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Mean Well LCM-25KN Power Supply 25W 350mA 500mA 600mA 700mA(default) 900mA 1050mA - KNX

Name: Mean Well LCM-25KN Power Supply 25W 350mA 500mA 600mA 700mA(default) 900mA 1050mA - KNX
Brand: Mean Well
SKU: LCM-25KN
Price: 46.25 USD
Availability: InStock

constant current model with multiple levels selectable by dip switchKNX protocolsynchronization up to 10 units

SKU LCM-25KN

$46.25 USD

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Overview

LCM-25KN is the model of this series: rated power 18.9W (350mA) / 25.2W (500mA ~ 1050mA), typical efficiency 85%.

LCM-25KN series is a 25W AC/DC constant current mode output LED driver featuring the multiple levels selectable by dip switch and the KNX interface to avoid using the complicated KNX-DALI gateway. LCM-25KN operates from 180～277VAC and offers different current levels ranging between 350mA and 1050mA. Thanks to the efficiency up to 85%, with the fanless design, the entire series is able to operate for -30℃~+85℃ case temperature under free air convection. In addition, LCM-25KN is equipped with push dimming and synchronization so as to provide the optimal design flexibility for LED lighting system.

Features

Constant current mode output with multiple levels selectable by dip switch
KNX/EIB protocol
Flicker free design
Support emergency lighting(EL)
Integrated constant light output
Integrated KNX push button interface
Synchronization up to 10units
Functions: Manual dim, operation hours, power consumption feedback, log/linear curve selection...etc
3 years warranty

Specifications

LCM-25KNSpecifications from the official datasheet (2026-02-09 edition)

OUTPUT

CURRENT LEVEL: Current level selectable via DIP switch, please refer to"DIP SWITCH TABLE" section: 350mA / 500mA / 600mA / 700mA(default) / 900mA / 1050mA
RATED POWER: 18.9W (350mA) / 25.2W (500mA ~ 1050mA)
DC VOLTAGE RANGE: 6 ~ 54V (350mA) / 6 ~ 50V (500mA) / 6 ~ 42V (600mA) / 6 ~ 36V (700mA) / 6 ~ 28V (900mA) / 6 ~ 24V (1050mA)
OPEN CIRCUIT VOLTAGE (max.): 59V (350mA ~ 600mA) / 41V (700mA ~ 1050mA)
CURRENT RIPPLE: 5.0% max. @rated current
CURRENT TOLERANCE: ±5%
SETUP TIME^Note.3: 500ms / 230VAC

INPUT

VOLTAGE RANGE^Note.2: 180 ~ 277VAC 220 ~ 380VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.94/230VAC, PF≧0.91/277VAC@ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20%( @load≧50%/230VAC; @load≧75%/277VAC ) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.)^Note.4: 85%
AC CURRENT (Typ.): 0.17A/230VAC 0.15A/277VAC
INRUSH CURRENT (Typ.): COLD START 20A(twidth=260μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 26 units (circuit breaker of type B) / 44 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.5mA / 240VAC
STANDBY POWER CONSUMPTION^Note.5: <0.5W

PROTECTION

SHORT CIRCUIT: Constant current limiting, recovers automatically after fault condition is removed
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

DIMMING: Please refer to "DIMMING OPERATION" section
SYNCHRONIZATION: Please refer to "SYNCHRONIZATION OPERATION” section

ENVIRONMENT

WORKING TEMP.: Tcase=-30 ~ +85℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
MAX. CASE TEMP.: Tcase=+85℃
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: CSA C22.2 No.250.13-12, ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384 independent, GB/T19510.1, GB/T19510.213, BIS IS15885(Part2/Sec13), EAC TP TC 004 approved
KNX STANDARDS: certification
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC ; O/P-KN±:500VDC
ISOLATION RESISTANCE: I/P-O/P:>100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION^Note.6: Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C(@load≧50%) ; BS EN/EN61000-3-3; GB/T 17743, GB17625.1, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61547, light industry level(surge immunity Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF: 1994.5K hrs min. Telcordia SR-332 (Bellcore) ; 201.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 105*68*23mm (L*W*H)
PACKING: 0.173Kg ; 72pcs/13.5Kg/1.04CUFT

Test conditions and notes8

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
3. 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.
4. Efficiency is measured at 500mA/50V output set by DIP switch.
5. Standby power consumption is measured at 230VAC.
6. 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)
7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
8. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED power supply can only be used behind a switch without permanently connected to the mains.

Technical drawings

LCM-25KN DIP SWITCH TABLE — DIP SWITCH TABLE

LCM-25KN LCM-25KN series — LCM-25KN series

LCM-25KN OUTPUT LOAD vs TEMPERATURE — OUTPUT LOAD vs TEMPERATURE

LCM-25KN TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

LCM-25KN POWER FACTOR (PF) CHARACTERISTIC — POWER FACTOR (PF) CHARACTERISTIC

LCM-25KN EFFICIENCY vs LOAD — EFFICIENCY vs LOAD

LCM-25KN MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

Typical applications

LED indoor lighting
LED office lighting
LED architectural lighting
LED panel lighting
Industrial lighting

Downloads

Certificates4

UL Certificate(LCM-25DA)(EN) PDF Download

CB Certificate(LCM-25DA)(EN) PDF Download

ENEC Certificate(LCM-25DA)(EN) PDF Download

EMC Certificate(LCM-25DA)(EN) PDF Download

Test reports1

Test Report (LCM-25DA)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Building Automation Catalog PDF Download

FAQ

Can I use the LCM-25KN for LED downlights in a KNX-controlled lighting system?

Yes, the LCM-25KN is a constant current LED driver rated at 25.2W with a 700mA default output and a 6-36V CC range. That makes it relevant for LED downlights designed for constant current operation, and this version adds KNX protocol support.

Is the LCM-25KN a fit for signage modules that need KNX control?

It can be used when the signage modules are constant current LED loads rather than constant voltage products. The driver operates at 700mA default across a 6-36V constant current range with a 25.2W rating, and it includes KNX protocol support.

Can the LCM-25KN run a small LED array in a building control project?

Yes, for a small LED array that requires constant current, the LCM-25KN fits loads within 6-36V at 700mA default. It is rated at 25.2W and also supports synchronization of up to 10 units.

How do I size LEDs for the LCM-25KN?

The LEDs must be compatible with a constant current driver and have a combined forward voltage within the DC voltage range of the selected current: 6-36V at the 700mA default, up to 6-54V at 350mA and 6-24V at 1050mA. The number of LEDs depends on each LED's forward voltage, so this is not sized the same way as a constant voltage power supply.

What operating conditions is the LCM-25KN rated for?

The listed working temperature is Tcase -30°C to +85°C (case temperature, max. +85°C), with output load derating versus temperature per the sheet's curve. Humidity is 20-90% RH non-condensing, and the input range is 180-277VAC or 220-380VDC.

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well LCM-60KN Power Supply 60.3W 500mA 600mA 700mA(default) 900mA 1050mA 1400mA - KNX	60.3W	95V	700 Milliampere	IP20	$54.76	View
Mean Well LCM-40KN Power Supply 42W 350mA 500mA 600mA 700mA(default) 900mA 1050mA - KNX	42W	65V	700 Milliampere	IP20	$51.92	View

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