KNX power supplies

Power supply, 102400
KNX power supply 320 mA with integrated choke
KNX uninterruptible power supply 640 mA

Gira KNX power supply 640 mA with 2 integrated chokes

Gira offers a broad range of power supplies for a wide variety of applications. They are used to generate the KNX system voltage or supply power to individual components such as the rain sensor or the built-in heating of the wind sensor 0–10 V.


KNX power supply 160 mA with integrated choke

The KNX power supply 160 mA with integrated choke has a DC 30 V output for supplying additional devices. Rated current can be split up amongst outputs as desired. The power supply is short-circuit-proof, overvoltage-proof and open-circuit proof. It is suitable for operation in systems with emergency power supply.

Technical data for the KNX power supply 160 mA



KNX power supply 320 mA with integrated choke

The power supply 320 mA with integrated choke has one unchoked and one choked output. The unchoked output can be used to supply another line or for function devices (e.g. SmartSensor) that require an auxiliary voltage. Any desired load distribution on the outputs (choked or unchoked) is possible, however the total rated current of 320 mA may not be exceeded. The outputs are equipped with shared overload or short-circuit protection. Connection is made via KNX bus connection or junction terminals. A data rail is not required in this respect.

Technical data for the KNX power supply 320 mA



KNX power supply 640 mA with 2 integrated chokes

The same product features apply for the power supply 640 mA with 2 integrated chokes as for the KNX power supply 320 mA with integrated choke. However, in addition to one unchoked output, it also has two choked outputs.

Technical data for the KNX power supply 640 mA (choke)



KNX power supply 1280 mA with integrated choke

The KNX power supply 1280 mA also has a zero-voltage signal contact for operating and diagnostic messages. Like the 160 mA, 320 mA and 640 mA versions, it can be connected in parallel with KNX power supplies of the same type.

Technical data for the KNX power supply 1280 mA



KNX uninterruptible power supply 640 mA

The uninterruptible power supply 640 mA is equipped with an integrated choke to decouple the bus line from the power supply. It also has connections for a rechargeable lead-acid battery to buffer the KNX voltage in case of mains failure. Up to two rechargeable lead-acid batteries can be connected and charged via the uninterruptible power supply. The charging voltage is controlled on the basis of temperatures using a temperature sensor. The uninterruptible power supply has a zero-voltage changeover switch for reporting a fault (e.g. mains failure, battery failure, overload or short circuit). Connection is made via KNX bus connection or junction terminals. A data rail is not required in this respect.

Technical data for the KNX uninterruptible power supply 640 mA


Power supply

The power supply for the weather station and the built-in heating of the wind sensor 1-10 V can be used as a DRA device for the rain sensor 0/10 V and similar components from the Gira product range.

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