04
SW4L.20.1
Choose this model for four independently switched circuits when a compact 4SU format and a confirmed 20A resistive-load rating per channel are required.
SW SERIES
SW Series 16A & 20A
KNX Switch Actuators
The SW Series includes 20A KNX switch actuator models for 4-, 8- and 12-channel applications, together with a 24-channel 16A model. Designed for professional KNX projects, each DIN-rail actuator provides independent relay outputs, manual control and ETS 5 / ETS 6 configuration.
Series Overview
High-Current Switching for Professional KNX Projects
The SW Series provides independently controlled KNX relay outputs for projects requiring higher resistive-load ratings and a wider choice of channel configurations, from 4 to 24 channels.
Built for Higher Current & More Channels
The SW Series is designed for KNX projects that require higher-current relay switching and more flexible channel selection. Three models provide a confirmed 20A resistive-load rating per channel, while the 24-channel model provides a confirmed 16A resistive-load rating per channel.
- 4-, 8- and 12-channel models with a 20A resistive-load rating per channel
- 24-channel model with a 16A resistive-load rating per channel
- Independent relay outputs controlled through the KNX TP bus
- Manual control across the series, including push-button operation and LED indication on SW24L.16.1
- ETS 5 and ETS 6 configuration with scenes, delay, staircase-lighting, logic and feedback functions
- Operating temperature range from −25°C to +85°C
Need a 10A KNX switching solution?The
SD Series
provides dedicated 4- and 8-channel 10A switch actuator
options for projects with lower per-channel resistive-load
requirements.
4 / 8 / 12 / 24
Output Channels
16A / 20A
Resistive Load per Channel
KNX TP
ETS 5 / ETS 6 Configuration
4SU / 9SU / 13SU
DIN Rail Module Width
Product Models
Choose the Right SW Series Model for Your Project
Compare four KNX switch actuator configurations according to output-channel quantity, confirmed resistive-load rating per channel, DIN rail width, manual operation and certification status.
SW Series
4 Channels
SW4L.20.1
4-Channel 20A KNX Switch Actuator
Output Channels
4
Resistive Load
20A per Channel
DIN Rail Width
4SU
Dimensions
75 × 90 × 64.5 mm
Manual Control
Lever-Style
Certification
KNX Certified · CE
KNX TP
ETS 5 / ETS 6
5 Scenes per Channel
Compact four-channel model for projects requiring confirmed
20A resistive-load switching per channel in a 4SU DIN rail
format.
SW Series
8 Channels
SW8L.20.1
8-Channel 20A KNX Switch Actuator
Output Channels
8
Resistive Load
20A per Channel
DIN Rail Width
9SU
Dimensions
148 × 90 × 64.5 mm
Manual Control
Lever-Style
Certification
KNX Certified · CE
KNX TP
ETS 5 / ETS 6
5 Scenes per Channel
Eight-channel 20A model combining higher output capacity
with individual KNX relay control in a 9SU DIN rail format.
SW Series
12 Channels
SW12L.20.1
12-Channel 20A KNX Switch Actuator
Output Channels
12
Resistive Load
20A per Channel
DIN Rail Width
13SU
Dimensions
221 × 90 × 64.5 mm
Manual Control
Lever-Style
Certification
CE
KNX TP
ETS 5 / ETS 6
5 Scenes per Channel
Twelve-channel model for projects requiring a greater number
of independently controlled 20A resistive-load outputs.
SW Series
24 Channels
SW24L.16.1
24-Channel 16A KNX Switch Actuator
Output Channels
24
Resistive Load
16A per Channel
DIN Rail Width
13SU
Dimensions
221 × 90 × 64.5 mm
Manual Control
Push Button
Certification
CE
KNX TP
LED Indication
ETS 5 / ETS 6
High-channel-count model with 24 independently controlled
16A resistive-load outputs, push-button manual control and
LED indication.
Need help comparing channel quantity, resistive-load rating,
DIN width and manual control?
Compare All Four Models
Model Comparison
Compare SW4L.20.1, SW8L.20.1, SW12L.20.1 and SW24L.16.1
Compare confirmed channel quantities, resistive-load ratings, DIN rail dimensions, manual-control methods, environmental parameters and certification status across all four SW Series KNX switch actuators.
