The ABB SV/S 30.320.1.1 KNX Power Supply generates and monitors the KNX system voltage (SELV) for a single bus line at 320 mA output. It doubles the capacity of the 160 mA model and is the most common choice for medium-sized KNX lines in commercial and residential distribution boards.

An integrated choke decouples the bus line from the power supply — mandatory for correct KNX data communication. The 30 V DC output is short-circuit and overload protected. Mains input covers 85 … 265 V AC, 50/60 Hz, and a two-colour LED provides immediate status feedback.

Key Features — 320 mA Line Power

Power Output

• 320 mA at 30 V DC: SELV output for one KNX line segment.
• Integrated choke: One built-in choke — no external decoupler needed on the main line.
• Protection: Short-circuit and overload protected output.
• Status LED: Two-colour indicator for output and bus status.

Installation

• 4 MW MDRC: 72 × 90 × 64.5 mm DIN-rail module — same footprint as the 160 mA variant.
• Wide mains input: 85 … 265 V AC, 50/60 Hz.
• Power loss: 6 W typical.

At a Glance

Specification	Detail
Product type	KNX Power Supply — 320 mA, single line
Order code	SV/S 30.320.1.1 (2CDG110166R0011)
Output current	320 mA max at 30 V DC (SELV)
Integrated chokes	1 (main line)
Supplied lines	1
Mains input	85 … 265 V AC, 50/60 Hz
Power loss	6 W
Dimensions (W × H × D)	72 × 90 × 64.5 mm (4 MW)
Protection	IP20

Full electrical ratings and classification codes are listed under Technical Specifications. Technical data, product manual, installation instructions, ETS application, CAD, and EPLAN data are under Downloads.

Applications and KNX Integration

• Medium commercial lines: Power a floor or zone line with mixed sensors, binary inputs, dimming actuators, and blind drives.
• Main line backbone: Typical supply for a main line feeding multiple sub-lines through LK/S 4.2 line couplers.
• IP router auxiliary feed: Often used in the same panel to supply 12 … 30 V DC auxiliary power to an IPR/S3.5.1 KNX IP Router Secure alongside the KNX bus load.
• ETS monitoring: Import the shared .knxprod application (Downloads) for bus-side diagnostics.

Choosing SV/S 30 Power Supplies

For small lines with low device count, the SV/S 30.160.1.1 KNX Power Supply 160 mA may be sufficient. For heavily loaded main lines or a secondary unregulated output, choose the SV/S 30.640.3.1 KNX Power Supply 640 mA. Binary inputs such as the BE/S10.20.3.2 KNX Binary Input 10-fold Data Secure draw minimal bus current but must be included in the line budget.