ABB OTDC400F02 2-pole DC switch disconnector rated at 400 A and 1000 V DC for utility-scale photovoltaic systems and industrial DC isolation.
The ABB 1SCA158194R1001, also known as the OTDC400F02, is a high-performance 2-pole DC switch disconnector designed specifically for utility-scale photovoltaic power plants and demanding industrial DC applications. Rated at 400 A with a maximum operating voltage of 1000 V DC, it provides dependable switching and safe circuit isolation for modern renewable energy systems.
Part of ABB's advanced OTDC range, the OTDC400F02 features an optimised two-pole design that reduces enclosure size whilst improving electrical efficiency. Its compact construction allows manufacturers to reduce the footprint of combiner boxes and inverter systems without compromising performance, making it ideal for high-power photovoltaic installations.
The switch incorporates a front-operated mechanism positioned at the end of the unit and is supplied ready for use with mandatory phase barriers. Compatible ABB operating handles, shafts and terminal accessories are available separately, allowing flexible installation across a wide variety of enclosure designs. Designed to IEC 60947-1 and IEC 60947-3 standards, it delivers long-term reliability in demanding environments.
High-power photovoltaic installations require switching equipment capable of safely isolating DC circuits during maintenance and emergency shutdown procedures. Selecting a purpose-designed DC switch disconnector helps maximise personnel safety while ensuring reliable long-term operation.
The ABB OTDC400F02 combines a compact footprint, high current capacity and dependable switching performance, making it an ideal solution for utility-scale solar projects, combiner boxes and industrial DC distribution systems.
| Current | 400 A |
|---|---|
| Voltage | 000 V |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC DC Switch Disconnectors |
| Product ID | 1SCA158194R1001 |
| Model | OTDC400F02 |
| Product type | DC switch disconnector |
| Rated operational voltage | 1000 V DC |
| Rated operational current (DC-21B) | 400 A |
| Rated insulation voltage (Ui) | 1500 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Short-time withstand current (Icw) | 10 kA (1 s) |
| Number of poles | 2 |
| Circuit configuration | Single circuit (2a, 2b) |
| Mounting type | Base mounting |
| Product frame size | M |
| Degree of protection | IP20 (front) |
| Operating mechanism | Front operated |
| Operating handle | Ordered separately |
| Net weight | Approx. 3.6 kg |
| Country of origin | Finland |
| Standards | IEC 60947-1, IEC 60947-3 |
| EAN | 6417019872995 |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The ABB OTDC400F02 is designed to safely isolate high-current photovoltaic circuits and other industrial direct current power systems operating up to 1000 V DC.
The switch has a 400 A rated operational current for applications operating up to 1000 V DC.
The OTDC400F02 is a 2-pole, single-circuit DC switch disconnector with a 2a, 2b connection configuration.
No. Compatible ABB operating handles and shafts are supplied separately to suit the installation and enclosure.
It is ideal for utility-scale solar power plants, combiner boxes, central inverter systems and industrial DC distribution equipment.
ABB OTDC DC switch disconnectors are trusted worldwide by solar manufacturers, EPC contractors and panel builders for dependable high-current DC isolation, compact installation and outstanding long-term operational reliability.
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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...