The 370 series is available in a full range of voltages to meet your requirements; 12, 24, 36, 36/48, 48 or 72-volts. There is a large selection of mounting brackets available. If your company requires a special bracket, Wolo can tool to your needs. The 370 series is constructed of All metal, with a durable painted black finish. Terminals can be either screw type, 1/4 in. Push-on or two terminals per pole using screw post and 1/4 in. Push-on. The diameter is 123 mm. Available in either high or low tone. Ul recognized