Name: MEAN WELL PLC-45 series: Single-output LED power supply - PLC-45-48
Brand: MEAN WELL
SKU: PLC-45-48
Price: 117.3 USD
Availability: InStock

MEAN WELL PLC-45 series: Single-output LED power supply - PLC-45-48

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Description

PLC-45-48 — Single-output LED power supply

MEAN WELL PLC-45-48 is a single-output LED power supply with 48 V DC output, a 0–0.95 A current range and 45.6 W listed output power. It accepts 90–264 VAC or 127–370 VDC, includes active power-factor correction and output voltage/current adjustment, and uses free-air convection cooling.

Download MEAN WELL PLC-45 Datasheet (PDF)
Download MEAN WELL LED Installation Manual (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

PLC-45: PDF pages 4–6.

Electrical specifications

Model	PLC-45-48
Output voltage	48 V DC
Constant-current voltage region	36–48 V
Output current	0–0.95 A; rated current 0.95 A.
Output power	45.6 W. Apply the specified input and temperature derating.
Output voltage adjustment	43.6–51.8 V
Output current adjustment	0.713–0.979 A
Efficiency	87.5% typical.
Series capability reference	The PLC-45 series reaches up to 87.5% efficiency across its models. Use this model’s typical efficiency and operating limits above.
Ripple and noise	4.6 Vp-p maximum; measured with 20 MHz bandwidth using a 12-inch twisted pair terminated by 0.1 µF and 47 µF capacitors in parallel.
Voltage tolerance	±10%; includes setup tolerance, line regulation and load regulation.
Line regulation	±3%
Load regulation	±5%
Test conditions	Unless otherwise specified: 230 VAC input, rated load and 25°C ambient.
Setup time	500 ms at 230 VAC; 1200 ms at 115 VAC, at full load.

Input and application conditions

Input voltage and frequency	90–264 VAC or 127–370 VDC; 47–63 Hz.
Power factor	Typical PF >0.92 at 115 VAC and >0.9 at 230 VAC, at full load.
Total harmonic distortion	THD <20% at 115 VAC or 230 VAC and ≥75% load.
AC input current	0.55 A typical at 115 VAC; 0.25 A typical at 230 VAC.
Inrush current	Cold start: 35 A typical at 230 VAC; pulse width 50 µs measured at 50% of peak current.
Leakage current	<0.75 mA at 240 VAC.
Input-voltage derating	The 60 Hz static-characteristic curve shows 80% load at 90 VAC and 100% from 100 to 264 VAC. Apply input and ambient-temperature derating together.
Mains switching and ErP	Use behind a physical switch and do not connect permanently to the mains, for compliance with current ErP requirements.
China lighting application	Not suitable for LED lighting luminaires in China. The datasheet points to the LPF, NPF, XLG, XLC and XLN families for suitable products; verify the required model separately.

Protection

Overcurrent protection	95–110%; constant-current limiting, with automatic recovery after the fault condition is removed.
Short-circuit protection	Hiccup mode; automatic recovery after the fault condition is removed.
Overvoltage protection	54–60 V; output shutdown, requiring re-powering to recover.
Overtemperature protection	Output shutdown; automatic recovery after the temperature falls.

Environment and reliability

Cooling	Free-air convection; no built-in fan.
Working environment	−30 to +50°C, subject to the derating curve; 20–95% RH, non-condensing.
Ambient-temperature derating	For horizontal installation, the ambient-temperature curve permits 100% load from −30°C through +50°C. +50°C is the specified upper operating ambient limit; the graph axis does not extend that rating.
Storage environment	−40 to +80°C; 10–95% RH.
High-altitude derating	For this fanless unit, reduce the permitted ambient temperature by 3.5°C per 1000 m above 2000 m altitude.
Temperature coefficient	±0.03%/°C over 0–50°C.
Vibration	10–500 Hz, 2 G, 12 minutes per cycle; 72 minutes each along the X, Y and Z axes.
Reliability	Minimum MTBF: 3444.5 kh to Telcordia SR-332; 417.1 kh to MIL-HDBK-217F at 25°C.
Production testing	High-reliability design with 100% full-load burn-in testing.
Manufacturer warranty	2 years.

