The model 14359 UL/C-UL Listed Class 2 Transformer from Foster Transformer accepts line voltages of 120, 208, 240, and 480 V, 50/60 Hz, allowing near universal application. Its 24V, 75 VA rating provides ample capacity for most low voltage control applications, and its integral wiring compartment simplifies field installations, according to the company.
Larson Electronics has released the 15 KVA power distribution panel system that converts three-phase 480 volts AC to single-phase 120 volts AC. The MGS-15KVA-120X8O-2X208Y power distribution system is designed to provide a safe and effective way for operators in industrial settings to tap into and utilize power sources independently of the work area. This unit is designed to operate with 480 VAC which then steps down to 120 VAC single phase and 208Y three phase.
Standex-Meder Electronics has released the SX41 Series of planar transformers for 500W-2KW applications. Available in standard or custom designs, the SX41 aims to deliver high performance for power conversion applications in several areas including renewable energy.
Onset has released a series of high-performance, split-core current transformers for measuring AC current and amperage in commercial building energy audits, building commissioning studies, and other applications.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.