The Square D 9050 JCK-15V20 Timing Relay is a high-quality electrical component designed for industrial applications. With a maximum amperage of 20A and a single-phase operation, this relay is suitable for interior use in various commercial and industrial settings. Made in the United States by Square D, a reputable brand in electrical equipment and supplies, this plug-in relay is a reliable and durable option for controlling and timing electrical systems with precision and efficiency.