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Mean Well PLM-25-500, 500mA Constant Current with PFC - Terminal Block

Name: Mean Well PLM-25-500, 500mA Constant Current with PFC - Terminal Block
Brand: Mean Well
SKU: PLM-25-500
Price: 16.88 USD
Availability: InStock

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Overview

PLM-25-500 is the model of this series: rated current 0.5A, rated power 25W, typical efficiency 86%.

PLM-25 is a 25W economical AC/DC LED power supply series. Incorporating a built-in active PFC design, PLM-25 provides a high Power Factor value greater than 0.9. In addition, with the low no load power consumption below 0.5W, and the setup time less than 500ms, PLM-25 is complied with the ErP regulation required by European Union for lighting fixtures. PLM-25 is a class Ⅱ(without FG pin) power unit housed with the UL 94V-0 rated flame retardant plastic case. The I/O terminals are designed with screw-less clamp style terminal block that greatly simplifies the wiring installation.PLM-25 series, which operates from 110~295VAC.The series is constant current output design, supplying models with the current of 350mA, 500mA, 700mA and 1050mA, respectively.

Features

Full range (up to 295VAC)models
Built-in active PFC function
Constant current design
Protections:Short circuit
Cooling by free air convection
Fully isolated plastic case
Class Ⅱ power unit, no FG
Class 2 power unit(for PLM-25-500/700/1050)
No load power consumption <0.5W
High reliability,low cost
2 years warranty

Specifications

PLM-25-500Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

CONSTANT CURRENT REGION^Note.5: 30 ~ 50V
RATED CURRENT: 0.5A
NO LOAD OUTPUT VOLTAGE(max.): 56V
RATED POWER: 25W
RIPPLE & NOISE (max.)^Note.2: 5.0Vp-p
CURRENT ACCURACY^Note.3: ±5.0%
SETUP TIME: 500ms / 115VAC, 230VAC at full load;

INPUT

VOLTAGE RANGE^Note.4: 110 ~ 295VAC 156 ~ 417VDC;
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR: PF≥0.97/115VAC,PF≥0.95/230VAC,PF>0.9/277VAC(at full load)(Please refer to "Power Factor Characteristic" curve)
TOTAL HARMONIC DISTORTION: THD< 20% when output loading≧60% at 115VAC/230VAC input and output loading≧75% at 277VAC input
EFFICIENCY (Typ.): 86%
AC CURRENT: 0.3A/115VAC 0.15A/230VAC 0.12A/277VAC;
INRUSH CURRENT(Typ.): COLD START 15A(twidth=50μs measured at 50% Ipeak) at 230VAC
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 80 units (circuit breaker of type B) / 80 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: 0.25mA / 240VAC

PROTECTION

SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed.

ENVIRONMENT

WORKING TEMP.: -30 ~ +45℃
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.06%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: Ul8750, CSA C22.2 No. 250.13-12; ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384, EAC TP TC 004, IP30 approved
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms/500VDC / 25℃/ 70%RH
EMC EMISSION: Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C(≥60% load);BS EN/EN61000-3-3,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, criteria B(surge 2KV),EAC TP TC 020

OTHERS

MTBF: 7905.4K hrs min. Telcordia SR-332 (Bellcore) ; 608.9Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 145*38*22mm (L*W*H)
PACKING: 0.126Kg;60pcs/8.6 Kg/0.48CUFT

Certifications & ratings

Input Voltage: 110~295VAC

Test conditions and notes8

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Please see "AC input voltage drop vs. output current characteristics" table.
4. Derating may be needed under low input voltage, please check the static characteristic for more details.
5. Constant current operation region is within 60% ~100% rated output voltage. This is the suitable operation region for LED related applications, but please reconfirm special electrical requirements for some specific system design.
6. The power supply 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. Direct connecting to LEDs is suggested, but is not suitable for using additional drivers.
8. The models certified by CCC (GB/T19510.1, GB/T19510.213, GB/T 17743 and GB17625.1) are optional models. Please contact your MEAN WELL sales for more information.

Technical drawings

PLM-25-500 Mechanical Specification — Mechanical Specification

PLM-25-500 Derating Curve — Derating Curve

PLM-25-500 Power Factor Characteristic — Power Factor Characteristic

PLM-25-500 EFFICIENCY vs LOAD (500mA Model) — EFFICIENCY vs LOAD (500mA Model)

Typical applications

Indoor LED lighting
LED office lighting
LED commercial lighting
LED decorative lighting

Downloads

Certificates8

Mean Well PLM-12-25 CCC Certificate PDF Download

Mean Well PLM-12-25 ENEC Certificate PDF Download

Mean Well PLM-12-25 CB Certificate PDF Download

Mean Well PLM-12-25 EMC Certificate PDF Download

Mean Well PLM-12-25 UK Certificate PDF Download

Mean Well PLM-12-25 CE Certificate PDF Download

Mean Well PLM-12-25 ERP Certificate PDF Download

Mean Well IDLC Series UL Certificate PDF Download

Test reports1

Mean Well PLM-25-500 Test Report PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the PLM-25-500 for a 500mA LED downlight?

Yes, if the downlight is designed for constant current operation at 500mA and the LED load falls within the 30-50V constant-current range. It is a constant current driver, so it should not be substituted for a constant voltage LED supply.

Is the PLM-25-500 suitable for small LED arrays that need moderate forward voltage?

It is suitable for constant current LED arrays requiring 500mA where the total forward voltage stays within 30-50V. The driver is rated for 25W output.

Can this model be used with constant current signage light engines?

Yes, when the signage light engine is specified for 500mA constant current and the combined LED forward voltage is within 30-50V. It is not intended for constant voltage modules that expect a fixed DC output.

How should I size LEDs for the PLM-25-500?

Match it to a 500mA constant current LED load whose total forward voltage stays within the 30-50V CC range. The number of LEDs depends on each LED's forward voltage, so the proper check is total load voltage at 500mA rather than a fixed LED count.

What are the differences between the 25W PLM models around this output level?

For the 25W PLM group, PLM-25-1050 is 1050mA with a 14-24V CC range at 25.2W, PLM-25-700 is 700mA with a 21-36V CC range at 25.2W, PLM-25-500 is 500mA with a 30-50V CC range at 25W, and PLM-25-350 is 350mA with a 42-72V CC range at 25.2W. All four models share the same 110-295VAC input range.

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