STACO Energy 1010B-2 Variable Autotransformer

The STACO Energy 1010B-2 Variable Autotransformer is a bench-top, single-phase autotransformer that delivers a continuously adjustable 0–280 VAC output from a 240 VAC input. Part of the 1010 Series, it uses rotary carbon brush regulation and natural air convection cooling, with open-frame or metal-housing enclosures depending on configuration. Designed for testing, calibration, and industrial power control, this unit is commonly installed in laboratories, repair facilities, manufacturing plants, and educational institutions to power motors, transformers, power supplies, electronic equipment, heaters, and lighting with precise voltage control. Key specifications include 50/60 Hz operation, 240 VAC input, 0–280 VAC output, continuous duty cycle, single-phase operation, and bench-top mounting; enclosure options vary by configuration; and it carries UL Recognized and CSA Certified listings where applicable to the series. Availability spans new, used, and surplus inventory.