MEAN WELL LRS-50 Series 50W Single Output Switching Power Supply Instruction Manual

: October 27, 2023
: MEAN WELL

Table of Contents

LRS-50 Series 50W Single Output Switching Power Supply
Features
Description
Applications
GTIN CODE
Model Encoding
SPECIFICATION
Mechanical Specification
References
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LRS-50 Series 50W Single Output Switching Power Supply
Instruction Manual

LRS-50 Series 50W Single Output Switching Power Supply

50W Single Output Switching Power Supply

Features

Universal AC input / Full range
Withstand 300VAC surge input for 5 second
No load power consumption<0.3W
Miniature size and 1U low profile
High operating temperature up to 70°C
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Compliance to IEC/BS EN/EN 60335-1(PD3) and IEC/BS EN/EN61558-1, -2-16 for household appliances
Operating altitude up to 5000 meters (Note.8)
Withstand 5G vibration test
High efficiency, long life and high reliability
LED indicator for power on
Over voltage category III
100% full load burn-in test
3 years warranty

Description

LRS-50 series is a 50W single-output enclosed type power supply with 30mm of low profile design. Adopting the full range 85-264VAC input, the entire series provides an output voltage line of 3.3V, 5V, 12V, 15V, 24V, 36V and 48V. In addition to the high efficiency up to 90%, the design of metallic mesh case enhances the heat dissipation of LRS-50 that the whole series operates from -30°C through 70°C under air convection without a fan. Delivering an extremely low no load power consumption (less than 0.2W), it allows the end system to easily meet the worldwide energy requirement. LRS-50 has the complete protection functions and 5G anti-vibration capability; it is complied with the international safety regulations such as TUV BS EN/EN62368-1, BS EN/EN60335-1,BS EN/EN61558-1/-2-16, UL62368-1 and GB4943. LRS-50 series serves as a high price-to-performance power supply solution for various industrial applications.

Applications

Industrial automation machinery
Industrial control system
Mechanical and electrical equipment
Electronic instruments, equipments or apparatus
Household appliances

GTIN CODE

MW Search https:Awatmeanwell.comiseMceGTIN.asax

Model Encoding

SPECIFICATION

MODEL| LRS-50-3.3| LRS-50-5| LRS-50-12| LRS-50-15| LRS-50-24| LRS-50-36| LRS-50-48
---|---|---|---|---|---|---|---

OUTPUT

| DC VOLTAGE| 3.3V| 5V| 12V| 15V| 24V| 36V| 48V
RATED CURRENT| 10A| 10A| 4.2A| 3.4A| 2.2A| 1.45A| 1.1A
CURRENT RANGE| 0 ~ 10A| 0 ~ 10A| 0 ~ 4.2A| 0 ~ 3.4A| 0 ~ 2.2A| 0 ~ 1.45A| 0 ~ 1.1A
RATED POWER| 33W| 50W| 50.4W| 51W| 52.8W| 52.2W| 52.8W
RIPPLE & NOISE (max.) Note.2| 80mVp-p| 80mVp-p| 120mVp-p| 120mVp-p| 150mVp-p| 200mVp-p| 200mVp-p
VOLTAGE ADJ. RANGE| 2.97 ~ 3.6V| 4.5 ~ 5.5V| 10.2 ~ 13.8V| 13.5 ~ 18V| 21.6 ~ 28.8V| 32.4 ~ 39.6V| 43.2 ~ 52.8V
VOLTAGE TOLERANCE Note.3| ±3.0%| ±2.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%
LINE REGULATION **Note.4| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%
LOAD REGULATION Note.5| ±2.0%| ±1.0%| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%
SETUP, RISE TIME| 1000ms, 30ms/230VAC 2000ms,30ms/115VAC at full load
HOLD UP TIME (Typ.)**| 30ms/230VAC 12ms/115VAC at full load

INPUT

| VOLTAGE RANGE| 85 ~ 264VAC 120 ~ 373VDC
FREQUENCY RANGE| 47 ~ 63Hz
EFFICIENCY (Typ.)| 80%| 83%| 86%| 88%| 88%| 89%| 90%
AC CURRENT (Typ.)| 0.95A/115VAC 0.56A/230VAC
INRUSH CURRENT (Typ.)| COLD START 45A/230VAC
LEAKAGE CURRENT| <0.75mA / 240VAC

PROTECTION

| ****

OVER LOAD

| 110 ~ 150% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed

OVER VOLTAGE

| 3.8 ~ 4.45V| 5.9~ 7.3V| 13.8 ~ 17.2V| 18.7 ~25.75V| 28.8 ~ 36.6V| 41.4 ~ 51.6V| 55.2 ~ 67.8V
Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

| WORKING TEMP.| -30 ~ +70℃ (Refer to “Derating Curve”)
WORKING HUMIDITY| 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY| -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT| ±0.03%/℃ (0 ~ 50℃)
VIBRATION| 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
OVER VOLTAGE CATEGORY| Ⅲ; Compliance to BS EN/EN61558, BS EN/EN50178, BS EN/EN60664-1, BS EN/EN62477-1; altitude up to 2000 meters

SAFETY & **EMC**

(Note 9)

| ****

SAFETY STANDARDS

| UL62368-1, TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16,CCC GB4943.1, BSMI CNS14336-1, EAC TP TC 004, AS/NZS 60950.1(by CB),KC K60950-1(for LRS-50-12/24 only), BIS IS13252(Part1): 2010/IEC 60950-1: 2005 approved
WITHSTAND VOLTAGE| I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.25KVAC
ISOLATION RESISTANCE| I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION| Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN55014, BS EN/EN61000-3-2,-3, GB/T 9254, BSMI CNS13438, EAC TP TC 020,KC KN32,KN35(for LRS-50-12/24 only)
EMC IMMUNITY| Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020,KC KN32,KN35(for LRS-50-12/24 only)

OTHERS

| MTBF| 3149.8K hrs min.Telcordia SR-332 (Bellcore) ; 561.6Khrs min. MIL-HDBK-217F (25℃)
DIMENSION| 998230mm (LWH)
PACKING| 0.23Kg; 60pcs/14.8Kg/0.88CUFT

Note

All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
Ripple & noise are measured at 20MHz of bandwidth by using a 12″ twisted pair-wire terminated with a 1uf & 47uf parallel capacitor.
Tolerance : includes set up tolerance, line regulation and load regulation.
Line regulation is measured from low line to high line at rated load.
Load regulation is measured from 0% to 100% rated load.
Length of set up time is measured at cold first Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
3V,5V when the load factor 0~50%, the switching power less is reduced by burst operation, which will cause ripple and ripple noise to go beyond the specifications.
The ambient temperature derating of 5℃/1000m is needed for operating altitude greater than 2000m(6500ft).
The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMl testing of component power supplies.”(as available on http://www.meanwell.com)

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Block Diagram MEAN WELL LRS-50 Series 50W Single Output Switching Power
Supply fig 3