ENCLOSED SWITCHING POWER SUPPLY

LRS-75 Switching Power Supply

70–76.8W Enclosed Switching Power Supply

Compact enclosed AC/DC switching power supply available with 5V, 12V, 15V, 24V, 36V and 48V DC output versions for industrial control, automation and general electronic equipment.

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Hong Kong MING WELL LRS-75 enclosed switching power supply

70–76.8W Rated Power Range

5–48V Output Voltage Options

85–264VAC AC Input Range

Up to 91.5% Efficiency

99 × 97 × 30 mm Overall Dimensions

PRODUCT OVERVIEW

LRS-75 Switching Power Supply

The LRS-75 Series provides six DC output voltage versions: 5V, 12V, 15V, 24V, 36V and 48V. Rated output power ranges from 70W to 76.8W depending on the selected model.

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Wide Input Range

85–264VAC or 120–370VDC input.

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Six Output Versions

5V, 12V, 15V, 24V, 36V and 48V DC outputs.

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Compact Size

Overall dimensions: 99 × 97 × 30 mm.

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Wide Temperature Range

Operating temperature: -30°C to +70°C.

OUTPUT SPECIFICATIONS

LRS-75 Model Range

Electrical output specifications for each available voltage version.

Specification	LRS-75-5	LRS-75-12	LRS-75-15	LRS-75-24	LRS-75-36	LRS-75-48
DC Voltage	5V	12V	15V	24V	36V	48V
Rated Current	14A	6A	5A	3.2A	2.1A	1.6A
Current Range	0–14A	0–6A	0–5A	0–3.2A	0–2.1A	0–1.6A
Rated Power	70W	72W	75W	76.8W	75.6W	76.8W
Ripple & Noise	100mVp-p	120mVp-p	120mVp-p	150mVp-p	200mVp-p	200mVp-p
Voltage Adjustment Range	±10%	±10%	±10%	±10%	±10%	±10%
Voltage Accuracy	±2.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%
Line Regulation	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
Load Regulation	±1.0%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
Efficiency	86.5%	89%	89%	90%	91.5%	91.5%
Overvoltage Protection	5.75–6.75V	13.8–16.2V	18.75–21.75V	28.8–33.6V	41.4–48.6V	55.2–64.8V

TECHNICAL DATA

General Specifications

Input

Voltage Range 85–264VAC / 120–370VDC

Frequency Range 47–63Hz

AC Current 1.4A / 115VAC, 0.85A / 230VAC

Inrush Current 65A / 230VAC, cold start

Leakage Current < 0.75mA / 240VAC

Timing

Start / Rise Time 500ms / 30ms at 230VAC; 500ms / 30ms at 115VAC, at full load

Hold-up Time 60ms at 230VAC; 12ms at 115VAC, at full load

Environment

Working Temperature -30°C to +70°C

Working Humidity 20–90% RH, non-condensing

Storage Temperature / Humidity -40°C to +85°C, 10–95% RH, non-condensing

Temperature Coefficient ±0.03% / °C (0–50°C)

Vibration 10–500Hz, 5G, 10 min/cycle; X, Y and Z axes, 60 min each

Overvoltage Category Category II; EN61558, EN50178, EN60664-1, EN62477-1; altitude up to 2000 m

Safety & Mechanical

Withstand Voltage I/P–O/P: 4KVAC; I/P–FG: 2KVAC; O/P–FG: 1.25KVAC

Isolation Resistance I/P–O/P, I/P–O/P–FG: 100MΩ / 500VDC / 25°C / 70% RH

MTBF ≥ 763.6K hrs, MIL-HDBK-217F (25°C)

Dimensions 99 × 97 × 30 mm

Packaging 0.25kg; 45pcs / 12.25kg / 0.77CUFT

Safety Standards

Safety Norms UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1/-2-16, CCC GB4943.1, BSMI CNS1436-1, EAC TC TP 004, AS/NZS 60950.1 (by CB)

EMC

EMC Emission EN55032 (CISPR32) Class B, EN55014, EN61000-3-2, EN61000-3-3, GB/T 9254, BSMI CNS 13438, EAC TP TC 020

EMC Immunity EN61000-4-2,3,4,5,6,8,11; EN61000-6-2 (EN50082-2); Class A heavy industrial standard; EAC TP TC 020

PROTECTION

Built-in Protection Functions

Overload Protection

Protection range is approximately 110%–150% of rated output power. Hiccup-mode protection is used. The power supply automatically recovers after the abnormal load condition is removed.

Overvoltage Protection

The overvoltage protection level depends on the selected output model. Protection turns off the output voltage and recovery is achieved after restart. The individual protection ranges are shown in the model table above.

MECHANICAL DIMENSIONS

LRS-75 Dimension Drawing

Mechanical enclosure and mounting dimensions.

LRS-75 switching power supply dimensions

Overall Size: 99 × 97 × 30 mm

DIMENSIONS IN MILLIMETERS

APPLICATIONS

Typical Applications

Industrial Automation Automation equipment and production systems.

Control Equipment Electrical control and monitoring equipment.

Electronic Equipment Equipment requiring stable DC power.

Industrial Systems Compact power applications in industrial equipment.

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