ABB OTDC16U2 DC switch disconnector with 2-pole configuration, rated 16 A at 660 V DC and 10 A at 1000 V DC for photovoltaic, battery storage and industrial DC isolation applications.
The ABB OTDC16U2 (1SCA134369R1001) is a compact and dependable DC switch disconnector designed to provide safe isolation for photovoltaic (PV), battery storage and industrial direct current applications. As part of the proven ABB OTDC switch disconnector range, it delivers reliable DC switching performance while meeting both IEC and UL requirements for demanding installations.
Engineered for renewable energy and industrial environments, the OTDC16U2 combines compact dimensions with robust construction, making it ideal for panel builders, OEMs and electrical contractors. The switch is designed for base or DIN rail mounting and offers straightforward integration into DC control panels and combiner boxes.
With a 16 A operational rating at 660 V DC and 10 A at 1000 V DC, the ABB OTDC16U2 is ideally suited for single-circuit DC isolation in solar PV systems, battery energy storage systems and other industrial DC power installations. The terminal bolt kit is included, while the operating handle and shaft are supplied separately to suit the application.
DC switch disconnectors provide a safe method of isolating direct current circuits during maintenance and servicing. The ABB OTDC series has been specifically developed for photovoltaic systems, battery energy storage systems and industrial DC applications where dependable isolation is essential.
The OTDC16U2 combines ABB's proven switching technology with compact construction, delivering reliable electrical performance, straightforward installation and long service life in demanding operating environments.
| Current | 32 A |
|---|---|
| Voltage | 000 V |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC Switch Disconnectors |
| Model | OTDC16U2 |
| MPN | 1SCA134369R1001 |
| Product type | DC switch disconnector |
| Rated operational current | 10 A at 1000 V DC |
| UL rating | 16 A at 600 V DC |
| Number of poles | 2 |
| Mounting type | Base or DIN rail mounting |
| Protection rating | IP20 terminal protection |
| Cable size | 2.5 to 16 mm² |
| Dimensions (H × W × D) | approx. 54.8 × 54.5 × 64 mm |
| Weight | approx. 0.2 kg |
| HS Code | 85365080 |
| Country of Manufacture | Estonia |
The OTDC16U2 is a DC switch disconnector designed to safely isolate direct current circuits in photovoltaic, battery storage and industrial DC installations.
The switch is rated at 16 A at 660 V DC, 10 A at 1000 V DC and 16 A at 600 V DC under UL standards.
The ABB OTDC16U2 features a 2-pole single-circuit configuration.
No. The terminal bolt kit is supplied, while the operating handle and shaft are ordered separately to suit the installation.
It is commonly installed in photovoltaic systems, battery storage equipment, DC combiner boxes and industrial control panels requiring safe DC isolation.
ABB OTDC switch disconnectors are trusted by renewable energy engineers, electrical contractors and panel builders for providing safe, reliable DC isolation across photovoltaic and industrial power applications.
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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...