At 1/16/2007 14:49, you wrote: >Hi Bob, > >Depending on the supply and system capacity... proper location >and size of fuse or circuit breakers is prudent. The better >protection might be an integrated crowbar type circuit in a full >hard shunt configuration unless some type of auto breaker reset >function is smartly engineered in. Or possible combinations >there_of...
Agreed, Skipp. Unfortunately, I got a reply from Samlex saying the OVP is of a feedback type, not a crowbar, which explains Jeff's experience with the SEC-1212. A long time ago I happened to find a crowbar "bar" made by Lambda at the local TRW swap meet. I added it to a supply without built-in OVP to add said protection to the equipment. I wonder if similar devices are commonly available somewhere? That & a fuse on the output of an SEC-1223 & I think I'd feel comfy using it at one of my sites. Bob NO6B
