300 W DALI-2 DT6/DT8 constant-voltage driver, 24 V
HL-DALI-DT8-CV-300W-24V-IP67 is a 300 W constant-voltage LED driver for 24 V strip. The 24 V output is 24 V DC ± 0.6 V, 12.5 A maximum, 300 W maximum, and it can be loaded anywhere from 0 W to 300 W. Two independent SELV channels share one three-core output. The housing is IP67, 301 × 50.5 × 32 mm, and the driver weighs 965 g ± 10 g.
DT6 is the dimming mode for a single-colour strip: the bus sets brightness. DT8 is the tunable-white mode: the same class of DALI-2 control sets brightness and colour temperature together. The colour-temperature range is 2700 K to 6500 K. The driver is a constant-power design, so a change of colour temperature holds the same brightness.
Control inputs
The dimming and colour-temperature input accepts one signal at a time.
| DALI-2 DT6 |
Brightness for a single-colour strip |
| DALI-2 DT8 |
Brightness and colour temperature together, 2700 K to 6500 K |
| 0–10 V |
Analogue voltage |
| 1–10 V |
Analogue voltage |
| 10 V PWM |
Pulse-width input |
| Resistance |
0–100 kΩ |
| Push DIM and Push CCT |
Retractive switch |
If more than one of those inputs is connected, the driver reads 0–10 V first, then DALI, then Push DIM/CCT. Dimming does not operate when the supply terminals are fed from DC. The output itself is flicker-free PWM at 4–16 kHz, with no strobe, and it is in the high-frequency exemption region of IEEE 1789. The dimming range is 0–100%, and the LEDs can be started at 0.1%.
This driver is not a mains phase-cut dimmer. Leading-edge and trailing-edge dimmers are not control inputs on this model.
Push DIM and Push CCT
Each function uses a retractive switch.
Push DIM. A short press turns the light on or off. A long press dims steplessly. The next long press reverses the direction. When the light is turned on, it returns to the brightness that was set last.
Push CCT. A short press steps through four preset colour temperatures. A long press changes the colour temperature steplessly, and the next long press reverses the direction. A short press on the Push DIM switch returns both brightness and colour temperature to the values that were set last.
The four preset colour temperatures are not given as separate Kelvin figures. The working range is 2700 K to 6500 K.
Output wiring
The LED lead is three-core, common anode, for a tunable-white strip. Warm and cool are the two SELV channels. Dimming runs 0–100%, and colour temperature runs 2700 K to 6500 K.
| LED+ |
Red, common positive |
| LED− warm |
Yellow |
| LED− cool |
Black |
| Lead |
0.75–2.5 mm², three-core, 250 mm |
Other leads
Every flying lead is 250 mm.
| Mains |
0.75 mm², three-core. Brown live, blue neutral, green/yellow earth. |
| DALI |
0.5 mm², three-core. DA/L purple, DA/N grey, CCT white. |
| Analogue and push |
0.5 mm², three-core. +DIM orange, −DIM grey, +CCT white. |
Connect live, neutral and earth to the supply, and use the DALI pair for a DALI line or the DIM and CCT cores for 0–10 V, 1–10 V, PWM, a potentiometer, or the retractive switches. The load and the control method belong to the installation.
Housing
Overall size 301 × 50.5 × 32 mm (length × width × height). Fixing centres 283 mm. Weight 965 g ± 10 g. The unit pack is 353 × 65 × 35 mm. A carton holds 15 drivers and measures 368 × 195 × 220 mm.
The stated use is internal lighting in Class I, Class II and Class III luminaires. The enclosure rating is IP67.
Technical specification
| Output voltage |
24 V DC ± 0.6 V |
| Output current |
12.5 A maximum |
| Output power |
300 W maximum, 0–300 W |
| Channels |
Two independent SELV constant-voltage channels, common anode |
| Ripple and noise |
≤ 240 mV |
| PWM frequency |
4–16 kHz |
| Dimming |
0–100%, start level 0.1%, no strobe |
| Colour temperature |
2700 K to 6500 K, constant power |
| Mains input |
100–264 V AC, 50/60 Hz |
| Input current |
3.2 A to 1.35 A |
| Power factor |
Greater than 0.96 at 230 V AC, full load |
| THD |
10% or below at 230 V AC, full load |
| Efficiency |
93% typical. At 230 V AC, 50 Hz the curve lies between 91% and 93% from half load to full load |
| Standby |
Below 0.5 W, ERP |
| Inrush current |
Cold start 60 A typical at 230 V AC |
| Surge |
Live to neutral, 1 kV |
| Leakage current |
0.5 mA maximum |
| Ambient temperature |
ta −25 °C to 50 °C |
| Case temperature |
tc 90 °C maximum |
| Temperature load |
Full load up to 50 °C ambient at 230 V AC, and up to 40 °C ambient at 115 V AC. Above those points the permitted load is reduced |
| Working humidity |
20–95% RH, non-condensing |
| Storage |
−40 °C to 80 °C, 10–95% RH |
| Vibration |
10–500 Hz, 2 g, 12 minutes per cycle, 72 minutes along each of X, Y and Z |
| Withstand voltage |
Input to output, 3750 V AC |
| Isolation resistance |
Input to output, 100 MΩ at 500 V DC, 25 °C, 70% RH |
| Life |
Up to 50,000 hours |
| Enclosure |
IP67. Housing 301 × 50.5 × 32 mm. Fixing centres 283 mm. Weight 965 g ± 10 g |
Protection
| Overload |
Automatic recovery. A trip current is not stated. |
| Over-temperature |
The output shuts down. It recovers when the mains is switched off and on again. |
| Over-voltage |
Operates if the unloaded output rises above 120% to 150% of the rated voltage. The output shuts down and returns by itself once the fault has cleared. |
| Short circuit |
Two levels. The first restores the output automatically after 3 seconds. The second requires the mains to be switched off and on again after the fault has cleared. |
Safety and EMC
Safety: IEC/EN 61347-1 and IEC/EN 61347-2-13, and IS 15885 (Part 2/Sec 13). Emission: EN 55015, EN 61000-3-2 Class C, IEC 61000-3-3. Immunity: EN 61000-4-2, 3, 4, 5, 6, 8, 11 and EN 61547. Strobe test: IEEE 1789. The driver is marked CE, CB, SELV and RoHS.
Installation is for a qualified electrician, to the current wiring regulations. Hi-Line supplies the driver. The circuit, the load and the choice of control input are part of the installation design. The datasheet is on the Attachments tab.
