ABB OTDC500F22 500 A, 1000 V DC switch disconnector with 4-pole double-circuit configuration for photovoltaic, battery energy storage and industrial DC isolation.
The ABB OTDC500F22 (SKU 1SCA158302R1001) is a high-capacity DC switch disconnector engineered for the safe isolation of direct current circuits in utility-scale photovoltaic (PV) installations, battery energy storage systems (BESS) and industrial DC applications. As part of ABB's advanced OTDC switch disconnector range, it delivers outstanding switching performance, reduced power losses and a compact design for modern renewable energy systems.
Designed for demanding 1000 V DC installations, the OTDC500F22 features a 4-pole double-circuit (4a / 4c) configuration that enables safe isolation of two PV strings within a single compact device. Its optimised contact system reduces enclosure size while improving overall system efficiency. Phase barriers are supplied as standard, while operating handles and shafts are available separately to suit individual installations.
With a 500 A rated operational current, robust mechanical construction and compliance with IEC 60947-1 and IEC 60947-3, the OTDC500F22 provides dependable DC isolation for renewable energy infrastructure and industrial power systems.
The ABB OTDC500F22 has been specifically developed for modern utility-scale photovoltaic installations where high current capacity, compact dimensions and reliable DC switching are essential. Its optimised four-pole architecture allows engineers to reduce combiner box and inverter sizes while maintaining excellent electrical performance.
As part of ABB's latest OTDC M-Series, the OTDC500F22 delivers outstanding electrical endurance, reduced switch losses and dependable long-term operation for photovoltaic, battery storage and industrial DC power systems.
| Current | 500 A |
|---|---|
| Voltage | 000 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC DC Switch Disconnectors |
| Model | OTDC500F22 |
| SKU | 1SCA158302R1001 |
| Product type | DC switch disconnector |
| Rated operational current (DC-21B) | 500 A |
| Rated operational current (DC-PV2) | 500 A |
| Rated operational voltage | 1000 V DC |
| Rated insulation voltage (Ui) | 1500 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 4 |
| Number of circuits | 2 |
| Circuit arrangement | 4a / 4c |
| Mounting type | Base mounting |
| Operation | Front operated |
| Protection rating | IP20 |
| Mechanical durability | 10,000 operating cycles |
| Weight | Approx. 5.94 kg |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTDC500F22 safely isolates high-current DC circuits in photovoltaic power plants, battery energy storage systems and industrial DC installations.
The switch is rated at 500 A for both DC-21B and DC-PV2 applications.
The switch is designed for direct current systems operating at up to 1000 V DC.
No. Phase barriers are supplied as standard, while compatible handles and shafts are ordered separately.
It is widely installed in photovoltaic combiner boxes, utility-scale solar farms, battery energy storage systems and industrial DC distribution equipment.
ABB OTDC switch disconnectors are trusted worldwide by renewable energy developers, electrical engineers and panel builders for delivering safe, reliable and efficient DC isolation across demanding photovoltaic and industrial DC 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...