ABB OTHV400E12W three-pole 400A switch disconnector for 800–1000 V AC industrial electrical isolation.
The ABB OTHV400E12W, product code 1SCA162986R1001, is a heavy-duty three-pole switch disconnector designed for safe electrical isolation and reliable switching in industrial installations operating between 800 and 1000 V AC. As part of the proven ABB OTHV high-voltage switch disconnector range, it is engineered for demanding applications including industrial power distribution, renewable energy systems, process automation and OEM machinery.
This front-operated, base-mounted switch disconnector provides dependable manual isolation while allowing installers to select the most suitable external operating mechanism for their enclosure. The operating handle and shaft are supplied separately, providing maximum flexibility for switchboard manufacturers and panel builders.
With a 400 A rated operational current for AC-21A and AC-22A applications, a 200 A AC-23A rating, 12 kV impulse withstand voltage and robust ABB construction, the OTHV400E12W delivers long-term reliability for high-voltage industrial applications.
The ABB OTHV400E12W is designed to provide dependable manual isolation of industrial electrical circuits before maintenance or servicing. Its three-pole design ensures reliable switching performance in demanding industrial environments while helping improve personnel safety and minimise downtime.
The modular design enables installers to pair the switch with ABB operating shafts and handles that best suit the enclosure, making it ideal for industrial switchboards, OEM equipment, renewable energy systems and high-voltage power distribution installations.
| Current | 400 A |
|---|---|
| Voltage | 800 V |
| Phase | Three Phase |
| IP Rating | IP00 |
| Manufacturer | ABB |
| Series | OTHV |
| Model | OTHV400E12W |
| Manufacturer Part Number | 1SCA162986R1001 |
| Product Type | Switch Disconnector |
| Number of Poles | 3 |
| Operation | Front operated |
| Mounting | Base mounted |
| Rated Operational Voltage | 800–1000 V AC |
| Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Current (AC-21A / AC-22A) | 400 A |
| Rated Operational Current (AC-23A) | 200 A |
| Rated Impulse Withstand Voltage (Uimp) | 12 kV |
| Short-Circuit Making Capacity (Icm) | 65 kA |
| Short-Time Withstand Current (Icw) | 15 kA for 1 second |
| Terminal Type | 25 mm lug terminals |
| Mechanical Durability | 16,000 operations |
| Protection Rating | IP00 |
| Dimensions (H × W × D) | 220 × 221 × 107 mm |
| EAN | 6417019929385 |
| Country of Origin | Finland |
| Handle & Shaft | Not included (ordered separately) |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
It provides safe manual switching and electrical isolation for industrial systems operating between 800 and 1000 V AC.
This model features a three-pole switching configuration for industrial three-phase systems.
No. The operating handle and shaft are supplied separately, allowing installers to select the most suitable accessories.
The switch is rated at 400 A for AC-21A and AC-22A applications and 200 A for AC-23A applications.
It is commonly installed in industrial switchboards, electrical control panels, renewable energy systems and OEM machinery requiring safe high-voltage isolation.
ABB OTHV switch disconnectors are trusted by panel builders, OEM manufacturers and electrical engineers for dependable electrical isolation, robust switching performance and long-term industrial reliability.
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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...