MEAN WELL LRS-35 Series 35W Single Output Switching Power Supply

Description

The LRS-35 series is a 35W single-output enclosed type power supply with a 30mm low profile design. Adopting a full-range 85~264VAC input, the series provides output voltages of 5V, 12V, 15V, 24V, 36V, and 48V. With high efficiency up to 89%, the metallic mesh case enhances heat dissipation, allowing the series to operate from -30°C to 70°C under free air convection without a fan. Delivering extremely low no-load power consumption (less than 0.2W), it helps end systems meet worldwide energy requirements. The LRS-35 series features complete protection functions and 5G anti-vibration capability, complying with international safety regulations such as TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, UL62368-1, and GB4943. It serves as a high price-to-performance power supply solution for various industrial applications.

Features

Universal AC input / Full range
Withstand 300VAC surge input for 5 seconds
No load power consumption <0.2W
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

Applications

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

Model Encoding

The model encoding follows the pattern: LRS - 35 - [Output Voltage]. For example, LRS-35-5 indicates a 5V output model.

Specifications

MODEL	LRS-35-5	LRS-35-12	LRS-35-15	LRS-35-24	LRS-35-36	LRS-35-48
MODEL	OUTPUT	DC VOLTAGE	5V	12V	15V	24V	36V	48V
RATED CURRENT		7A	3A	2.4A	1.5A	1A	0.8A
CURRENT RANGE		0~7A	0~3A	0~2.4A	0~1.5A	0~1A	0~0.8A
RATED POWER		35W	36W	36W	36W	36W	38.4W
RIPPLE & NOISE (max.) Note.2		80mVp-p	120mVp-p	120mVp-p	150mVp-p	200mVp-p	200mVp-p
VOLTAGE ADJ. RANGE		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		±2.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%
INPUT	LINE REGULATION Note.4	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
	LOAD REGULATION Note.5	±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
	VOLTAGE RANGE	85~264VAC / 120~373VDC
ENVIRONMENT	FREQUENCY RANGE	47~63Hz
	EFFICIENCY (Typ.)	82%	86%	86%	88%	88%	89%
	AC CURRENT (Typ.)	0.7A/115VAC / 0.42A/230VAC
	INRUSH CURRENT (Typ.)	COLD START 45A/230VAC
PROTECTION	LEAKAGE CURRENT	<0.75mA / 240VAC
	OVER LOAD	110~150% rated output power. Protection type: Hiccup mode, recovers automatically after fault condition is removed.
	OVER VOLTAGE	5.75~6.9V	13.8~16.2V	18.75~21.75V	28.8~33.6V	41.4~48.6V	55.2~64.8V
ENVIRONMENT	WORKING TEMP.	-30~+70°C (Refer to "Derating Curve")
	WORKING HUMIDITY	20~90% RH non-condensing
	STORAGE TEMP., HUMIDITY	-40~+85°C, 10~95% RH non-condensing
ENVIRONMENT	TEMP. COEFFICIENT	±0.03%/°C (0~50°C)
ENVIRONMENT	VIBRATION	10~500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC (Note 9)	OVER VOLTAGE CATEGORY	III; According to BS EN/EN61558, BS EN/EN50178, BS EN/EN60664-1, BS EN/EN62477-1; altitude up to 2000 meters
	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-35-12/24 only), BIS IS13252(Part1): 2010/IEC 60950-1: 2005 approved
	ISOLATION RESISTANCE	I/P-O/P:4KVAC / I/P-FG:2KVAC / O/P-FG:1.25KVAC
	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-35-12/24 only)
OTHERS	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, criteria A, EAC TP TC 020, KC KN32,KN35(for LRS-35-12/24 only)
OTHERS	MTBF	763.6K hrs min. MIL-HDBK-217F (25°C)
	DIMENSION	998230mm (LWH)
	PACKING	0.23Kg ; 60pcs/14.8Kg/0.88CUFT

Notes

All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C 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.
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°C/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)

Diagrams and Characteristics

Block Diagram

The block diagram illustrates the power supply's internal structure: Input (I/P) is processed through an EMI Filter, then Rectifiers & Filter, followed by Power Switching. This is controlled by a Control block, which also interfaces with Overload Protection (OLP), Over Voltage Protection (OVP), and a Detection Circuit. The output stage includes another Rectifiers & Filter stage before delivering the final +V and -V outputs. The Frame Ground (FG) is connected to earth ground.

Derating Curve

The Derating Curve shows the relationship between Ambient Temperature (°C) on the X-axis and Load (%) on the Y-axis. For 230VAC input, the power supply can operate at full load up to approximately 60°C and then derates. For 100VAC input only, the load capacity is reduced, especially at higher temperatures.

Static Characteristics

The Static Characteristics graph plots Load (%) on the Y-axis against Input Voltage (VAC) 60Hz on the X-axis. It demonstrates that the power supply maintains high load capacity across its universal input voltage range (85-264VAC).

Mechanical Specifications

The power supply has dimensions of 99mm (Length) x 82mm (Width) x 30mm (Height). The terminal pin assignments are as follows:

Pin No.	Assignment	Pin No.	Assignment
1	AC/L	4	DC OUTPUT -V
2	AC/N	5	DC OUTPUT +V
3	FG

Installation and Support

For detailed installation instructions, please refer to the official MEAN WELL manual available at: http://www.meanwell.com/manual.html.

For product liability disclaimer and further information, please visit: https://www.meanwell.com/serviceDisclaimer.aspx.

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