Tridonic 87500873 DALI PS3 – DALI 2 Certified Power Supply

87500873 Common Data

87500873 Ordering data

Type DALI PS3 
Article number 87500873
Packaging 60 pc(s)
Carton Weight per pc 0.02 kg

87500873 Technical data

Rated supply voltage 220 – 240 V
Mains frequency 50 / 60 Hz
Typ. current 1 0.0172 A
Power consumption 1 1.75 W
Typ. power consumption on stand-by 2 0.31 W
Output power 1 1.2 W
Output DALI
Max. level voltage DC, DALI 18.4 V
Min. level voltage DC, DALI 13.6 V
Typ. level voltage DC, DALI 16 V
Guaranteed output current, DALI 0.07 A
Max. output current, DALI 105 mA
Ambient temperature ta -20 … +65 °C
tc point 65 °C
Type of protection IP20
Dimensions L x W x H 80.7 x 30 x 15.3 mm
Lifetime 100,000 h

87500873 Standards

EN/IEC 61347-2-11: 2001
EN 55015: 2013
EN 61000-3-2: 2014 Part 3-2
EN 61000-3-3: 2013 Part 3-3
EN 61547: 2009
EN 62386-101 Ed.2.1

Glow wire test

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

87500873 Common

Functional description

DALI PS3 is developed according to EN 62386-101 Ed.2.1 also known as DALI-2. DALI PS3 is a power supply, rated at 16 V DC and providing 70 mA.

With the provided 70 mA current up to 35 DALI loads can be connected.

Standard DALI loads are specified to consume max. 2 mA.

Some DALI control devices may consume more than 2 mA (e.g.

MSensor G3). If such devices are connected to the PS3 the amount of possible connected devices will be reduced.

This has to be considered during the application design.

Up to 2 PS3 can be connected in parallel to provide up to 140 mA.

Additional PS3 must be connected in parallel and the polarity has to be considered. Do not connect more than 2 PS3 in one installation.

This may cause damage to the device and all other devices connected to the control wires.

The housing provides mounting flaps (manually removable) which can be used for easy installation inside a luminaire.

87500873 Installation

• DALI signals are not SELV. Therefore the same procedures should be applied as working with mains voltage.
• The DALI signal wires must not drop more than 2 V.

87500873 Cable types and cable cross-sections

For wiring use stranded wire with ferrules or solid wire from 0.2–1.5 mm².

Strip 8.5–9.5 mm of insulation from the cables to ensure perfect operation of the push-wire terminals.

Use one wire for each terminal connector only.

When loosing the wiring, always use the push-button handle and never pull on the wire until the letch is released.

Output short circuit conditions

Output short circuit behavior has no delay, retry and restart period of shutdown mechanism, but short circuit proof. The PS3 keeps working even output is short with limited max. output current.

Thermal details and lifetime

The device is designed for a lifetime stated above under reference conditions and with a failure probability of less than 10 %.

Miscellaneous

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

Approval marks

Standards

EN 61347-2-11, EN 55015, EN 61000-3-2, EN 61000-3-3, EN 61547, EN 62386-101

Also stocked with Tridonic’ s controls and connectivity range

28002877
28004625
24138923

DALI-2 power supplies (typically 16V DC, 250mA max) are essential, IEC 62386-compliant devices that energize the control line for up to 64 addressable lighting fixtures and sensors. They ensure reliable communication, support modern, energy-efficient dimming, and often come in DIN-rail or compact formats for easy installation in commercial lighting.

Key Features and Technical Details

Purpose: Supplies the necessary voltage and current to the DALI bus system to enable communication between controllers and drivers.

Voltage: Standard DALI-2 systems operate with a nominal voltage of 16V DC (ranging roughly between 9V DC and 16V DC).

Current Capacity: Typically, a single DALI-2 power supply provides a maximum output current of 250mA, which is sufficient for a standard DALI line.

Device Capacity: A single, properly powered DALI-2 line can support up to 64 addressable control devices (drivers) and additional input devices (sensors, switches).

Compliance: They must adhere to IEC 62386-101 Ed 2.0, ensuring improved interoperability and safety compared to older DALI versions.

Installation: Common formats include DIN rail (for control cabinets) and compact, flush-mounted, or ceiling-recessed units.

Types of DALI-2 Power Supplies

Bus Power Supplies (PS): Specifically for powering the 2-wire DALI control bus.

DALI-2 LED Drivers/Power Supplies: These combine the power supply functionality with LED drivers, often featuring constant voltage (12V, 24V, 48V) or constant current for direct light control.

Multi-channel Units: Some supplies can manage multiple DALI channels, such as units from LOYTEC electronics that handle two or four channels.

Benefits of DALI-2

Improved Interoperability: Certified DALI-2 devices from different manufacturers work together seamlessly.

Advanced Features: Supports energy data reporting, diagnostics, and improved control capabilities.

Flicker-Free Dimming: Enables precise and smooth lighting control.

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.

In Tridonics’ extensive range of energy-efficient dimmable and non-dimmable LED drivers they offer the right products for every indoor and outdoor application – from cost-efficient LED drivers in proven Tridonic quality to premium products that give you maximum flexibility and convenience.

Tridonics’ dimmable LED drivers can be controlled with different analog and digital dimming signals. Tridonic basicDIM Wireless products allow wireless control without additional wiring.