Banner Engineering SI-QS90DHF Safety Interlock Switch is a flat-pack, door-style safety interlock designed for guarding industrial machinery, rated up to 10 A at 500 VAC. It uses two normally closed safety contacts and one normally open contact, with a wiring-chamber connection for straightforward integration into safety circuits. The compact thermoplastic housing measures 90 x 52 x 33 mm and carries an IP65 rating, operating from −30 °C to 80 °C. It is classified as Cat 4 safety equipment with a SISTEMA B10d life of 2 million and a mechanical life of 1 million operations, making it suitable for guarding-door applications in demanding environments.
