ABB OTDC250GV11 compact 2-pole DC switch disconnector rated at 250 A for DC-21B and 200 A for DC-PV1 applications at 1500 V DC, suitable for photovoltaic, battery storage and industrial DC systems.
The ABB 1SCA161996R1001, also known as the OTDC250GV11, is a compact, high-efficiency 2-pole DC switch disconnector developed for photovoltaic, battery energy storage and industrial direct current systems operating at up to 1500 V DC. It is rated at 250 A for DC-21B applications and 200 A for DC-PV1 photovoltaic applications, providing dependable switching and secure electrical isolation in demanding installations.
Part of ABB's OTDC S2.0 range, the OTDC250GV11 uses an optimised two-pole design that can reduce switch losses by up to 70% compared with conventional solutions. Its compact construction also helps panel builders reduce enclosure dimensions while maintaining the performance required for modern high-voltage DC systems.
The switch features a front-operated mechanism positioned between the poles and supports either bottom-in/top-out or top-in/bottom-out cable arrangements. Compatible ABB operating handles and shafts can be selected separately, allowing the unit to be configured for the requirements of the enclosure or control panel.
The increasing use of 1500 V DC architectures in utility-scale solar arrays and battery energy storage systems places greater demands on switching equipment. A purpose-designed DC switch disconnector enables maintenance teams to isolate circuits safely while helping equipment manufacturers minimise conduction losses and enclosure space.
The ABB OTDC250GV11 combines a compact frame with optimised electrical performance, making it particularly suitable for installations where efficiency, panel density and dependable high-voltage DC isolation are essential.
| Current | 250 A |
|---|---|
| Voltage | 500 V |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC S2.0 |
| Product ID | 1SCA161996R1001 |
| Model | OTDC250GV11 |
| Product type | DC switch disconnector |
| Rated operational voltage | 1500 V DC |
| Rated operational current, DC-21B | 250 A |
| Rated operational current, DC-PV1 | 200 A |
| Number of poles | 2 |
| Number of circuits | 1 |
| Connection configuration | 2a, 2b |
| Connection direction | Bottom in/top out or top in/bottom out |
| Operation | Front operated |
| Mechanism position | Between the poles |
| Mounting type | Base mounting |
| Product frame size | S2.0 |
| Product height | 165 mm |
| Product width | 146 mm |
| Product depth | 120 mm |
| Net weight | Approx. 1.7 kg |
| EAN | 6417019920832 |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The ABB OTDC250GV11 is used to switch and safely isolate photovoltaic arrays, battery energy storage equipment and other high-voltage DC circuits operating at up to 1500 V DC.
It is rated at 250 A for DC-21B applications and 200 A for DC-PV1 photovoltaic applications at 1500 V DC.
The OTDC250GV11 is a 2-pole, single-circuit DC switch disconnector with its operating mechanism positioned between the poles.
Yes. The switch supports bottom-in/top-out and top-in/bottom-out connection arrangements, providing flexibility when designing a panel or enclosure.
The switch body is designed for use with compatible ABB operating handles and shafts, which should be selected separately to match the enclosure depth and operating requirements.
ABB OTDC switch disconnectors are trusted by solar equipment manufacturers, panel builders and electrical engineers for efficient high-voltage DC switching, compact installation and dependable circuit isolation.
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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...