Swipe horizontally to compare all models
| Technical Specification |
SW4L.20.1
4 Channels · 20A
|
SW8L.20.1
8 Channels · 20A
|
SW12L.20.1
12 Channels · 20A
|
SW24L.16.1
24 Channels · 16A
|
|---|---|---|---|---|
| Model Configuration | ||||
| Output Channels | 4 | 8 | 12 | 24 |
| Output Type | Independent Relay Outputs | Independent Relay Outputs | Independent Relay Outputs | Independent Relay Outputs |
| Resistive Load Rating per Channel | 20A | 20A | 20A | 16A |
| Manual Control | Lever-Style | Lever-Style | Lever-Style | Push Button |
| Status Indication | — | — | — | LED Indication |
| Certification | KNX Certified · CE | KNX Certified · CE | CE | CE |
| KNX & Electrical | ||||
| Communication Protocol | KNX TP | KNX TP | KNX TP | KNX TP |
| KNX Bus Voltage | 21–30V DC | 21–30V DC | 21–30V DC | 21–30V DC |
| KNX Bus Current | <12mA | <12mA | <12mA | <12mA |
| KNX Bus Power Consumption | <360mW | <360mW | <360mW | <360mW |
| Output Circuit Voltage | 230V AC, 50Hz | 230V AC, 50Hz | 230V AC, 50Hz | 230V AC, 50Hz |
| ETS Versions | ETS 5 / ETS 6 | ETS 5 / ETS 6 | ETS 5 / ETS 6 | ETS 5 / ETS 6 |
| Installation & Environment | ||||
| Installation | Standard 35mm DIN Rail | Standard 35mm DIN Rail | Standard 35mm DIN Rail | Standard 35mm DIN Rail |
| DIN Rail Module Width | 4SU | 9SU | 13SU | 13SU |
| Dimensions | 75 × 90 × 64.5 mm | 148 × 90 × 64.5 mm | 221 × 90 × 64.5 mm | 221 × 90 × 64.5 mm |
| Connection Terminals | Screw Terminals | Screw Terminals | Screw Terminals | Screw Terminals |
| Solid Conductor | 0.5–4.0mm² | 0.5–4.0mm² | 0.5–4.0mm² | 0.5–4.0mm² |
| Stranded Conductor | 0.5–2.5mm² | 0.5–2.5mm² | 0.5–2.5mm² | 0.5–2.5mm² |
| Operating Temperature | −25°C to +85°C | −25°C to +85°C | −25°C to +85°C | −25°C to +85°C |
| Storage Temperature | −20°C to +60°C | −20°C to +60°C | −20°C to +60°C | −20°C to +60°C |
| Working Humidity | 10–95% RH, non-condensing | 10–95% RH, non-condensing | 10–95% RH, non-condensing | 10–95% RH, non-condensing |
08
SW8L.20.1
Choose this model for eight independently controlled 20A resistive-load outputs in a 9SU DIN rail format with KNX and CE certification.
12
SW12L.20.1
Choose this model when twelve independently controlled outputs with a confirmed 20A resistive-load rating per channel are required in a 13SU housing.
24
SW24L.16.1
Choose this model for 24 independently controlled 16A resistive-load outputs with push-button manual control, LED indication and a 13SU DIN rail width.
Data display rule:
“—” means that the model does not include that configuration.
Switching Capability
Reliable Relay Switching from KNX Command to Load Circuit
Each SW Series actuator receives switching commands through the KNX TP bus and controls independent relay outputs for confirmed 230V AC resistive-load circuits.
Control Input
KNX TP Bus Command
KNX devices or automation logic send switching telegrams through the KNX TP bus to the selected SW Series actuator.
Switching Device
SW Series KNX Switch Actuator
Each output channel operates an independent relay, allowing the configured KNX function to switch its connected circuit without combining channel ratings.
Controlled Output
230V AC Resistive-Load Circuit
The relay output switches the connected resistive-load circuit according to the confirmed per-channel rating of the selected SW Series model.
20A
Per Channel · SW4L / SW8L / SW12L
16A
Per Channel · SW24L.16.1
4 / 8 / 12 / 24
Independent Relay Outputs
230V AC
Output Circuit · 50Hz
Confirmed load data:
The published 20A-per-channel rating applies to resistive loads. For LED drivers, capacitive loads, inductive loads or motor circuits, verify the actual inrush current and load compatibility before final project selection.
Project Applications
Where the SW Series Fits in KNX Projects
Install SW Series actuators in the KNX distribution board to provide independently controlled relay outputs for residential, hotel and commercial automation projects.
