KNX power supply 640 mA uninterruptible

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Discontinued item. Available until 10/2022.

Necessary accessories

rech.lead acid bat. 12 V 12 Ah basic cab.set

Optional accessories

extension cab.set

Power supplies for supplying KNX devices with bus voltage.

Features

Output with integrated choke to supply KNX bus lines.
Output DC 30 V to supply additional devices.
Rated current can be flexibly split up amongst outputs.
Reset button.
Short-circuit-proof.
Overvoltage protection.
Open circuit-proof.
Suitable for operation in systems with emergency power supply.
Isolated signal contact for operating message and diagnostic message.
The uninterruptible power supply 640 mA generates the KNX system voltage.
With integrated choke for de-coupling the bus line from the power supply.
With connections for a lead-gel rechargeable accumulators for buffering KNX voltage in case of a mains failure.
Up to two lead-gel rechargeable accumulators can be connected and charged via the uninterruptible power supply.
The charging voltage is controlled depending on the temperature using a temperature sensor.
The uninterruptible power supply has a zero-voltage 2-way switch for reporting a fault (e.g. mains failure, battery failure, overload, or short circuit).

Technical data

Rated voltage

AC:

AC 200 to 240 V, 50/60 Hz

DC:

DC 240 to 250 V

Output voltage

KNX line:

DC 28 to 31 V SELV

Additional output:

DC 30 V

Signal output

AC switching voltage:

AC 12 to 230 V

Switching voltage DC:

DC 2 to 30 V

Switching current:

5 mA to 2 A

Connections

KNX:

Connection and junction terminal

Mains voltage:

Screw terminals

Connections:

max. 4 mm²

Ambient temperature:

-5 °C to +45 °C

Primary rated voltage:

AC 230 V, 50 / 60 Hz

Secondary rated voltage:

DC 28 to 31 V SELV

Secondary rated current:

640 mA, short-circuit-proof

Zero-voltage 2-way switch:

AC 230 V, 6A

Zero-voltage 2-way switch:

DC 12/24 V, 4 A

Connections

KNX:

Connection and junction terminal

Load:

Screw terminals

Connections:

max. 4 mm²

Notes

Installation on DIN top-hat rail.
VDE approval in accordance with EN 60669-1, EN 60669-2-1.
Connection is made via KNX bus connection or junction terminals (no data rail required).
Recommendation: Overvoltage protection for Gira KNX products.
Overvoltage diverter BUStector BT 24, manufacturer: DEHN + SÖHNE, Article No. 925001.

Scope of supply

KNX connection and junction terminal included in the scope of supply.

Dimensions

Modular widths (MW):

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