In-Rack Transfer Switch

[GenSwgrEng]

Is anyone aware of a transfer switch intended for use in an IT server rack? Rating would be 30-50A, and would need to be able to transfer in anywhere from 45ms to 45s. Can you recommend a manufacturer, or better yet provide a guideform spec? It seems to me that UL1008, emergency-system rated ATSs would be overkill. We don't need a high withstand rating, or a close-and-latch rating.

Engineers are always honest in matters of technology and human relationships. That's why it's a good idea to keep engineers away from customers, romantic interests, and other people who can't handle the truth.

 

[ScottyUK]

Socomec have a few options in that size range. I looked at them for a specific job, but haven't actually used them. Their other products have a reasonable reputation FWIW.

http://www.socomec.co.uk/static-transfer-systems_en.html

 

[dpc]

What voltage? If this is on the back-end of a UPS, you may not care about withstand rating, but watch out for situations where it might see utility power via a maintenance bypass switch.