Explosion-proof manual fire alarm DKM

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>Area of application: Control of mechanical smoke extraction systems with/without ERK >Indicators: green LED "Operation indicator" red LED "Smoke alarm" yellow LED "Collective fault". >Operating voltage: 24 V AC ± 10% >Button pressed: "ERK OPEN", "Smoke extraction fan ON". >Button unlocked: Automatic >Switching voltage: 24 VAC/DC >Switching current: 1 A >tripping resistance: 1.5 k >Terminal resistance: 1 k >Contact SI: max. 24 V >Protection class: IP 54 >Terminals: max. 1.5 mm 2 >Cable entry at top and bottom: Connection via cable gland d=9-13mm or on-site screw connection M20x1.5 Push-button alarm panels are used for manual triggering and commissioning of the smoke protection pressure system via the triggering and evaluation unit. The connection path between control unit and push-button detector is monitored for cable break and short circuit. LEDs indicate the status of the pushbutton detector. Green LED for operating indication Red LED for smoke alarm Yellow LED for collective fault Push-button alarms can be individually labelled and are available in the following colours, depending on the field of application: DKM blue, DKM grey, DKM orange, DKM yellow.