Power Supply

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Mobi.Key can be supplied either by alternating current (AC) or direct current (DC), polarity independent in a wide voltage range.

Power supply connection is available at screw terminals 19 and 20.

The power supply must not be shared with other equipment: suggested power supply source is a simple 12V AC / 10VA transformer.



Supply voltage

9,5 ... 27 V AC

9,5 ... 35 V DC

Power consumption

< 5 W peak

< 200 mW idle

Screw connector

2 x 2.5 mm2 (AWG14)




An automatic 2-pole circuit breaker or equivalent protection capable

of disconnecting circuit in the event of short circuit or over-current condition should be places on the AC mains side of power supply unit


Maximum permissible connection length between device

and low voltage supply source is 3m