ABB OTDC100U22 DC switch disconnector for photovoltaic, battery energy storage and industrial DC applications. Rated 1000 V DC with 100 A UL and 160 A IEC operational current.
The ABB OTDC100U22 (SKU 1SCA126180R1001) is a high performance DC switch disconnector designed for safe isolation of direct current circuits in photovoltaic (PV), battery energy storage and industrial DC applications. As part of the trusted ABB OTDC switch disconnector range, it delivers dependable switching performance for demanding installations requiring UL approval and reliable DC isolation.
Designed with a compact footprint and low power losses, the OTDC100U22 is suitable for panel builders, OEMs and renewable energy installers. The switch is supplied with a terminal bolt kit, while the operating handle and shaft are ordered separately, allowing greater installation flexibility.
With a 1000 V DC UL rating, 100 A UL operational current and 160 A IEC operational current, the OTDC100U22 provides reliable isolation for modern DC electrical systems, combining robust ABB engineering with compact base mounting construction.
The ABB OTDC100U22 is specifically designed to isolate high voltage DC circuits safely and efficiently. Its optimised switching mechanism and compact design help maximise reliability while reducing installation space, making it ideal for photovoltaic arrays, battery storage systems and industrial DC distribution.
As part of ABB's globally recognised OTDC range, this switch disconnector provides long-term operational reliability, helping engineers and panel builders meet demanding performance and safety requirements across modern electrical installations.
| Current | 160 A |
|---|---|
| Voltage | 000 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC DC Switch Disconnectors |
| Model | OTDC100U22 |
| SKU | 1SCA126180R1001 |
| Product type | DC switch disconnector |
| Rated operational current (UL) | 100 A |
| Rated operational current (IEC) | 160 A |
| Rated operational voltage | 1000 V DC |
| Number of poles | 4 |
| Mounting type | Base mounting |
| Terminal type | Bolt connection |
| Protection rating | IP20 |
| Standards | UL98B, IEC 60947-1, IEC 60947-3 |
| Dimensions (H × W × D) | approx. 262 × 185.4 × 90.5 mm |
| Weight | approx. 2.3 kg |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTDC100U22 is designed to safely isolate direct current circuits in photovoltaic systems, battery storage installations and industrial DC applications.
The switch is rated at 100 A under UL and 160 A under IEC specifications.
The ABB OTDC100U22 is designed for applications up to 1000 V DC.
No. The switch includes the terminal bolt kit, while the operating handle and shaft are supplied separately.
It is commonly installed in photovoltaic combiner boxes, battery energy storage systems, industrial DC distribution panels and renewable energy equipment.
ABB OTDC DC switch disconnectors are widely specified by renewable energy engineers, panel builders and industrial OEMs to deliver dependable DC isolation, excellent operational safety and long service life in demanding installations.
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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...