Description
Introduction
The theben PS 160 mA T KNX (SKU: 9070956) is a compact, highly reliable power supply unit designed to provide auxiliary system voltage and nominal bus power for KNX installations. Operating from a standard 230 V AC to 240 V AC line input at 50 to 60 Hz, this unit delivers a stable 30 V DC SELV voltage with a nominal output current of 160 mA, making it ideal for powering dedicated KNX line segments and bus devices. This device is part of our professional KNX System Components range.

Designed for convenient mounting on standard 35 mm DIN rails, the device occupies a width of 4 module units. It incorporates an integrated choke to prevent bus signal attenuation and power disturbance, alongside a minimum mains failure bridging time of 130 ms. With a standby consumption of ≤0.8 W and IP 20 environmental protection, it offers an energy-efficient foundation for building control panels.
Key Features
- Mains input voltage range of 230 V AC to 240 V AC at 50 Hz to 60 Hz.
- KNX bus voltage output rated at 30 V DC (± 2 V, SELV).
- Nominal KNX bus output current of 160 mA.
- 4-module width footprint for standard DIN rail installation.
- Integrated choke for 1 KNX bus line.
- Standard KNX bus terminal connection type.
- IP 20 rated protection enclosure for indoor panel installation.
- Wide operational temperature range from -5°C to 45°C.
Benefits
- Delivers continuous nominal 30 V DC SELV power with a 160 mA current capacity for reliable KNX bus operation.
- Features an integrated throttle drive to ensure clean communication signals across the KNX line.
- Provides enhanced grid failure tolerance with a minimum mains failure bridging time of 130 ms.
- Optimizes energy efficiency in distribution boards with a low standby power consumption of ≤0.8 W.
- Includes robust protection mechanisms, capping uninterrupted short-circuit current at a maximum of 0.5 A.
- Ensures safety and compliance under EN 60 730-1 Class II protection standard.
Technical Specifications
Applications
- Supplying reliable bus power to smaller KNX line segments or dedicated system lines in commercial and residential buildings.
- Integration into primary and secondary electrical distribution enclosures requiring DIN rail mounted SELV power components.
Installation Notes
- Mount the unit on a standard DIN rail within a dry, IP 20 compliant electrical enclosure, ensuring an ambient temperature between -5°C and 45°C.
- Connect the mains supply (230 V AC – 240 V AC) and use standard KNX bus terminals to wire the bus line directly to the integrated choke output.
Developer Resources
- KNX ETS database files (ZIP format for single product and full product library).
- Technical datasheet, CE declaration of conformity, and EU Data Act information notice in PDF format.
FAQ
What is the nominal output current provided by the theben PS 160 mA T KNX?
The unit delivers a nominal output current of 160 mA at 30 V DC (± 2 V, SELV) for KNX line powering. Explore more theben KNX solutions for professional building automation projects.
Does this power supply feature an integrated KNX choke?
Yes, it includes 1 output line with an integrated throttle drive (choke) to decouple communication signals from the supply voltage. For certificates and current technical files, refer to the official theben documentation.
How long can the power supply bridge brief mains interruptions?
The power supply features a mains failure bridging time of at least 130 ms to maintain system stability during temporary voltage drops.
What is the width and mounting style of the device?
The device is designed for DIN rail mounting and has a width of 4 module units.
What is the exact product model?
The order/model code for this page is 9070956. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by theben.
Conclusion
The theben PS 160 mA T KNX (9070956) is a compact and dependable 160 mA power supply unit equipped with an integrated choke, low standby consumption, and robust short-circuit protection. Installers and system integrators can review our professional project support options.
It provides building automation integrators with a reliable SELV power solution for maintaining stable KNX system infrastructure.







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