Tridonic 28005485 LC 44W 425-1050mA o4a NF SR – DALI 2 Certified

28005485 Common Data

Ordering data LC 44/425-1050/54 o4a NF SR EXC4 28005485

Technical data

Rated supply voltage 220 – 240 V
AC voltage range 198 – 264 V
DC voltage range 176 – 280 V
Mains frequency 0 / 50 / 60 Hz
Overvoltage protection 320 V AC, 48 h
Typ. rated current (at 230 V, 50 Hz, full load) 12 210 mA
Typ. current (220 V, 0 Hz, full load, EOFx dimlevel) 2 45 mA
Max. input power 47.5 W
Output power range (P_rated) 4.3 – 43.5 W
Typ. efficiency (at 230 V, 50 Hz, full load) 2 91.5 %
λ over full operating range (max.) 0.99
λ over full operating range (min.) 0.59C

Typ. power consumption on stand-by < 0.144 W
Typ. input current in no-load operation 16.2 mA
Typ. input power in no-load operation 0.34 W
In-rush current (peak / duration) 42.4 A / 155 µs
THD (at 230 V, 50 Hz, full load) 1 < 7 %
Starting time (AC mode) < 0.7 s
Starting time (DC mode) < 0.3 s
Switchover time (AC/DC) 3 < 0.1 s
Turn off time (at 230 V, 50 Hz, full load) < 20 ms
Output current tolerance 14 ± 5 %
Max. output current peak (non-repetitive) 1,575 mA

Output LF current ripple (< 120 Hz) ± 5 %
Output P_ST_LM (at full load) ≤ 1
Output SVM (at full load) ≤ 0.4
Max. output voltage (U-OUT) 60 V
Dimming range 1 – 100 % (min. 10.5 mA)
Mains surge capability (between L – N) 1 kV
Mains surge capability (between L/N – PE) 2 kV
Type of protection IP20
Lifetime up to 100,000 h
Dimensions L x W x H 200 x 70 x 30 mm

28005485 Standards

EN 55015
EN 61000-3-2
EN 61000-3-3
EN 61000-4-4
EN 61000-4-5
EN 61347-1
EN 61347-2-13
EN 62384
EN 61547
EN 62386-101 (DALI-2)
EN 62386-102 (DALI-2)
EN 62386-207 (DALI-2, including part 105, 251, 252, 253)
According to EN 50172 for use in central battery systems
According to EN 60598-2-22 suitable for emergency lighting installations

Glow wire test

according to EN 61347-1 with increased temperature of 850 °C passed.

28005485 Installation / wiring

28005485 Wiring type and cross section

Mains supply wires

For wiring use stranded wire with ferrules or solid wire from 0.25–2.5 mm2.

Strip 8–10 mm of insulation from the cables to ensure perfect operation of the push terminals.

Use one wire for each terminal connector only.

Use each strain relief channel for one cable only

DALI supply wires

For wiring use stranded wire with ferrules or solid wire from 0.5–1.5 mm².

Strip 9–10 mm of insulation from the cables to ensure perfect operation of the push-wire terminals.

Use one wire for each terminal connector only.

Use each strain relief channel for one cable only

Secondary wires (LED module)

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.

Use each strain relief channel for one cable only.

28005485 Fixing conditions

Dry, acidfree, oilfree, fatfree. It is not allowed to exceed the maximum ambient temperature (ta) stated on the device. Minimum distances stated below are recommendations and depend on the actual luminaire.

Is not suitable for fixing in corner.

28005485 Wiring guidelines

• Run the secondary lines separately from the mains connections and lines to achieve good EMC performance.

• The max. secondary cable (LED module) length is 2 m (4 m circuit).

• For good EMC performance, keep the LED wiring as short as possible.

• To comply with the EMC regulations run the secondary wires (LED module) in parallel.

• Secondary switching is not permitted.

• The LED driver has no inverse-polarity protection on the secondary side.

Wrong polarity can damage LED modules with no inverse-polarity protection.

• Wrong wiring of the LED driver can lead to malfunction or irreparable damage.
• Through wiring of mains is for connecting additional LED driver only.
Max. permanent current of 16 A may not be exceeded.
• To avoid damage of the Driver, the wiring must be protected against short circuits to earth (sharp edged metal parts, metal cable clips, louver, etc.).
• Recommendation to check glowing in stand-by in combination with class I luminaires
• The terminal (E) is not connected to the driver.
Only for loop-through wiring of protective earth

Hot plug-in

Hot plug-in is not supported due to residual output voltage of > 0 V up to mains voltage. Danger to life.
When connecting an LED load, restart the device to activate the LED output. This can be done via mains reset or via interface (DALI, DSI, switchDIM).

