ABB OTDC400F33 400 A, 1000 V DC switch disconnector with 6-pole triple-circuit configuration for photovoltaic, battery energy storage and industrial DC isolation.
The ABB OTDC400F33 (SKU 1SCA158287R1001) is a high-performance DC switch disconnector engineered for the safe isolation of direct current circuits in utility-scale photovoltaic (PV) power plants, battery energy storage systems (BESS) and industrial DC applications. As part of ABB's advanced OTDC switch disconnector range, it combines outstanding switching performance, compact dimensions and long-term reliability for demanding renewable energy installations.
Designed for 1000 V DC systems, the OTDC400F33 features a 6-pole triple-circuit (7a / 7e) configuration, enabling three independent PV strings to be isolated using a single compact switch. This reduces combiner box size, simplifies inverter layouts and improves overall installation efficiency. Phase barriers are supplied as standard, while operating handles and shafts are ordered separately.
With a 400 A rated operational current, 1500 V insulation voltage and compliance with IEC 60947-1 and IEC 60947-3, the OTDC400F33 delivers dependable DC isolation for modern photovoltaic infrastructure and industrial DC systems.
The ABB OTDC400F33 has been specifically developed for large-scale photovoltaic systems where multiple DC strings require safe isolation within a compact enclosure. Its six-pole, triple-circuit architecture enables engineers to simplify combiner box layouts while maintaining excellent electrical performance and dependable switching reliability.
As part of ABB's latest OTDC M-Series, the OTDC400F33 delivers reduced switch power losses, straightforward installation and outstanding operational reliability, making it an excellent choice for renewable energy developers, OEM panel builders and industrial DC system integrators.
| Current | 400 A |
|---|---|
| Voltage | 000 V |
| IP Rating | IP20 |
| Manufacturer | ABB |
| Series | OTDC DC Switch Disconnectors |
| Model | OTDC400F33 |
| SKU | 1SCA158287R1001 |
| EAN | 6417019873923 |
| Product type | DC switch disconnector |
| Rated operational current (DC-21B) | 400 A |
| Rated operational voltage | 1000 V DC |
| Rated insulation voltage (Ui) | 1500 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 6 |
| Number of circuits | 3 |
| Circuit arrangement | 7a / 7e |
| Mounting type | Base mounting |
| Operation | Front operated |
| Connection type | Bolt connection |
| Protection rating | IP20 |
| Mechanical durability | 10,000 operating cycles |
| Weight | 8.47 kg |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The OTDC400F33 safely isolates three high-current DC circuits in photovoltaic power plants, battery energy storage systems and industrial DC installations.
The switch has a 400 A rated operational current.
The switch is designed for direct current systems operating at up to 1000 V DC.
No. Phase barriers are supplied as standard, while compatible operating handles and shafts are supplied separately.
It is widely installed in utility-scale solar farms, PV combiner boxes, 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.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...