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Mean Well XLC-40-H-KNS LED Driver 40W 9~54V Constant Power, Current Setting by Dip Switch, For KNX System, With Strain-Relief

current range 600-1400mAminimum dimming level 0.5%

SKU XLC-40-H-KNS

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Overview

XLC-40-H-KNS is the model of this series: rated power 40W, typical efficiency 88%.

XLC-40-KN Series is a 40W with constant power output LED driver . It can operate from 100~305VAC and output current ranging between 600 mA to 1400 mA selectable by ETS database. The integrate KNX interface avoids using the complicated KNX-DALI gateway. Thanks to high efficiency up to 88%, it is able to operate for -25℃ ~90℃ case temperature under free air convection. XLC-40-KN is designed based on latest safety regulations and provides more flexibility for LED Lighting application.

Features

Constant power mode output with multiple stage selectable by ETS database
Plastic housing with class II and PFC design
Flicker free, complying with CE ErP directive
Standby power consumption <0.5W
Meet emergency lighting (EL) function application
KNX/EIB protocol, support KNX data secure
Minimum dimming level 0.5%
Function:operation hours,power consumption feedback, log/linear curve selection...etc
5 years warranty

Specifications

XLC-40-H-KNSSpecifications from the official datasheet (2025-04-18 edition)

OUTPUT

OPEN CIRCUIT VOLTAGE^Note.2: 60V
DEFAULT CURRENT: 600mA
CURRENT ADJ.RANGE (BY ETS Database): 0.6~1.4A
CONSTANT CURRENT REGION^Note.3: 9~54V
RATED POWER^Note.4: 40W
CURRENT RIPPLE: <4%(@full load)
CURRENT TOLERANCE: ±5%
DIMMING RANGE: 0~100%
SETUP, RISE TIME^Note.5: 500ms, 100ms/230VAC, 1000ms, 100ms/115VAC

INPUT

VOLTAGE RANGE: 100 ~ 305VAC 141 ~ 400VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR: PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD<10%(@load≧50%/230VAC; @load≧75%/277VAC), THD<15%(@load≧50%/115VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.)^Note.6: 88%
AC CURRENT: 0.5A / 115VAC 0.25A / 230VAC 0.2A/277VAC
INRUSH CURRENT(Typ.): COLD START 10A(twidth=100μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 51 units (circuit breaker of type B) / 51 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC
STANDBY POWER CONSUMPTION^Note.7: Standby power consumption<0.5W(Dimming off)

PROTECTION

SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed
OVER TEMPERATURE: Stage 1: De-rating to 75% loading; Stage 2: De-rating to 50% loading. Recovers automatically after fault condition is removed.

ENVIRONMENT

WORKING TEMP.: Tcase=-25 ~ 90℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
MAX. CASE TEMP.: Tcase=90℃
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: ENEC BS EN/EN61347-1, BS EN/EN61347-2-13(EL) appendix J suitable for emergency installations(DC input 176-280VDC), BS EN/EN62384; GB/T19510.1, GB/T19510.213; EAC TP TC 004 approved; Design refer to AS/NZS 61347-1, AS/NZS 61347-2-13
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC
ISOLATION RESISTANCE: I/P-O/P:>100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55015(CISPR15) ,GB/T 17743
Radiated BS EN/EN55015(CISPR15) ,GB/T 17743
Harmonic Current BS EN/EN61000-3-2 , GB17625.1 Class C @load≥50%
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN61547

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/EN61000-4-3 Level 2
EFT/Burst BS EN/EN61000-4-4 Level 2
Surge BS EN/EN61000-4-5 Level 3, 1KV/Line-Line
Conducted BS EN/EN61000-4-6 Level 2
Magnetic Field BS EN/EN61000-4-8 Level 2
Voltage Dips and Interruptions BS EN/EN61000-4-11 70% residual voltage for 10 period, 0% residual voltage for 0.5 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55015(CISPR15) ,GB/T 17743
Radiated	BS EN/EN55015(CISPR15) ,GB/T 17743
Harmonic Current	BS EN/EN61000-3-2 , GB17625.1	Class C @load≥50%
Voltage Flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/EN61000-4-3	Level 2
EFT/Burst	BS EN/EN61000-4-4	Level 2
Surge	BS EN/EN61000-4-5	Level 3, 1KV/Line-Line
Conducted	BS EN/EN61000-4-6	Level 2
Magnetic Field	BS EN/EN61000-4-8	Level 2
Voltage Dips and Interruptions	BS EN/EN61000-4-11	70% residual voltage for 10 period, 0% residual voltage for 0.5 periods

OTHERS

KNX: Certified protocol
FLICKER^Note.8: PstLM ≤ 1, SVM ≤ 0.4
MTBF: 3935.2 K hrs min. Telcordia SR-332 (Bellcore) ; 342.9 Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 147*40*32mm,107*40*32mm (L*W*H)
PACKING: 193g; 60pcs/12.6Kg/0.58CUFT(for blank type); 205g; 50pcs/11Kg/0.57CUFT(for S-type)

