Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CSM222501R1000 ABB DWA2 Digital Weekly Astronomical Time Switch 2 Channel
ABB DWA2 is a two-channel 230 V AC digital weekly astronomical time switch with Bluetooth connectivity for automated control of lighting and electrical loads.
£273.96
Why Choose the ABB DWA2 Digital Time Switch?
The ABB DWA2 is a versatile two-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 DBT digital time switch range, it combines weekly and astronomical programming with Bluetooth connectivity for convenient configuration in commercial, residential and industrial electrical installations.
The DWA2 provides two independent output channels, allowing separate loads or circuits to be controlled from a single DIN-rail device. Each channel can be assigned time-based or astronomical programming, while functions including standard, impulse, cycle, random and holiday programmes provide flexibility for a wide range of automated switching requirements.
Operating from a 230 V AC, 50/60 Hz supply, the DWA2 features two change-over relay outputs rated up to 16 A at 250 V. Bluetooth communication enables programming and settings to be transferred using a compatible smartphone or tablet, while the replaceable backup battery preserves settings during interruptions to the mains supply.
Key Advantages
- Advanced weekly astronomical digital time switch for automated electrical load control.
- Two independent channels for controlling two circuits or loads.
- 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 programming functions.
- Compact 2-module DIN-rail design for straightforward installation in distribution boards and control panels.
Key Features
- ABB DWA series digital time switch.
- Two independent switching channels.
- Weekly time and astronomical programming.
- 230 V AC, 50/60 Hz power supply.
- Two change-over relay outputs.
- Maximum switchable relay load of 16 A at 250 V.
- Bluetooth interface for smartphone and tablet configuration.
- Replaceable CR2032 lithium backup battery.
- Backlit LCD display for clear programming and status indication.
- DIN-rail mounting with a compact 2-module enclosure.
Intelligent Astronomical Time Control
The ABB DWA2 can automatically control electrical loads according to sunrise and sunset without requiring an external light sensor. Its astronomical algorithm calculates daily solar switching times using the configured date, geographical position and time zone, making it particularly useful for lighting systems that need to follow changing daylight hours throughout the year.
Two independent channels increase installation flexibility, while Bluetooth connectivity simplifies commissioning and subsequent programme changes. Programming can be created or modified on a compatible mobile device and transferred to the time switch, helping reduce configuration time when installing or maintaining automated electrical systems.
Typical Applications
- Street and external lighting control.
- Shop windows and illuminated advertising signs.
- Building façade and architectural lighting.
- Garden, landscape and outdoor lighting.
- Commercial and public lighting installations.
- Electrical loads requiring scheduled weekly switching.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | DIN rail | |
|---|---|---|
| Device Type | Time switch | |
| Series | DWA / DBT Digital Time Switches | |
| ABB order code | 2CSM222501R1000 | |
| Product type | Digital weekly astronomical time switch | |
| Number of channels | 2 | |
| Programming | Weekly / astronomical | |
| Supply voltage | 230 V AC (-15% / +10%) | |
| Frequency | 50 / 60 Hz | |
| Power consumption | 2 W (6 VA) | |
| Outputs | 2 change-over relays | |
| Maximum switchable load | 16 A / 250 V | |
| Programming step | 1 min; 1 s for impulse programme | |
| Communication | Bluetooth | |
| Backup battery | Replaceable 3 V CR2032 lithium battery | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Width | 2 DIN modules | |
| Operating temperature | -20 to +50 °C |
Frequently Asked Questions
What is the ABB DWA2 used for?
The DWA2 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 DWA2 have?
The DWA2 has two independent switching channels, allowing two electrical circuits or loads to be programmed and controlled independently.
Does the ABB DWA2 support astronomical switching?
Yes. The DWA2 can calculate sunrise and sunset times for the configured geographical location and use them to control connected loads automatically.
Can the DWA2 be programmed using a smartphone?
Yes. The DWA2 includes Bluetooth connectivity for programming and configuration using a compatible smartphone or tablet and ABB's associated timer application.
How is the ABB DWA2 installed?
The DWA2 is a compact 2-module DIN-rail device designed for installation in electrical distribution boards and control panels.
Trusted ABB Time Control Technology
ABB digital time switches provide reliable and flexible automatic control for lighting and electrical loads, combining programmable switching, astronomical functionality and convenient digital configuration for modern electrical installations.