Independent control gear classification

“Do not cover”, “non-IC” and “IC” classified control gear are recommended to be installed according to the Fixing conditions in 3.4.

Make sure that the LED driver is operated within the given window under all operating conditions. Special attention needs to be paid at dimming and DC emergency operation as the forward voltage of the connected LED modules varies with the dimming level, due to the implemented amplitude dimming technology.

Coming below the specified minimum output voltage of the LED driver may cause the device to shut-down. See chapter “6.9 DC operation” for more information.

28005485 Dimming

Dimming range 1 % to 100 %
Digital control with:
• DSI signal:
8 bit Manchester Code Speed 1 % to 100 % in 1.4 s
• DALI signal:
16 bit Manchester Code Speed 1 % to 100 % in 0.2 s
Programmable parameter:
Minimum dimming level Maximum dimming level Default minimum = 1 %
Dimming range 1 % to 100 % (of max. current).
Dimming curve is adapted to the eye sensitiveness.
Dimming is realized by amplitude dimming.
Physical minimal current is 1 % of max. current of the driver

28005485 Software / Programming / Interfaces

28005485 Software / programming

With appropriate software and interface different functions can be activated and various parameters can be configured in the LED driver.
The Driver supports the following software and interfaces:
Software for configuration:
• companionSUITE (deviceGENERATOR, deviceCONFIGURATOR,
deviceANALYSER, 4service NFC app)
• masterCONFIGURATOR
Interfaces for data transfer:
• NFC
• Control input DALI

28005485 Nearfield communication (NFC)

The NFC Interface allows wireless communication with the LED driver. This interface offers the option to write configuration and to read configuration, errors and events with the companionSUITE.

A correct communication between the LED driver and the NFC antenna can only be guaranteed if the antenna is placed directly on the Driver.

Any material placed between the LED driver and the NFC antenna can cause a deterioration of the communication quality.

After programming the device via NFC power up the device one time for one second till the deviceANALYSER can read out the parameters. We recommend the use of following NFC antenna: www.tridonic.com/nfc-readers

With a suitable NFC antenna several devices can be programmed at the same time (NFC multiprogramming).

NFC is complied with ISO/IEC 15963 standard.

Changing parameters via NFC shall be done by qualified engineers only

Control input DALI

The control input is non-polar for digital control signals (DALI).
The control signal is not SELV. The control cable has to be installed in accordance to the requirements of low voltage installations.
Digital control with:
• DALI signal: 16 bit
• DSI signal: 8 bit

28005485 Functions

OEM Identification

The OEM (Original Equipment Manufacturer) can set his own identification
number.

DALI Part 251: Memory bank 1 extension.

OEM GTIN

The Original Equipment Manufacturer (OEM) can set his own Global Trade
Item Number (GTIN).
DALI Part 251: Memory bank 1 extension.

Luminaire data

This function provides the asset management with accurate data about the
luminaire.
DALI Part 251: Memory bank 1 extension.
DALI Part 253: Luminaire maintenance data.

LED current

The LED output current must be adapted to the connected LED module.

The value is limited by the current range of the respective device.

The output current of the LED driver can be adjusted in a certain range.

For adjustment there are 2 options available.
Option 1: DALI
Adjustment is done by companionSUITE or by masterCONFIGURATOR.
Option 2: NFC
Adjustment is done by companionSUITE via NFC.

Device operating mode

A Tridonic Driver supports several control signals.

These control signals are automatically detected and the mode is adapted.
If only one special device mode is required, this mode can be selected.
“Automatic detection” is the default setting.

28005485 switchDIM

Integrated switchDIM function allows a direct connection of a pushbutton for dimming and switching.

Brief push (< 0.6 s) switches LED driver ON and OFF. The dimm level is saved at power-down and restored at power-up. When the pushbutton is held, LED modules are dimmed. After repush the LED modules are dimmed in the opposite direction.

In installations with LED drivers with different dimming levels or opposite dimming directions (e.g. after a system extension), all LED drivers can be synchronized to 50 % dimming level by a 10 s push.

Use of pushbutton with indicator lamp is not permitted.

28005485 corridorFUNCTION

With the corridorFUNCTION and a commercially available motion detector, it is easy to adapt the lighting in one area to its use.