Safety and EMC

Safety approvals	UL1310; TUV BS EN/EN61347-1 and BS EN/EN61347-2-13; EAC TP TC 004 approved. The CSA approval is excluded for the 48 V model.
Power-unit classification	Class 2 power unit; limited power source (LPS). SELV.
Withstand voltage	I/P to O/P: 3.75 kVAC. I/P to FG: 2 kVAC; O/P to FG: 0.5 kVAC.
Isolation resistance	I/P to O/P: 100 MΩ at 500 VDC, 25°C and 70% RH.
EMC emissions	BS EN/EN55015; BS EN/EN61000-3-2 Class C at ≥75% load; BS EN/EN61000-3-3; EAC TP TC 020.
EMC immunity	BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55024 and BS EN/EN61547; light-industry level; EAC TP TC 020.
Component-level EMC	This power supply is a component for installation in final equipment. Reconfirm the complete equipment’s EMC compliance with its actual wiring and load.

Mechanical details and installation

Dimensions	181.5 × 62 × 35 mm (L × W × H); case 991A. Drawing tolerance: ±1 mm.
Construction	Fully isolated plastic case with terminal-block input and output.
Mounting drawing references	The drawing shows two R2.5 mm and two R9 mm open mounting features and 6.3 mm end offsets. The left lower edge offset is 16.3 mm; the right upper edge offset is 16.6 mm. A 2.3 mm adjustment-feature projection is marked.
Case-temperature measuring point	The Tc measuring point is 90.75 mm from the right end and 31 mm from the upper edge in the top view. These are location dimensions, not a case-temperature rating.
Input and output terminals	TB1: pin 1 AC/L, pin 2 AC/N, pin 3 FG; SWITCHLAB MB310-75003. TB2: pin 1 +V, pin 2 −V; SWITCHLAB MB310-75002.
Output adjustment controls	Vo ADJ adjusts output voltage; Io ADJ adjusts output current. The notes identify SVR1 for voltage and SVR2 for current.
Switching frequency	90 kHz at 115 VAC; 120 kHz at 230 VAC.
Load application	Suitable for LED lighting and moving signs, subject to the application restrictions stated here. Use to drive LEDs directly; the datasheet does not support use with additional drivers. The constant-current region is 75–100% of rated voltage, with a hiccup region below it.
Constant-current compatibility	The highest operating voltage in constant-current mode depends on the end-system configuration. Contact MEAN WELL if compatibility issues arise.
Efficiency graph scope	The efficiency-versus-load graph illustrates the 48 V model at 115 VAC and 230 VAC; use the model-specific typical efficiency listed above for this selection.
Accessory scope	The terminal part numbers identify the connector references in the drawing. No dedicated MEAN WELL accessory order code is specified in these series pages.
Packing and weight	410 g catalog packing reference per unit, not a measured net weight. 30 pieces per carton; 13.3 kg per carton; 0.67 CUFT.
Datasheet location	PDF pages 4–6; specifications and curves dated 2024-09-25, mechanical page dated 2026-02-09.

Installation and system guidance

Installation isolation and service	Disconnect the supply from the mains before installation or maintenance and prevent unintended reconnection. Have faults examined by a qualified technician; do not open the case yourself.
Ventilation and mechanical support	Keep ventilation clear and do not stack objects on the unit. Maintain 10–15 cm clearance when an adjacent device is a heat source. Follow this model’s mounting orientation and derating diagrams. Check the mounting surface and luminaire structural strength; use safety cables for bay lighting applications. Do not immerse the unit in water.
Wiring and system enclosure	Use approved input and output wiring with current ratings at least equal to the applicable unit current. Follow this model’s terminal assignments. Connect the fitted FG terminal to PE. Provide insulation around system interconnections and enclose single-insulated wiring. Keep output current and power within the model ratings and derating limits. Have damaged external flexible cables replaced by the manufacturer, its service agent or similarly qualified personnel.
Circuit-breaker reference	At 230 V AC, the installation manual gives calculated maximum quantities for PLC-45 with ABB S200-series breakers: B10 26, B16 42, C10 26, C16 42, D10 26 and D16 42. B, C and D identify breaker trip curves; 10 and 16 identify ampere ratings. These counts apply to that stated breaker and voltage reference.
EMC integration	Reverify EMC in the finished equipment with the connected load and actual wiring and assembly. The linked guidance describes representative component-power-supply tests; its illustrated distances are test arrangements, not installation clearances.