Square D 9070T300D3 Industrial Control Transformer

Square D 9070T300D3 is a Type T industrial control transformer rated at 300 VA, providing 208 V primary input and 120 V secondary output in a single‑phase configuration for control circuits in panels and machine controls. Designed for compact installations, it uses an open enclosure with panel‑mounting capability and screw clamp wiring terminals for reliable field connections. The unit operates at 50/60 Hz with insulation rated to 130 °C and an 80 °C rise, delivering efficient power conversion in demanding industrial environments. Its compact dimensions measure 3.84 in high by 4.50 in wide by 4.74 in deep, and it offers an efficiency around 90.3% under typical load. Ideal for powering relays, contactors, timers, and other 120 V control devices from a 208 V supply, this transformer is part of Square D’s 9070 Series and is tailored for small‑to‑medium control panels where space and cost are a consideration.