Most systems for control, be it a PLC or some kind of BMS use relays on the output. I find this quite noisy, even when the switchgear where the equipment sits is behind a wall you can hear the relays. On the controller side of things, it's simple to "pull out" the relays and control the outputs with transistors (or buy a PLC with transistor outputs), the problem is what hardware to use for 230V switching. The assumption is a lamp (wall lamp) is about 60W, let's say a large chandelier about 400W which would give some less than 2A maximum current.
The question is what kind of READY electronic relay elements to use which can be mounted in the switchgear on TS35 rails. They definitely need to be less than 1 module wide and at the same time not get too hot. sSD "cubes" about the size of a cigarette box are out right away. They are too large, require heat sinks or rather cumbersome mounting and have switching currents of 20-50A (much too large for this application). I don't want to play with building "modules" with a triac and optotriac inside, I would like something ready-made.
The question is what kind of READY electronic relay elements to use which can be mounted in the switchgear on TS35 rails. They definitely need to be less than 1 module wide and at the same time not get too hot. sSD "cubes" about the size of a cigarette box are out right away. They are too large, require heat sinks or rather cumbersome mounting and have switching currents of 20-50A (much too large for this application). I don't want to play with building "modules" with a triac and optotriac inside, I would like something ready-made.
... the silent cycling of the relay contacts, which is disturbing.
