Input	Operating Voltage	198-264Vac 50Hz/60Hz
	Rated Input Voltage	220-240Vac 50Hz/60Hz
	DC Input Voltage range	200-240Vdc
	Input Current	0.29A Max.
	Input Inrush Current	<15A (Half current pulse width100μs) @230Vac
	Power factor(@230V100% load)	≥ 0.95
	Total harmonic distortion	Typical:15% (@230Vac, 100% load)
	Stand-by power	≤0.5W (@230Vac when DALI turn off)
	Efficiency(@230Vac,100% load)	88% Max.
	Wiring Method	Wire cross section:0.5-1.5mm²
	Automatic circuit breaker (Calculate current in the wire)	type	B10	B13	B16	B20	B25	/
		Number	20	25	30	40	50	/
		type	C10	C13	C16	C20	C25	C32
		Number	28	40	45	55	70	90
Output	Operating mode	Constant Current
	Load type	LED
	Ripple requirement (Flickering or Flickering-Free)	Flicker value: less than 5% for the whole dimming range
	Start-up time	<1s (@230Vac); <0.5s (@200Vdc)
	No-load output voltage	68VDC Max.
	Load output voltage range	12-58V DC
	Full load output power	50W Max.
	Load output current	500-1100mA
	Constant current/voltage Precision	Constant Current Precision ±5%
	Wiring method	Wire cross section:0.5-1.5mm²
Control Method	Output auxiliary power port	18Vdc, 100mA
	DALI Dimming	DALI dimming (Max. lead length:300m)
	DALI Power Supply	lps 55mA (60mA Max.)
	DALI Power Supply Load	15 units Max.
	Primary PUSH Dimming	Primary PUSH dimming (Max. lead wire length:20m)
	Dimming range	Primary PUSH & DALI dimming: 0%-100%
Exception Protection Requirements	Output over temperature protection	Yes, without a self-recovery function (Can be inquired)
	Output short circuit protection	Yes, with a self-recovery function (Can be inquired)
Operating Environment	Operating temperature/ humidity	-25℃~50℃ Humidity: 85% (Non-condensing)
	Storage temperature/ humidity	-40℃~80℃, Humidity: 85% (Non-condensing)
	Max. case temp(Tc)	85℃
Safety & EMC	EMC standard	EN55015 EN61547 EN61000-3-2 EN61000-3-3
	DALI protocol standard	IEC62386-101 / 102 / 207 DT6 / 220 DT19 / 250 / 251 / 252 / 253
	Safety standard	EN61347-1 EN61347-2-13
	Certification	CE, CB, ENEC, UKCA
	Withstand voltage	3750Vac, 5mA, 60s (Input "L N" - Output "SEC") 2000Vac (Input "L N" - "E") 1000Vac (Input "L" - "N”)
Others	Degrees of protection	IP20
	Type of protection	Class I
	Installation type	Built-in installation
	Dimension	2843020mm
	Blackout memory function	Yes, PUSH blackout memory
	PUSH dimming synchronization	15 units Max.
	Packaging requirement	PE bag + white box + manual + partition + outer box (K=A)
	Weight	198±5g
	Life	5 year @Ta full load
Note: All parameters are tested at the input voltage of 230VAC and 25 °C environment unless specified.

3. Dimension (Unit: mm)

4. Wiring Diagram

Fig. A DALI Dimming

Fig.B Push Dimming

5. Derating

6. Dimming curve

7. Current gear setting

KL50C-PD4iN
Current(mA)	Pomax(W)	Uout(V)
500	29.0	12～	58
550	31.9	12～	58
600	34.8	12～	58
650	37.7	12～	58
700	40.6	12～	58
750	43.5	12～	58
800	46.4	12～	58
850	49.3	12～	58
900	50.4	12～	56
950	50.4	12～	53
1000	50.0	12～	50
1050	50.4	12～	48
1100	49.5	12～	45

The typical current data sets are for reference when selecting LED fixture models. More current levels can be set by NFC using mobile APP adjustable in 1mA steps.

Scan the code to download the Merrytek NFC APP

8. ON/OFF & Description of Dimming Operation

A. Short-press the PUSH switch (short-press time 0.1s-1s), the LED driver will turn on or off.

B. Dimming: Press and hold the PUSH switch (1s-8s), the LED driver can achieve dimming, brightening, or dimming, the dimming range is 2-100%.

C. Memory: PUSH dimming has a dimming memory function.

D. Dimming synchronization: The power connected to the same PUSH switch can be synchronized by pressing and holding the PUSH switch for longer than 15 seconds.

E. DALI dimming mode: Connect the power supply to the DALI system, and it can be dimmed by the DALI host. The dimming range is 0-100%.

9. Matters needing Attention

1) The LED string must be connected to the load before turning on the input power; otherwise, the LED string may be damaged.

2) After the LED drive input is powered off, there will be a residual voltage at the output, which can be maintained for about 3 minutes.

3) Before setting the parameters by NFC, please make sure the driver is powered off.

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