 800 A rated current.
- 3-pole switch disconnector configuration.
- 21 (Between the Poles) operating mechanism.
- UL 710 kW rating.
- Front-operated switching mechanism.
- Handle and shaft not included.
- Base mounting design.
- Lug terminal connections.
Reliable Switching and Isolation for Industrial Power Systems
Switch disconnectors such as the ABB OT800U21 provide safe manual isolation and switching of high-current electrical circuits. They allow maintenance personnel to disconnect equipment and control power distribution systems without integrated fuse protection.
The ABB OT series is designed for electrical engineers, panel builders and industrial installers requiring dependable high-current switching equipment. Its robust construction, front operation and compliance with international standards support reliable performance in demanding applications.
Typical Applications
- Industrial power distribution boards.
- Motor control centres.
- Machinery isolation systems.
- Switchgear assemblies.
- Commercial and industrial electrical installations.
- High-current low-voltage isolation applications.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OT800 Switch Disconnectors | |
| Product type | Non-fusible switch disconnector | |
| Rated current | 800 A | |
| Number of poles | 3P | |
| Operating mechanism | 21 (Between the Poles) | |
| Operation | Front operated | |
| Mounting type | Base mounting | |
| Handle type | Handle and shaft not included | |
| Terminal type | Lug terminals | |
| Rated insulation voltage | 1000 V | |
| Rated operational voltage | Up to 600 V AC UL/CSA | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 50 kA for 1 s | |
| Power loss | 29 W per pole | |
| Mechanical durability | 6000 operations | |
| Standards | IEC 60947-3 / UL 98 / CSA C22.2 No.4 | |
| Protection rating | IP00 front | |
| Dimensions (H × W × D) | approx. 250 × 266 × 140 mm | |
| Weight | approx. 6.1 kg |
Frequently Asked Questions
What is the ABB OT800U21 used for?
The ABB OT800U21 is an 800 A switch disconnector used for manual switching and safe isolation of high-current electrical circuits.
How many poles does this switch disconnector have?
The OT800U21 features a 3-pole switch disconnector configuration.
Is the handle included with the ABB OT800U21?
No, the ABB OT800U21 requires the handle and shaft to be ordered separately.
What operating mechanism does this switch use?
The OT800U21 uses a 21 operating mechanism positioned between the poles.
Where is this switch disconnector typically installed?
The ABB OT800U21 is typically installed in industrial switchgear, power distribution systems and machinery isolation applications.
Trusted by Electrical Engineers Worldwide
ABB OT switch disconnectors are widely used in industrial installations to provide reliable manual switching and safe isolation for high-current electrical circuits.
