The E57G-30SNC10-Q is a 30A Pool and Spa Control Relay by Eaton. It is an all-inclusive relay system designed to provide a safe, reliable way to control motors, pool and spa pumps, filter systems, cleaners, and other equipment used to maintain your pool or spa. The relay is constructed from durable and heat resistant components for use in hot, damp environments. It is designed for 120-277 VAC single-phase systems and can be used to monitor and regulate water levels, temperature, pressures, and other systems with adjustable time intervals from 1 second to 24 hours. It features an easy to install push-in wiring head, two auxiliary outputs, and a visual status indicator. The E57G-30SNC10-Q helps improve efficiency, safety, and performance of your pool or spa system.