The Hammond 166M18 is a versatile, economical single primary transformer ideal for low voltage filament applications. Designed with an open style and chassis mount, it offers easy integration into various systems. The transformer operates at 115V with a 60 Hz frequency, providing reliable power delivery. It is constructed with Class B insulation for enhanced protection and is UL listed as a Class A design. The Hammond 166 series is suitable for a wide range of industrial and commercial applications where a cost-effective and reliable transformer solution is required.