Acme T-1-81065 .50KVA General Purpose Transformer
With the Siemens QSPD2A065P, you will find that breaker alignment stays consistent.
ACME TRANSFORMER TA 2 81327 Primary 208480 VAC Secondary 24 Volt 500 VA Single
What stands out about this breaker is the smooth waterproof cover that snaps on.
ACME TRANSFORMER TA 2 81006 Control Transformer 750 VA Input 220 240 480 600 VAC
A nice touch is that the Soillar tag sits flush, so it does not snag on wires.