ABB OTDC25U6 DC switch disconnector with 25 A operational current, six-pole triple circuit configuration and base or DIN rail mounting for photovoltaic and industrial DC isolation.
The ABB OTDC25U6 (1SCA141960R1001) is a compact and dependable DC switch disconnector designed specifically for photovoltaic (PV) systems and industrial direct current applications. As part of the proven ABB OTDC switch disconnector range, it provides safe and reliable isolation of DC circuits while supporting efficient installation within renewable energy systems and electrical control panels.
Featuring a 6-pole triple circuit configuration, the OTDC25U6 is engineered for isolating multiple photovoltaic strings and DC power circuits. Its compact design allows both base and DIN rail mounting, while ABB's high-quality construction ensures dependable long-term performance in demanding industrial and renewable energy environments.
With a 25 A rated operational current, a 1000 V DC rated insulation voltage and robust screw terminal connections, the ABB OTDC25U6 is ideal for solar combiner boxes, PV inverter installations, battery energy storage systems and industrial DC distribution applications.
The ABB OTDC25U6 provides safe isolation of photovoltaic strings and other direct current circuits during maintenance and emergency shutdown procedures. Its robust switching mechanism delivers dependable performance while helping maintain electrical safety throughout the installation.
The triple circuit configuration makes the OTDC25U6 particularly suitable for larger photovoltaic installations where multiple DC strings require reliable isolation within a compact enclosure. Its versatile mounting options simplify installation for panel builders and renewable energy professionals.
| Current | 40 A |
|---|---|
| Voltage | 000 V |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC Switch Disconnectors |
| Model | OTDC25U6 |
| Manufacturer Part Number | 1SCA141960R1001 |
| Product type | DC switch disconnector |
| Rated operational current | 25 A |
| Rated voltage | 600 V DC UL, 660 V DC IEC, 1000 V DC IEC (16 A) |
| Rated insulation voltage (Ui) | 1000 V |
| Impulse withstand voltage (Uimp) | 8 kV |
| Number of poles | 6 |
| Configuration | Triple circuit |
| Mounting type | Base or DIN rail mounting |
| Connection type | Screw terminals (2.5 to 16 mm²) |
| Protection rating | IP20 |
| Dimensions (H × W × D) | approx. 89 × 54.8 × 109.5 mm |
| Weight | approx. 0.15 kg |
| HS Code | 85365080 |
| Country of Manufacture | Estonia |
The OTDC25U6 is designed to safely isolate direct current circuits in photovoltaic systems and industrial DC installations.
The switch has a 25 A rated operational current and supports photovoltaic applications up to 1000 V DC.
The switch supports both base mounting and DIN rail mounting, providing installation flexibility.
No. The operating handle and shaft are supplied separately and should be ordered independently.
It is commonly installed in photovoltaic combiner boxes, inverter systems, battery storage installations and industrial DC control panels.
ABB OTDC switch disconnectors are trusted worldwide by solar installers, electrical contractors and panel builders for delivering safe, reliable DC isolation in photovoltaic and industrial power systems.
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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...