I'm putting in a job with a Tridium Enclosure (with it's own 40VA transformer),
a NPB-PWR-UN, J200, and an IO-34 that will have 3 analog output (2-10VDC) Belimo Ball
Valve Actuators (TF24-SR, 2-10VDC) that each draw 4VA. The NPB-PWR-UN, with J200
and IO-34 together draw 8.5VA. That's a total of 20.5VA on a 40VA transformer.
Seems fine to me, but I'm wondering how others lay out their 3 wire AO.
Previously, I would always use a separate transformer (with circuit breaker) and
also use separate AGC fuses for all my actuator power supplies.
But not knowing this IO-34 AO well concerns me enough to post this.
In this situation, is using the "on-board" transformer with fused power supplies to each actuator the
standard way everyone does it?