The HDL M/P960.1 KNX 960 mA Power Supply is a DIN-rail module that generates the KNX bus voltage from mains input. It delivers up to 960 mA on the KNX/EIB line at 30 V DC output, with integrated choke, and is intended solely for powering KNX devices — not general-purpose DC loads.

Protection includes overload, over-current, and output short-circuit shutdown. A front-panel RESET button (hold 2 seconds) recovers the supply after a fault. Green LED indicates normal output; red LED signals overload (I > I_max).

Key Features — High-Capacity KNX Bus Power

Power and Protection

• 960 mA output: Maximum bus current for large lines of sensors, actuators, and panels.
• Mains input: AC 100–240 V, 50/60 Hz — suitable for global projects.
• 30 V DC bus output: KNX-compliant SELV bus voltage with integrated choke.
• Power loss: < 20 %; power-on time < 2 s.
• Protection: Overload, over-current, and short-circuit on KNX output.

Front Panel

• RESET button: Press and hold 2 s to reset after fault.
• Status LEDs: Green = normal; Red = overload.
• KNX terminals: Red (+) / black (−) bus connection; cable Ø 0.6–0.8 mm.

At a Glance

Specification	Detail
Product type	KNX bus power supply — 960 mA
Model	HDL-M/P960.1
Input	AC 100–240 V, 50/60 Hz
Output	30 V DC — 960 mA max
Dimensions (W × H × D)	144 × 90 × 64 mm
Weight	390 g
Mounting	35 mm DIN rail
Protection	IP 20 (EN 60529)

Wiring diagram, DIN-rail installation steps, and CE/KNX approvals are under Technical Specifications. Datasheet is under Downloads.

Applications and KNX Integration

• Main distribution lines: Power mixed loads — switch actuators, dimming actuators, DALI gateway, sensors, and IP routers.
• Touch panel projects: Budget bus current for multiple Granite panels plus auxiliary feeds via M/PCI2PE.1 interfaces.
• DMX and gateways: Supply KNX side of M/DMX512.1 while using a separate 24 V supply for the DMX port.
• EAE comparison: For 640 mA KNX PSU with similar DIN-rail form, see the EAE PS640 Power Supply.
• ABB comparison: For modular ABB i-bus® supplies (160–640 mA), see the SV/S 30.640.3.1 family.

Choosing KNX Power Supplies

The M/P960.1 is HDL's highest-capacity single-output KNX PSU at 960 mA — use when calculated bus load (devices + panel auxiliary feeds + router consumption) approaches smaller supply limits. Split lines with M/IPRT.1 couplers when more than one 960 mA segment is required.