That is, when the area is entered by a person, the lighting dims instantly to the desired brightness and is available in full strength.

After the area is left by the person, the brightness dims slowly to a smaller value or switches off completely.

The individual parameters of the desired profile, such as brightness values or delay times, can be adjusted flexibly and individually.

28005485 Enhanced Constant Light Output (eCLO)

With this function the light output of the LED module can be kept equal over the lifetime.

The light output of an LED module reduces over the course of its lifetime.

The Constant Light Output (eCLO) function compensates for this natural decline by constantly increasing the output current of the LED driver throughout its lifetime.

Enhanced eCLO shall be achieved by limitation of the LED current at the commissioning of the LED driver and providing a linear interpolation of the current over the time, depending on the data points given by the user.

The user has to insert up to eight pairs of data (time, level).

The output curve is the result of connecting the user data points linear.

Detailed description for eCLO see product manual.

The minimal CLO starting point is limited by the smallest output current of the LED driver.

DC operation

In emergency light systems with a central battery supply the DC recognition function uses the input voltage to detect if emergency mode is present.

The LED driver then automatically switches to DC mode and dims the light to the defined DC level.

Without DC recognition different and more complex solutions would have to be applied in order to detect emergency mode.

DC recognition is integrated in the device as standard. No additional commissioning is necessary for activation.

This is a safety-relevant parameter.

The setting is relevant for the dimensioning of the central battery system.

The LED driver is designed to operate on DC voltage and pulsed DC voltage.

For a reliable operation, make sure that also in DC emergency operation the LED driver is run within the specified conditions as stated in chapter “4.1 operating window”.

Light output level in DC operation: programmable 1 – 100 % (factory default = 15 %, EOFi = 0.13).

The voltage-dependent input current of Driver incl. LED module is depending on the used load.
The voltage-dependent no-load current of Driver (without or defect LED
module) is for:
AC: < 19 mA
DC: < 1.57 mA

In DC operation dimming mode can be activated.
If Dimming on DC is activated the requirements of the DC recognition function are ignored.

Even if DC is detected, the LED driver continues to behave as in AC mode
• The present dimming level is retained
• An emergency light level defined for the DC recognition function (DC level) is ignored
• Control signals via DALI continue to be executed

If Dimming on DC is activated then emergency mode is not recognised.

The device no longer automatically switches to the emergency light level

Enhanced power on level (ePOL)

The Enhanced Power On Level parameter defines the power level that is set automatically when power is restored after a power failure.

The Enhanced Power On Level can be set to a fixed value (0 – 100 %) or can recall the memory value.

The memory value is the last value the LED driver was set to before the power failure.

This value applies not only in DALI device operating mode, but also in the device operating mode switchDIM and DSI.

DALI default parameters

In order for all luminaires to react the same for each operation (switching, dimming, scene recall …), these values must be set the same.
These DALI standard parameters are supported by every DALI-2 device

Scenes and groups

Each device can be a member of up to 16 groups.
Also, 16 different scene values can be stored in each device.

fade2zero

When the 28005485 is switched off, fade2zero allows a smooth dimming down to almost zero.
Activate the fade2zero function when programming with companionSUITE and set a DALI fade time. The device then dims to far below the limit of its working window (dimming
range).This function is deactivated by default.

Power-up fading

The power-up function offers the opportunity to modify the on behaviour. The time for fading on can be adjusted in a range of 0.2 to 16 seconds. According to this value, the device dims from 0 % up to the power-on level. By factory default no fading time is set (= 0 seconds).

deviceKEY

This function enables a password protection for device settings to prevent unauthorized access or changes.

Dimming curve

DALI: The desired dimming behaviour is selected via two different dimming curves (logarithmic or linear).
The default setting of the dimming behaviour is logarithmic.

Lifetime indicator

This function provides the information related to driver health and aging rates. Constant monitoring allows us to make an estimation of the health status of the device. This is an indication of the condition of the driver and a guide as to when a driver should be replaced.

LED driver health:

Indicates the remaining lifetime of the driver. 100 % is a new device, 0 % should be urgently replaced. Helps the advanced user to understand what is the health status of the driver.

Aging rate:

Indicates the degree of aging based on current conditions. 0 % no aging, > 20 % driver may not survive warranty. Please check the LED driver condition. These parameters are only used to estimate the condition of the device. Warranty conditions are not affected by this.

