Guardian Electric A490-367460-15 is a 16 Amp, single pole, shunt trip, power interlock switch. It operates up to 30 Volts DC or 120/277 Volts AC and is UL listed. This switch is designed for direct mount, and has a manual override lever. It features a red/yellow LED indicating lamp. The switch can be mounted on enclosures, DIN rails, conduits, and junction boxes in applications such as commercial and institutional buildings for motor control and the protection of firefighters.