Siemens N 125/02 KNX Power Supply Bus 160 mA with extra 29Vdc
€125,21 Incl. tax €240,79 Incl. tax. Out of stock, but available
Specifications
Information
Siemens Power Supply Unit 29V DC, 160 mA with Additional Output without Choke
This component is a 160 mA KNX bus power supply with an integrated choke. It provides the necessary 29V DC for KNX bus systems, while the integrated choke prevents data telegrams from short-circuiting on the bus line. Additionally, the device features an extra 29V DC output without choke, ideal for flexible applications such as powering additional lines with a separate choke.
The power supply unit includes a built-in reset function that restores bus devices to their initial state when the reset switch is held for more than 20 seconds. At least one power supply is required for each bus line, and up to two units can be connected in parallel to double the required power. The power supply is short-circuit-proof and features voltage and current regulation for added reliability.
Technical Data
- Input voltage: AC 120-230 V, 50-60 Hz, DC 220 V
- Output voltage: DC 29V, SELV (safety extra low voltage)
- Rated current: 160 mA
- Additional output: 29V DC without choke
- Short-circuit current: Limited to 1.0 A
- Short interruption time: Approx. 200 ms at rated load
- Operator elements: Slide switch for reset (>20s)
- Indicators: Green LED for normal operation, red LED for voltage interruption (reset), red LED for overload or short circuit
- Connections:
- Screwless mains connection terminal, suitable for 0.5-3.3 mm² wires
- Bus connection (red/black), Ø 0.6-0.8 mm
- Extra low voltage output (yellow/white), Ø 0.6-0.8 mm
- Housing: Plastic, DIN-rail mounted (4 SU, 1 SU = 18 mm)
- Protection: IP20, suitable for indoor use
- Operating temperature: -5...+45 °C, Storage temperature: -25...+70 °C
- Relative humidity: 5% to 93%, non-condensing
- Standards: EN 50491-5-1, EN 61558-2-6, EN 61558-2-16
Note: If two power supply units are operated in parallel and the overload LED is lit, the bus configuration must be adjusted until the overload display disappears. No minimum cable length is required between the two units.
Available Models in this Series
- Power Supply Unit N 125/02 (160 mA) - 5WG1125-1AB02
- Power Supply Unit N 125/12 (320 mA) - 5WG1125-1AB12
- Power Supply Unit N 125/22 (640 mA) - 5WG1125-1AB22
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