Transfab DO0050QG Industrial Control Transformer

The Transfab DO0050QG is a 50 VA industrial control transformer from the DO Series that provides isolated low-voltage power for machine control circuits, relays, contactors, PLCs, and automation equipment. This single‑phase, open‑type transformer operates on 50/60 Hz and is panel‑mount with screw terminals. Primary and secondary voltages are configuration dependent (model‑specific). It features laminated steel core construction, Class B insulation (130°C), and a vacuum varnish impregnated (VVI) winding construction with an 80°C temperature rise rating. Built for rugged industrial environments, it is commonly used in industrial automation, manufacturing equipment, OEM machinery, and electrical control panels to step down line voltage while providing electrical isolation for relays, motor starters, PLC I/O circuits, and other control devices. Common replacements include Hammond Power Solutions 50 VA Control Transformer, Schneider Electric 50 VA Control Transformer, and Acme Electric 50 VA Industrial Control Transformer.