rkicklighter
Member
I've done an hour or so of searching and can't seem to find what our customer is looking for.
They have a critical control panel with 2 separate 120 VAC 20 amp feeds, one MCC and one UPS.
What they want is an automatic transfer switch for these 2 feeds. Something I would normally do with a DPDT power relay, holding the coil closed with the primary power source.
They don't like that idea and want a true ATS. There is something in place already that's been there for 20+ years. No markings, name, manufacturer, etc. It is believed to be a home-brew solution from the early 90's.
Anyone know where I can find a 20 to 30 amp ATS, single phase, panel mount, hard wired, with Primary and Secondary power feeds. Something like a 80% switch and 90% pickup rating. Preferably adjustable and preferably with dry contacts for Feed A OK, Feed B OK and Alarm.
In my searching I found one from TSI Power that may work. Most others are in NEMA enclosures that won't fit in the cabinet without major modifications.
Thanks!
They have a critical control panel with 2 separate 120 VAC 20 amp feeds, one MCC and one UPS.
What they want is an automatic transfer switch for these 2 feeds. Something I would normally do with a DPDT power relay, holding the coil closed with the primary power source.
They don't like that idea and want a true ATS. There is something in place already that's been there for 20+ years. No markings, name, manufacturer, etc. It is believed to be a home-brew solution from the early 90's.
Anyone know where I can find a 20 to 30 amp ATS, single phase, panel mount, hard wired, with Primary and Secondary power feeds. Something like a 80% switch and 90% pickup rating. Preferably adjustable and preferably with dry contacts for Feed A OK, Feed B OK and Alarm.
In my searching I found one from TSI Power that may work. Most others are in NEMA enclosures that won't fit in the cabinet without major modifications.
Thanks!
