Foster model 16392 UL Listed, Class 2 transformers are ideal for commercial, light industrial and residential lighting control applications. These proven transformers accept input voltages of 120/240/277/347V and deliver 24V output at 50/60Hz with 50VA capacity.  Their compact size allows them to easily fit into new or existing panels, while their robust design allows them to withstand a direct short circuit for up to 15 days without a failure.

Foster Transformer, www.Foster-Transformer.com