Test conditions and notes13

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Output hiccups under no-load condition.
3. Please refer to “DRIVER METHODS OF LED MODULE”.
4. De-rating may be need under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
5. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
6. Efficiency is measured at 800mA/50V output set by ETS database.
7. Standby power consumption is measured at 230VAC.
8. Flicker is measured at full load with the light source provided by MEAN WELL.
9. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
10. For XLC-S series: RCM is on a voluntary basis. Non IC classification Independent LED control gear is not suitable for residential installations. For XLC(except -S) series: RCM is on a voluntary basis and meets relevant IEC or AS/NZS standards complying with AS/NZS 4417.1
11. The ambient temperature de-rating of 3.5℃/1000m with fanless models and 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
12. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
13. For more information, please contact with MEAN WELL sales.

Technical drawings

XLC-40-H-KNS BLOCK DIAGRAM — BLOCK DIAGRAM

XLC-40-H-KNS DRIVING METHODS OF LED MODULE — DRIVING METHODS OF LED MODULE

XLC-40-H-KNS XLC-40-KN series — XLC-40-KN series

XLC-40-H-KNS Powerinputrelativetolumenoutput — Powerinputrelativetolumenoutput

XLC-40-H-KNS ※PUSH dimming or AC/DC input monitor(Primary side) — ※PUSH dimming or AC/DC input monitor(Primary side)

XLC-40-H-KNS OUTPUT LOAD vs TEMPERATURE — OUTPUT LOAD vs TEMPERATURE

XLC-40-H-KNS TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

XLC-40-H-KNS POWER FACTOR (PF) CHARACTERISTIC — POWER FACTOR (PF) CHARACTERISTIC

XLC-40-H-KNS EFFICIENCY vs LOAD — EFFICIENCY vs LOAD

XLC-40-H-KNS MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

Typical applications

Downloads

Datasheet1

XLC-40-H-KNS datasheetXLC_40_KN_Spec_Sheet.pdf · 2025-04-18 edition PDF Download

FAQ

Can the XLC-40-H-KNS drive LED downlights integrated into a KNX building control system?

Yes, the XLC-40-H-KNS is designed for KNX system integration and accepts dimming commands from a KNX bus controller. With 40W constant current output and a 600mA default current, it can power LED downlights in addressable KNX zones, dimming smoothly down to a minimum level of 0.5%.

Is the XLC-40-H-KNS appropriate for powering small LED arrays in KNX-controlled retail display lighting?

The XLC-40-H-KNS can support small LED arrays where the total load is within 40W and the LED forward voltages sum to between 9V and 54V. In KNX retail environments, it enables scene-based brightness control directly from the KNX panel without additional dimming hardware.

What is the purpose of the strain-relief fitting on the XLC-40-H-KNS?

The strain-relief fitting on the XLC-40-H-KNS mechanically secures the output cable at the driver housing, preventing connector stress from cable tension, vibration, or movement during and after installation. This is particularly useful in installations where cables are routed through conduit or the driver is mounted in a position where output cables may experience mechanical load. The XLC-40-H-KN is the same driver without this fitting.

Can the XLC-40-H-KNS be mounted inside a luminaire housing or ceiling recess?

Yes, the XLC-40-H-KNS is rated for built-in installation inside a luminaire or enclosure. Its operating temperature range of -25°C to +90°C is appropriate for the elevated ambient conditions common inside enclosed ceiling fittings. It is not rated for direct exposure to moisture or outdoor environments without a separate enclosure.

What LED load voltage range is the XLC-40-H-KNS compatible with?

The XLC-40-H-KNS operates as a constant current driver with a CC output voltage range of 9–54V. It is compatible with LED arrays whose forward voltages sum within this range at the selected drive current. The number of LEDs that can be driven depends on the forward voltage of each LED, so verify Vf for your specific LED load.

Can I adjust the drive current on the XLC-40-H-KNS, and what range is available?

Yes, the XLC-40-H-KNS allows output current adjustment from 600mA to 1400mA via the ETS database. Current is set digitally during commissioning. This range provides flexibility to match different LED loads without replacing the driver.

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Model	Power	Voltage	Current	IP Rating
Mean Well XLC-40-H-SN LED Driver 40W 1050mA 9~54V Constant Power with Strain-relief, NFC Current Setting	40W	60V	1050 Milliampere	IP20	View
Mean Well XLC-40-H-KN LED Driver 40W 9~54V Constant Power, Current Setting by Dip Switch, For KNX System	40W	60V	600 Milliampere	IP20	View
Mean Well XLC-40-H-MAS LED Driver 40W 1050mA 9~54V Constant Power, Current Setting by Dip Switch, Matter Wireless Dimming with Strain Relief	40W	60V	1050 Milliampere	IP20	View
Mean Well XLC-40-H-MA LED Driver 40W 1050mA 9~54V Constant Power, Current Setting by Dip Switch, Matter Wireless Dimming	40W	60V	1050 Milliampere	IP20	View

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