Our largest transformer is available in a 2:1 ratio. This transformer is designed for those applications where a larger burden capability is required. It carries a 300 VA rating and can be used to protect and power a variety of endpoints, modems, underglass transmitters and a variety of other electronic equipment. This auxiliary transformer is the most robust unit we carry and provides the same protection for endpoints that our TSTM VT Pack provides against transients for wide voltage range solid state meters.