Protective features

Intelligent temperature guard (ITG)

The Intelligent temperature guard (ITG) function provides effective protection against thermal overloads by slowly reducing the output if a defined internal temperature is exceeded.
The reduction of overtemperatures takes place in small steps every two minutes. As soon as the temperature drops again, the output power is gradually increased every 10 minutes. On DC operation this function is deactivated to fulfill emergency requirements.

Intelligent Voltage Guard (IVG)

Intelligent Voltage Guard is the name of the electronic monitoring of the mains voltage. It immediately shows if the mains voltage rises above certain thresholds. Measures can then be taken quickly to prevent damage to the 28005485 .

• If the mains voltage rises above approx. 280 Vrms (voltage depends on the 28005485 type), the LED light starts flashing on and off.
• To avoid a damage of the 28005485 the mains supply has to be switched off at this signal.

Short-circuit behaviour

In case of a short-circuit at the LED output the LED output is switched off. After restart of the 28005485 the output will be activated again. The restart can either be done via mains reset or via interface (DALI, DSI, switchDIM).

No-load operation

The 28005485 will not be damaged in no-load operation. The output will be deactivated and is therefore free of voltage. If a LED load is connected the device has to be restarted before the output will be activated again. The restart can either be done via mains reset or via interface (DALI, DSI, switchDIM).

Overload protection

If the maximum load is exceeded by a defined internal limit, the 28005485 turns off the LED output. After restart of the 28005485 the output will be activated again.

The restart can either be done via mains reset or via interface (DALI, DSI, switchDIM).

Miscellaneous

Insulation and electric strength testing of luminaires

Electronic devices can be damaged by high voltage. This has to be considered during the routine testing of the luminaires in production. According to EN 60598-1 Annex Q (informative only!) or ENEC 303-Annex A, each luminaire should be submitted to an insulation test with 500V DC for 1 second. This test voltage should be connected between the interconnected
phase and neutral terminals and the earth terminal. The insulation resistance must be at least 2MΩ.

As an alternative, EN 60598-1 Annex Q describes a test of the electrical strength with 1500V AC (or 1.414 x 1500V DC). To avoid damage to the electronic devices this test must not be conducted.

Conditions of use and storage

Humidity: 5 % up to max. 85 %, not condensed(max. 56 days/year at 85 %)
Storage temperature: -40 °C up to max. +85 °C

The devices have to be acclimatised to the specified temperature range (ta) before they can be operated.

The 28005485 is declared as inbuilt LED controlgear, meaning it is intended to be used within a luminaire enclosure.

If the product is used outside a luminaire, the installation must provide suitable protection for people and environment (e.g. in illuminated ceilings).

Maximum number of switching cycles

All LED driver are tested with 50,000 switching cycles.
The actually achieved number of switching cycles is significantly higher.

Control terminals

In some countries, basic insulated control terminals are to be marked with this symbol.

Control terminals marked “Caution” can become live in the event of a fault and are therefore not safe to touch. Circuits connected to control terminals marked in this way must be insulated according to the supply voltage of the controlgear and all terminals connected to such circuits must be protected against accidental contact.

Constant Current DALI LED drivers are advanced power supplies that regulate a fixed, consistent, and adjustable output current (e.g.350mA-700mA) for LEDs, while supporting intelligent digital dimming. They are ideal for commercial, architectural, and high-efficiency lighting applications using series-wired fixtures. These drivers enable individual or group, flicker-free dimming (down to 0.1%) using DALI-1 or DALI-2 protocols.

Key Features and Benefits

Constant Current Regulation: Ensures consistent light output and protects LEDs from current fluctuations.

DALI Compatibility: Enables bidirectional communication for control and monitoring.

Flexibility: Many models feature dip switches to select specific amperage outputs (e.g., 250mA, 350mA, 500mA, 700mA).

Dimming Performance: Supports smooth, deep dimming (0.1% to 100%).

Advanced Features: Some models support NFC configuration for setting addresses, dimming curves, and maximum levels without powering on the driver.

Safety & Efficiency: Typically Class 2 rated with high power factors (up to 0.98), making them efficient.

Common Applications

Commercial Lighting: Office and retail spaces.

Architectural Lighting: Accent and cove lighting.

Downlights and Spotlights: Ideal for high-power LED arrays.

Common Specifications

Input Voltage: Usually 100-240V or 220-240V AC.

Output Power: Ranges from low wattage up to 1000W, commonly 10W-60W.

IP Rating: Commonly IP20 for indoor use, though higher ratings are available.

Compliance: IEC 62386 (DALI).

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.