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2CSM222511R1000 ABB DWA1 Digital Weekly Astronomical Time Switch 1 Channel
ABB DWA1 is a single-channel 230 V AC digital weekly astronomical time switch with Bluetooth connectivity and a 16 A change-over contact for automated control of lighting and electrical loads.
£241.11
Why Choose the ABB DWA1 Digital Time Switch?
The ABB DWA1 is a compact and versatile single-channel digital weekly astronomical time switch designed for automatic control of lighting and other electrical loads according to programmed schedules or calculated sunrise and sunset times. As part of the ABB DWA digital time switch series, it combines weekly and astronomical programming with Bluetooth connectivity for convenient configuration in commercial, residential and industrial electrical installations.
The DWA1 provides one change-over relay output and supports both conventional time-based and astronomical programming. Its standard, impulse, cycle, random and holiday programme functions provide flexible automatic switching, while automatic summer and winter time adjustment helps maintain accurate operation throughout the year.
Operating from a 230 V AC, 50/60 Hz supply, the DWA1 provides a 16 A change-over contact and accommodates up to 120 programme events. Bluetooth communication enables convenient programming using a compatible smartphone or tablet, while its compact 2-module DIN-rail format simplifies installation in electrical distribution boards and control panels.
Key Advantages
- Advanced weekly astronomical digital time switch for automated electrical load control.
- Single switching channel with change-over relay contact.
- Astronomical programming automatically calculates sunrise and sunset times according to location.
- Bluetooth connectivity enables convenient programming from compatible mobile devices.
- Supports standard, impulse, cycle, random and holiday programme functions.
- Compact 2-module DIN-rail design for straightforward installation in distribution boards and control panels.
Key Features
- ABB DWA digital time switch series.
- One independent switching channel.
- Weekly time and astronomical programming.
- 230 V AC, 50/60 Hz supply.
- 16 A change-over relay contact.
- Up to 120 programme events.
- Minimum standard switching interval of 1 minute.
- Impulse programming with 1 second resolution.
- Bluetooth interface for smartphone and tablet configuration.
- Automatic summer/winter time changeover.
- Running reserve maintains settings during power interruptions.
- Compact 2-module DIN-rail mounting format.
Intelligent Astronomical Time Control
The ABB DWA1 can automatically control electrical loads according to sunrise and sunset without requiring an external light sensor. Its astronomical programming calculates daily solar switching times using the configured date, geographical location and time zone, allowing lighting schedules to follow changing daylight hours throughout the year.
Bluetooth connectivity simplifies commissioning and subsequent programme changes by allowing settings to be created or modified using a compatible mobile device and transferred to the time switch. The combination of astronomical and conventional weekly programming makes the DWA1 suitable for installations requiring accurate, repeatable and energy-efficient automatic switching.
Typical Applications
- Street and external lighting control.
- Shop windows and illuminated advertising signs.
- Building façade and architectural lighting.
- Garden, landscape and outdoor lighting.
- Monuments and illuminated fountains.
- Commercial and public lighting installations.
- Electrical loads requiring scheduled weekly switching.
Technical Specifications
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| Mounting Type | DIN rail | |
|---|---|---|
| Device Type | Time switch | |
| Series | DWA Digital Time Switches | |
| ABB order code | 2CSM222511R1000 | |
| EAN | 8012542225119 | |
| Product type | Digital weekly astronomical time switch | |
| Number of channels | 1 | |
| Programming | Weekly / astronomical | |
| Supply voltage | 230 V AC | |
| Frequency | 50 / 60 Hz | |
| Contact type | 1 change-over (CO) | |
| Maximum load | 16 A | |
| Maximum number of programme events | 120 | |
| Minimum switching time | 1 min | |
| Impulse programme resolution | 1 s | |
| Time accuracy | ±0.5 s / 24 h | |
| Communication | Bluetooth | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Width | 2 DIN modules / 35 mm | |
| Dimensions (H × W × D) | 65 × 35 × 87 mm | |
| Weight | approx. 0.129 kg | |
| Operating temperature | -20 to +50 °C |
Frequently Asked Questions
What is the ABB DWA1 used for?
The DWA1 is used to automatically switch electrical loads according to weekly schedules or calculated sunrise and sunset times, making it particularly suitable for lighting control.
How many channels does the ABB DWA1 have?
The DWA1 has one switching channel with a change-over relay contact for controlling an electrical circuit or load.
Does the ABB DWA1 support astronomical switching?
Yes. The DWA1 supports astronomical programming, allowing switching times to follow calculated sunrise and sunset times for the configured geographical location.
Can the ABB DWA1 be programmed using a smartphone?
Yes. The DWA1 includes Bluetooth connectivity, allowing programming and settings to be transferred between the time switch and a compatible smartphone or tablet.
How is the ABB DWA1 installed?
The DWA1 is a compact 2-module DIN-rail device designed for installation in electrical distribution boards and control panels.
Trusted ABB Time Control Technology
ABB DWA digital time switches provide reliable and flexible automatic control for lighting and electrical loads, combining weekly scheduling, astronomical functionality and convenient Bluetooth configuration for modern electrical installations.
