Control Transformer, 50VA, 480VAC: Electronic Transformers: Amazon.com: Industrial & Scientific
Control Transformer, 50VA, 2.69 in. H: Indoor Lighting Low Voltage Transformers: Amazon.com: Tools & Home Improvement
50 VA Micro Transformer - 480V Input Voltage - 120V Output Voltage - - Amazon.com
Square D 9070T50D13 Control Transformer, 50Va, 12/24Vac - Electronic Power Transformers - Amazon.com
Control Transformer, 50VA, 120/240VAC: Electronic Transformers: Amazon.com: Industrial & Scientific
24VAC 50VA Wall Transformer with PTC Fuse Compatible with All Versions of Doorbell,Nest, Ecobee, Sensi and Honeywell Thermostat,Water Solftener,Screw Terminal Output - - Amazon.com