The bypass isolation transfer switch is designed for applications where maintenance, inspection and testing must be performed while maintaining continuous power, such as in critical life support systems. This automatic transfer switch (ATS) allows for the quick removal of the different switching devices for inspection, maintenance or replacement.
Eaton offers two innovative solutions for these critical applications, the automatic contactor transfer switch with bypass isolation and the Magnum breaker based transfer switch with bypass isolation.
Automatic contactor transfer switch with bypass isolation
- Optional Dual ATS Functionality (automatic transfer on both ATS and Bypass switch)
- Front Accessible with top and/or bottom entry
- Optional Field interchangeable bus connections
- No load break when bypassing to the same source
- Draw-out ATS with option for fixed or draw-out bypass
- Draw-out capabilities on both ATS and Bypass portions
- Power switching devices interchangeable between ATS and Bypass portions when configured as draw-out
- Listed for application by UL and CSA
- Bypass Isolation Contactor Overview Video

Magnum breaker based transfer switch with bypass bsolation
- 30 cycle, 85ka withstand rating for selective coordination
- Draw-out capabilities on both ATS and Bypass portions
- Optional Dual ATS Functionality (automatic transfer on both ATS and Bypass switch)
- Power switching devices interchangeable between ATS and Bypass portions
- No load break when bypassing to the same source