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Mean Well PLN-45-12 Power Supply 45W 12V - IP64 3.8A

Name: Mean Well PLN-45-12 Power Supply 45W 12V - IP64 3.8A
Brand: Mean Well
SKU: PLN-45-12
Price: 41.06 USD
Availability: InStock

fully isolated plastic caseIP64suitable for signage applications

SKU PLN-45-12

$41.06 USD

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In stock

Overview

PLN-45-12 is the 12V output model of this series: rated current 3.8A, rated power 45.6W, typical efficiency 84.5%.

Features

Universal AC input / Full range (up to 295VAC)
Protections: Short circuit / Over current / Over voltage / Over temperature
Cooling by free air convection
Built-in constant current limiting circuit with adjustable OCP level
Fully isolated plastic case with IP64 level
Built-in active PFC function
Pass LPS
Class 2 power unit
100% full load burn-in test
High reliability
Suitable for LED lighting and moving sign applications (Note.2)
Compliance to worldwide safety regulations for lighting
2 years warranty

Specifications

PLN-45-12Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE: 12V
CONSTANT CURRENT REGION^Note.6: 9 ~ 12V
RATED CURRENT: 3.8A
CURRENT RANGE: 0 ~ 3.8A
RATED POWER: 45.6W
RIPPLE & NOISE (max.)^Note.2: 2Vp-p
VOLTAGE ADJ. RANGE^Note.5: 11.5 ~ 13V
CURRENT ADJ. RANGE^Note.5: 3% ~ -25%. Can be adjusted by internal potentiometer SVR2
VOLTAGE TOLERANCE^Note.3: ±10%
LINE REGULATION: ±3.0%
LOAD REGULATION: ±5.0%
SETUP TIME: 500ms / 230VAC 1200ms / 115VAC at full load

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 295VAC 127 ~ 417VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.92/115VAC, PF>0.9/230VAC, PF>0.9/277VAC at full load (Please refer to "Power Factor Characteristic" curve)
TOTAL HARMONIC DISTORTION: THD< 20% when output loading≧75% at 115VAC/230VAC input and output loading≧80% at 277VAC input
EFFICIENCY (Typ.): 84.5%
AC CURRENT (Typ.): 0.55A/115VAC 0.275A/230VAC 0.22A/277VAC
INRUSH CURRENT (Typ.): COLD START 35A(twidth=50μs measured at 50% Ipeak) at 230VAC
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 42 units (circuit breaker of type B) / 42 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 240VAC

PROTECTION

OVER CURRENT: 95 ~ 110% Protection type : Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed.
OVER VOLTAGE: 13.8 ~ 16V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.: -30 ~ +50℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL879, UL1310, UL8750, CSA C22.2 No. 207-M89(except for 48V), TUV BS EN/EN61347-1, BS EN/EN61347-2-13 independent, CAN/CSA C22.2 No. 223-M91(except for 48V), CSA C22.2 No. 250.0-08(except for 48V), EAC TP TC 004, IP64 approved, design refer to UL60950-1
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
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 (≧75% 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, EAC TP TC 020

OTHERS

MTBF: 3444.5K hrs min. Telcordia SR-332 (Bellcore) ; 417.1Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 181*61.5*35mm (L*W*H)
PACKING: 0.5Kg; 24pcs/13Kg/0.87CUFT

Test conditions and notes12

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. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Derating may be needed under low input voltage. Please check the static characteristics for more details.
5. Output voltage can be adjusted through the SVR1 on the PCB ; limit of output constant current level can be adjusted through the SVR2 on the PCB.
6. Please refer to "DRIVING METHODS OF LED MODULE".
7. 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)
8. Direct connecting to LEDs is suggested, but is not suitable for using additional drivers.
9. 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.
10. 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).
11. For any application note and IP water proof function installation caution, please refer our user manual before using. https://www.meanwell.com/Upload/PDF/LED_EN.pdf
12. This product is not suitable for LED lighting applications in China.(It is recommended to use the LPF/NPF/XLG/XLC/XLN series in China)

Technical drawings

PLN-45-12 Mechanical Specification — Mechanical Specification

PLN-45-12 Derating Curve — Derating Curve

PLN-45-12 Power Factor Characteristic — Power Factor Characteristic

PLN-45-12 EFFICIENCY vs LOAD (48V Model) — EFFICIENCY vs LOAD (48V Model)

Downloads

Datasheet1

PLN-45-12 datasheetPLN-45-SPEC.PDF · 2026-02-09 edition PDF Download

Certificates6

EMC Certificate(PLN-45)(EN) PDF Download

CB Certificate(PLN-45)(EN) PDF Download

TUV Certificate(PLN-45)(EN) PDF Download

UL(e307078) Certificate(PLN-45)(EN) PDF Download

UL(e334687) Certificate(PLN-45)(EN) PDF Download

UL(e320521) Certificate (PLN-45)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the PLN-45-12 for 12V LED strip lighting?

It can be used for 12V lighting loads when the system matches the driver's constant current operating mode and stays within 45.6W. The output is 12V at 3.8A, with a 9-12V constant current range.

Is the PLN-45-12 suitable for brighter 12V signage than a 30W model?

It provides 45.6W at 12V and up to 3.8A, so it suits 12V signage or lighting loads up to that limit. Compare this with the rated power of the 30W model you are considering to judge the extra headroom.

Can the PLN-45-12 power 12V display or cabinet lighting?

It can suit 12V display, cabinet, or accent lighting loads that are designed for constant current use and do not exceed 45.6W. Its IP64 enclosure is useful where the lighting assembly is exposed to dust or splashes.

What 12V LED strip length can I estimate with the PLN-45-12?

The maximum power is 45.6W, so the strip length formula is 45.6W divided by the strip's rated watts per meter. Check your strip rated power per meter and verify compatibility with 12V output and constant current operation before sizing the run.

Can the PLN-45-12 be used in outdoor or damp conditions?

The IP64 rating means the driver is built for dust protection and resistance to splashing water, which suits many sheltered outdoor or damp lighting locations. It is rated for operation from -30C to +50C.

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Mean Well PLN-45-12 Power Supply 45W 12V - IP64 3.8A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Technical drawings

Downloads

Datasheet1

Certificates6

Catalogues1

FAQ

Payment & Security

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Mean Well PLN-45-12 Power Supply 45W 12V - IP64 3.8A

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