KNX Distribution Board
Position the SW Series between the KNX control bus and the independently switched circuits
KNX wall controls, sensors or automation logic send commands through the KNX TP bus. The selected SW Series actuator then operates its independent relay outputs according to the configured ETS functions.
User & Logic Input
KNX Controls, Sensors & Automation Logic
DIN Rail Actuator
SW Series KNX Switch Actuator
Controlled Outputs
Independent 230V AC Resistive-Load Circuits
KNX TP
Control Bus
4–24
Independent Outputs
16A / 20A
Resistive Load per Channel
Residential
Apartment Multi-Circuit Switching
Organize independently controlled circuits in the apartment distribution board and select the required output quantity according to the project circuit schedule.
Hospitality
Hotel Guestroom & Common-Area Circuits
Use KNX commands, scenes and delay functions to coordinate independently switched circuits across guestrooms, corridors and selected shared areas.
Commercial
Commercial Multi-Circuit Zones
Select 8-, 12- or 24-channel models for projects requiring a larger number of independent switching outputs within the KNX electrical distribution system.
System Integration
KNX Distribution Board Integration
Coordinate the actuator with the KNX power supply, wall controls, sensors and gateways while reserving the correct DIN rail width for the selected model.
Project selection:
choose the SW Series model according to the required
channel quantity, confirmed resistive-load rating per
channel, DIN rail width, manual-control method and
certification status.
Complete the KNX system with
KNX power supplies
,
KNX wall controls
and
gateways and visualization devices
.
KNX Functions & ETS Configuration
Flexible Channel Functions Configured through ETS
Configure independent relay outputs, central commands, timing, scenes, logic, feedback and recovery behavior through ETS 5 or ETS 6 according to the requirements of the KNX project.
ETS Configuration
Configure Each SW Series Output for the Required KNX Control Logic
The SW Series supports project configuration through ETS 5 and ETS 6. Select the correct product entry for the actuator model, configure the required channel parameters and commission the device within the KNX installation.
ETS 5
ETS 6
KNX TP
01
Select the Verified Product Database
Use the database entry confirmed for the selected
SW Series model and ETS version.
02
Configure Channel Functions
Assign switching, scene, timing, logic, feedback
and restoration parameters to the required outputs.
03
Download and Test the Configuration
Commission the actuator and verify each configured
relay output within the completed KNX installation.
ETS database status:
configure the selected SW Series model in ETS 5 or ETS 6
and assign switching, timing, scene, logic, feedback and
recovery parameters according to the project design.
SW Series Functions
Functions Available for Professional KNX Switching
The following functions are recorded for the SW Series. The exact parameter names and object arrangement may depend on the verified ETS database version.
Switching & Central Control
- Independent on/off control for each relay output
- Central on/off command support
- Two preset values per channel
- Force-operation support
Timing & Sequence Functions
- Delay switching
- Staircase-lighting function
- Flashing function
- Configurable restoration behavior
Scenes, Logic & Thresholds
- Five scenes per channel
- AND logic
- OR logic
- XOR logic
- Threshold-based switching behavior
Feedback & Recovery
- Channel status feedback
- Relay-output status feedback
- Safety-function support
- Configurable status after KNX bus restoration
- Configurable status after power restoration
Function boundary:
combine independent channel control, scenes, timing,
logic and status feedback to create flexible KNX
switching strategies for residential, hotel and
commercial automation projects.
Dimensions, Wiring & Installation
Plan DIN Rail Space for Every SW Series Model
Compare confirmed housing dimensions and DIN rail widths, then complete mounting, wiring and ETS commissioning according to the selected model and project documentation.
Model Dimensions
Compare Housing Width and DIN Rail Space
All four models use the same 90mm housing height and 64.5mm depth. Select the required panel space according to the confirmed width and DIN rail module size.
SW4L.20.1
4 Channels
75 mm
75 × 90 × 64.5 mm
Product Dimensions
4SU
DIN Rail Width
SW8L.20.1
8 Channels
148 mm
148 × 90 × 64.5 mm
Product Dimensions
9SU
DIN Rail Width
SW12L.20.1
12 Channels
221 mm
221 × 90 × 64.5 mm
Product Dimensions
13SU
DIN Rail Width
SW24L.16.1
24 Channels
221 mm
221 × 90 × 64.5 mm
Product Dimensions
13SU
DIN Rail Width
Connection format: standard 35mm DIN rail installation with screw terminals. Supported conductor sizes are 0.5–4.0mm² for solid conductors and 0.5–2.5mm² for stranded conductors. Follow the model-specific wiring diagram when completing KNX bus and output-circuit connections.
