Tridonic 28002877 DALI XC G3 CWM 30 DA2 – DALI-2 Certified

28002877 Common Data

28002877 Ordering data

Type DALI XC G3 CWM 30 DA2
Article number 28002877
Packaging 60 pc(s)
Carton Weight per pc 0.087 kg

28002877 Technical data

Supply via DALI-2
Supply voltage 9.5 – 22.5 V
Current draw max. 6 mA
Input 4 momentary-action switches or relays
Ambient temperature ta -40 … +70 °C
tc point 75 °C
Storage temperature ts -25 … +60 °C
Humidity 20 … 90 % not condensed
Starting time ≤ 6 s
Type of protection IP20
Mounting Mounting box 60 x 61 (ø x d)
Housing material Polycarbonate
Housing colour Light grey, similar to RAL 7035
Dimensions L x W x H 47.7 x 28.2 x 14.6 mm
Lifetime up to 50,000 h
Guarantee (conditions at www.tridonic.com) 5 Year(s

28002877 Standards

EN 61347-1
EN 55015
EN 61347-2-11
EN 61547
EN 62386-101
EN 62386-103
EN 62386-301

DALI note

Device is developed according to DALI Standard EN 62386-101 Ed.2, also known as DALI-2.

To be able to use the device in such installation, an application controller is necessary

Glow wire test

according to EN 61347-2-11 passed for temperatures up to 850°C

Installation

• The device is declared as indoor device, meaning it is intended to be used within a luminaire enclosure or in a flush-mounting box. If the product is used in a different environment, the installation must provide suitable protection for people, device and environment.

• Device must not be connected to the mains. It is supplied directly via the DALI-2 signal line.

• The momentary switches are connected directly to the device (potential free contacts) and must not be connected to the mains.

• DALI-2 signals are not SELV. Therefore the same procedures should be applied as working with mains voltage.

• Only one momentary switch each device output.

• Multiple devices can be used on the same DALI-2 network.

28002877 Wiring type and cross section

For wiring use stranded wire with ferrules or solid wire from 0.2 to 1.5 mm².
Maximum cable length between momentary switch and device is 50 cm.

Connecting wires are supplied inside the package.

Terminals

Orange = DALI D1 and D2
Grey = Push button inputs T1 – T4
Purple = Push button common

Terminal and instance description

Device supports the full push button functionality according to
IEC62386-301. The device has 4 button terminals.
These correspond to the 4 implemented DALI 301 instances:

Miscellaneous

Disposal

According to the WEEE directive return old equipment at appropriate collection facilities

DALI Input Units are interface devices (often compact,, back-box mounted modules) that bridge standard third-party components—like push-buttons, switches, and motion sensors—into a digital DALI lighting system. They convert mechanical switch closures into DALI commands (on/off, dim, scenes). Key benefits include:

Integration: Connects standard switches to intelligent DALI systems.

Power: Typically powered directly from the DALI bus.

Multi-Input: Often supports 4+ inputs per unit.

Installation: Small,, suitable for back-boxes.

Versatility: Ideal for commercial spaces requiring local control.

Functionality: They allow, for instance, a standard wall switch to send messages to the DALI system, enabling it to act as a scene selector or simple dimmer. DALI-2/Compatibility: While some are simple interfaces, modern DALI-2 Input Units are certified and part of the DALI-2 standard, enabling robust, multi-master communication.

Types:

Switch Interfaces: Commonly used for standard, momentary, or rocker switches to control lighting groups or scenes.

Sensor Inputs: Used to bring presence detectors or light sensors into the DALI network.

Power & Installation: They are typically low power (e.g., < 9 mA). Some specialized units, like the PCU Input unit, can also handle, for instance, the power supply for a small number of DALI devices.

Flexibility: They are indispensable for retrofitting standard electrical, non-DALI components into a modern digital, addressable lighting system.

Tridonic are a Zumtobel Group company, founded in 1956 in Dornbirn, Austria. For more than 60 years, they have been a driving force in the development of professional lighting solutions.

Today, Tridonic is a world-leading provider of lighting technology for professional applications, including office buildings, and retail outlets, hotels and restaurants, the education industry and outdoor lighting sectors.

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