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Mean Well

Mean Well PLN-45-48 Power Supply 45W 48V - IP64 950mA

$41.06 USD
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Overview

PLN-45-48 is the 48V output model of this series: rated current 0.95A, rated power 45.6W, typical efficiency 87.5%.

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-45-48Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE
48V
CONSTANT CURRENT REGIONNote.6
36 ~ 48V
RATED CURRENT
0.95A
CURRENT RANGE
0 ~ 0.95A
RATED POWER
45.6W
RIPPLE & NOISE (max.)Note.2
4.6Vp-p
VOLTAGE ADJ. RANGENote.5
43.6 ~ 51.8V
CURRENT ADJ. RANGENote.5
3% ~ -25%. Can be adjusted by internal potentiometer SVR2
VOLTAGE TOLERANCENote.3
±10%
LINE REGULATION
±3.0%
LOAD REGULATION
±5.0%
SETUP TIME
500ms / 230VAC 1200ms / 115VAC at full load

INPUT

VOLTAGE RANGENote.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.)
87.5%
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
54 ~ 60V 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. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Derating may be needed under low input voltage. Please check the static characteristics for more details.
  5. 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. 6. Please refer to "DRIVING METHODS OF LED MODULE".
  7. 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. 8. Direct connecting to LEDs is suggested, but is not suitable for using additional drivers.
  9. 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. 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. 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. 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-45-48 Mechanical Specification
Mechanical Specification
PLN-45-48 Block Diagram
Block Diagram
PLN-45-48 Derating Curve
Derating Curve
PLN-45-48 Power Factor Characteristic
Power Factor Characteristic
PLN-45-48 EFFICIENCY vs LOAD (48V Model)
EFFICIENCY vs LOAD (48V Model)

Downloads

FAQ

Can I use the PLN-45-48 for 48V LED strip lighting in signage?

It can be used with a 48V lighting load when the total load stays within 45.6W and 0.95A. This model is rated IP64, so it fits enclosed or protected sign lighting where a 48V output is required.

Is the PLN-45-48 suitable for slim channel or cabinet-style 48V linear lighting?

Yes, if the fixture or strip is designed for a 48V supply and the total demand does not exceed 45.6W. Its compact housing is 181.0 × 61.5 × 35.0 mm, which can help where space is limited around enclosed lighting assemblies.

Can this driver power 48V accent lighting for commercial displays?

It is appropriate for 48V display or accent lighting loads up to 45.6W. The wide 90-295VAC input also suits projects where the incoming AC supply may vary across locations.

How much 48V LED strip can the PLN-45-48 support?

Use the strip's rated watts per meter to estimate the maximum length: 45.6W ÷ strip watts per meter = maximum meters. For example, the power budget is capped at 45.6W, so you should check your strip rated power per meter and keep the total load within 45.6W and 0.95A.

Can the PLN-45-48 be used outdoors or in wet locations?

Its IP64 rating means the enclosure has protection against dust ingress and splashing water. That makes it a better fit for damp or sheltered outdoor areas than an open indoor-only unit, but the final suitability depends on keeping the installation within its rated environmental protection and operating range of -30°C to +50°C.

Payment & Security

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Mean Well PLN-45-48 Power Supply 45W 48V - IP64 950mA
Mean Well

Mean Well PLN-45-48 Power Supply 45W 48V - IP64 950mA

$41.06 USD

PLN-45-48 is the 48V output model of this series: rated current 0.95A, rated power 45.6W, typical efficiency 87.5%.

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
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