Installation Sequence
From Panel Planning to KNX Commissioning
Reserve the required DIN rail space, complete the electrical connections and commission the actuator according to the selected SW Series model.
01
Reserve the Correct DIN Rail Width
Allocate 4SU, 9SU or 13SU in the distribution board according to the selected actuator model.
02
Mount on the 35mm DIN Rail
Secure the actuator in the planned panel position while maintaining suitable space for wiring, identification and servicing.
03
Complete KNX and Output Wiring
Connect the KNX TP bus and independently controlled output circuits according to the model-specific wiring diagram and terminal identification.
04
Configure and Verify through ETS
Download the ETS configuration, verify manual control and test the configured switching, scene, timing, logic and feedback functions.
35mm
Standard DIN Rail
Screw Terminals
Connection Method
−25°C to +85°C
Operating Temperature
10–95% RH
Non-Condensing Humidity
Professional installation:
installation, wiring, inspection and commissioning
should be completed by qualified electrical personnel
in accordance with the project documentation and
applicable local requirements.
Downloads & Technical Support
Technical Resources for SW Series Projects
Request product data, installation and dimension information, wiring references and ETS resources for the selected SW Series KNX switch actuator.
PDF
Product Datasheet
Review model specifications, channel quantities, resistive-load ratings, dimensions, installation data and environmental parameters.
SW4L · SW8L · SW12L · SW24L
Download Datasheet
PDF
Installation Manual & Dimension Drawings
Review DIN rail mounting, terminal identification, wiring guidance, commissioning procedures and model-specific housing dimensions.
Installation guidance · 4SU · 9SU · 13SU
Download Manual
PDF
KNX Wiring Diagram
Check KNX TP bus connections, relay-output terminal arrangement and model-specific circuit wiring references.
KNX bus and output-circuit reference
Download Wiring Diagram
KNX / ETS
ETS Product Database
Configure switching, timing, scenes, logic, feedback and restoration behavior for the selected SW Series actuator through ETS 5 or ETS 6.
ETS 5 · ETS 6 · KNX TP configuration
Download ETS Database
Frequently Asked Questions
SW Series Technical Questions
Quick answers about model selection, current ratings, certification, manual control, ETS configuration and installation.
What is the difference between the 20A and 16A SW Series models?
SW4L.20.1, SW8L.20.1 and SW12L.20.1 provide a confirmed 20A resistive-load rating per channel. SW24L.16.1 provides 24 independent outputs with a confirmed 16A resistive-load rating per channel.
Does the current rating represent the total actuator current?
No. The displayed 16A or 20A value is the confirmed resistive-load rating for each individual output channel. A total actuator current is not calculated by multiplying the channel quantity by the per-channel rating.
Which SW Series models are KNX certified?
SW4L.20.1 and SW8L.20.1 are listed with KNX certification and CE. SW12L.20.1 and SW24L.16.1 are listed with CE.
Do all SW Series models support manual control?
Yes. SW4L.20.1, SW8L.20.1 and SW12L.20.1 use lever-style manual control. SW24L.16.1 uses push-button manual control and includes LED indication.
Which ETS versions can be used with the SW Series?
The SW Series supports configuration through ETS 5 and ETS 6. Select the product database entry corresponding to the actuator model used in the project.
How much DIN rail space is required?
SW4L.20.1 requires 4SU, SW8L.20.1 requires 9SU, and both SW12L.20.1 and SW24L.16.1 require 13SU. All models are designed for standard 35mm DIN rail installation.
What channel functions can be configured through ETS?
Functions include independent switching, central commands, two preset values per channel, five scenes per channel, delay, staircase lighting, flashing, threshold, force, safety, status feedback, AND/OR/XOR logic and restoration behavior.
Who should install and commission the actuator?
Installation, electrical wiring, inspection and KNX commissioning should be completed by qualified personnel in accordance with the project documentation and applicable local requirements.
SW Series Project Support
Ready to Select the Right SW Series KNX Switch Actuator?
Share your required channel quantity, resistive-load information, DIN rail arrangement and project requirements with DERVIRGA for SW4L.20.1, SW8L.20.1, SW12L.20.1 or SW24L.16.1 model selection, quotation and technical support.