MEAN WELL LRS-50 Series Single Output Switching Power Supply Owner’s Manual

: June 10, 2024
: MEAN WELL

Table of Contents

Features
Description
Model Encoding
Applications
GTlN CODE
SPECIFICATION
Block Diagram
Derating Curve
Static Characteristics
Mechanical Specification
Installation Manual
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MEAN WELL LRS-50 Series Single Output Switching Power Supply Owner’s Manual

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℃
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℃ through 70℃ 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 antivibration 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.

Model Encoding

Symbols

Applications

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

GTlN CODE

MW Search: https://www.meanwell.com/serviceGTIN.aspx

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| 18.75 ~ 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 CNS15598-1, 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(except for LRS-50-48) 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 CNS15936, 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),BS EN/EN55035,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 0.1uf & 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 start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
3.3V,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.
8. 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 thickness.
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 EMI testing of component power supplies.(as available on http://www.meanwell.com)
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