Track order
Free support
Exclusive discounts
Secure payments
Couldn't load pickup availability
Not sure which device fits your project? Our team speaks KNX. Contact us for a free technical recommendation.
Got questions?
Feel free to get in touch
Ask an expert!
The Eelectron PB40A01DL2 is a DALI-2 pushbutton interface with 4 dry-contact inputs, powered from the DALI line, for connecting conventional pushbuttons to a DALI-2 application controller such as the Eelectron IC01D03DAL. It is certified to IEC 62386-301 (push buttons) and -332 (feedback), so wall switches, bedside buttons and door contacts can control DALI lighting without a KNX device in the room.
Bus load is at most 6 mA, so many interfaces fit on one line. The 34.7 x 34.7 x 12 mm module sits in the wall box behind the switch, inputs may run up to 10 m, and it operates from 0 to +50 °C.
Each input is assigned in the application controller to DALI groups, scenes or individual control gear, so a single 4-button plate can switch, dim and recall scenes for a room. The interface is powered entirely from the DALI line and requires no mains or KNX connection in the wall box, which keeps the room wiring simple in offices and hotel rooms that run a DALI-2 lighting system.
| Power supply | From DALI line, 9.5–22.4 V DC |
| Current consumption (DALI) | ≤ 6 mA |
| Inputs | 4 dry-contact; max cable 10 m (33 ft) |
| LED outputs | None |
| Standards | IEC 62386-101/103, -301, -332 (DALI-2) |
| Mounting | Flush-mount wall box |
| Dimensions | 34.7 x 34.7 x 12 mm (1.37 x 1.37 x 0.47 in) |
| Material | NY6 |
| Operating temperature | 0 °C to +50 °C (32 °F to 122 °F) |
| Certifications | DALI-2; CE |
| ETS application | None (DALI-2 device, configured by the application controller) |
| Weight (net) | 0.04 kg (0.09 lb) |
| Manufacturer part no. / GTIN | PB40A01DL2 / 8054144522593 |
Sibling: PB44A01DL2 (adds 4 LED outputs). DALI-2 application controller with input support: IC01D03DAL. DALI line repeater: LR00A01DAL. KNX-side pushbutton interfaces: IO22D02KNX / IO44D02KNX / IO62D02KNX.
CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations.
Datasheet (PDF) · Available to order.
Orders over $500 ship free within the USA (under 50 lbs). Orders under $500 carry a low cost shipping fee.
Most in-stock orders ship within 1–2 business days from Miami, FL. Delivery typically takes 3–5 business days depending on destination.
For freight or oversized orders, our team will contact you with a custom quote.
All KNXSupply products are covered by the manufacturer's warranty, ranging from 1 to 3 years depending on the brand. Warranty terms are fulfilled directly by the manufacturer.
If you experience any issue, contact us and we'll coordinate the claim process on your behalf.