The Berner 9503SD025-PR-A is a reliable plunger/roller door switch designed for versatile applications. It features a NEMA 1 rating, ensuring protection against dust and indirect splashes. With a maximum amp draw of 20 amps, this switch operates efficiently within a voltage range of 120-240V for single-phase systems. Its durable construction and responsive design make it ideal for controlling door mechanisms in various environments.