.The HF18FF/A200-4Z1GD with Relays Through Hole RoHS manufactured by Hongfa is an industrial grade relay made with high quality components. It features a sealed, light-weight plastic housing that is designed to protect the device from dust, dirt, moisture and other environmental conditions. Additionally, its small size and low profile enable it to be used in a variety of applications. The relay is rated for 120VAC/240VAC operation. It is RoHS compliant and UL certified. It is suitable for use in automation and control systems. Additionally, it can be used to switch high voltage/current loads, as well as control indications.