Manual change-over switches, I-O-II -operation, OT Series

A secure power supply is essential to any application relying on electricity. We offer a full range of smart, safe and reliable change-over switches for your critical applications.

Comprehensive offering
ABB offers a wide variety of switches to cover all your needs. A complete range from 16 to 3200 Amperes in manual, remote, and automatic switches is further enhanced by vast amounts of additional accessories ranging from advanced controllers to auxiliary contacts.

Reliable performance
ABB change-over, bypass, and transfer switches are designed, built, and tested for the best possible performance. Switches are designed to be virtually maintenance free across their entire extended lifespan and offer reliable performance in any and all possible circumstances. Durability has been ensured by testing switches against the IEC 60947-6-1 standard.

Smart and compact design
All switches have been designed for easy and cost-efficient installation, maintenance, and use. Their modular design and smaller dimensions enable installation into smaller enclosures saving precious space and significantly reducing material, handling, and installation costs. The simple design also makes use easy even without previous experience or training.

Safe operations
ABB change-over, bypass and transfer switches come equipped with a comprehensive range of inbuilt safety features such as mechanical interlock. All motorized and automatic switches can also be operated manually in emergency situations, but can also be padlocked when the handle is removed to prevent unwanted manual or remote operations or enable safe maintenance work