MEAN WELL ELP-75-24 is an open-frame single-output AC/DC power supply rated 24 V, 3.15 A and 75.6 W. It provides active PFC, low no-load consumption and an optional cover/L-bracket arrangement. Natural-convection operation is subject to the model-specific temperature and load limits.
Product Datasheet
Download MEAN WELL ELP-75 Datasheet (PDF)
The ELP-75 section is on PDF pages 5, 6. Refer to the complete mechanical drawings and notes when planning installation.
Model-Specific DC Output
Nominal output
24 V DC.
Rated continuous output
3.15 A / 75.6 W, subject to the cooling and temperature limits.
Specified current range
0–3.15 A; continuous loading remains limited by the rated current and power.
Ripple and noise, maximum
240 mVp-p.
Output-voltage adjustment
21.6–26.4 V using SVR1.
Voltage tolerance
±1.0%.
Line / load regulation
±0.5% / ±1.0%.
Efficiency, typical
90%.
Unless stated otherwise, specifications are measured at 230 VAC, rated load and 25°C. Ripple/noise uses 20 MHz bandwidth and a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes set-up tolerance, line regulation and load regulation.
Input and Operating Features
Input range
90–264 VAC or 127–370 VDC; AC frequency 47–63 Hz.
Input current, typical
1.8 A at 115 VAC; 1 A at 230 VAC.
Cold-start inrush, typical
60 A at 230 VAC.
Leakage current
Less than 1 mA at 240 VAC.
Set-up / rise time
2500 / 50 ms at both 230 VAC and 115 VAC, full load.
Hold-up time, typical
20 ms at 230 VAC; 20 ms at 115 VAC, full load.
Switching-frequency reference
100 kHz in the block diagram.
Power indication
Built-in power-on LED.
Power-factor correction
Built-in active PFC; typical PF >0.95 at 230 VAC and >0.98 at 115 VAC, full load.
No-load consumption
Less than 0.5 W.
Protection
Short circuit / overload
105–150% of rated output power; hiccup mode with automatic recovery after the fault is removed.
Overvoltage
27.6–32.4 V; output shutdown, re-power on to recover.
Cooling, Derating and Environment
Operating temperature
-30–70°C; allowable load follows the horizontal-installation curve.
Cooling
Free-air convection. Keep the ventilation path clear and apply the curve for the actual installation.
Thermal limit for this output
At 24 V, full load extends to 50°C, then decreases linearly to 60% load at 70°C.
Low-temperature input condition
At 230 VAC, the curve permits full load from −30°C. At 115 VAC, allowable load rises from 80% at −30°C to 100% at −20°C.
Input-voltage derating
At 60 Hz: 80% load at 90 VAC, rising to 100% at 100 VAC; the full-load plateau continues through 264 VAC.
Working humidity
20–90% RH, non-condensing.
Storage
Temperature -40–85°C; humidity 10–95% RH.
Temperature coefficient
±0.03%/°C over 0–50°C.
Vibration
10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.
High-altitude temperature adjustment
Above 2000 m, reduce allowable ambient temperature by 3.5°C per 1000 m for fanless operation or 5°C per 1000 m for fan-cooled operation.
Apply the input-voltage and temperature limits together; a wide operating-temperature range does not mean full power at every temperature.
Dimensions, Grounding and Connections
Dimensions, L × W × H
175 × 60 × 27 mm; drawing tolerance ±1 mm.
Mounting layout
Four Ø3.8 mm holes; indicated mounting-centre spacing 165 × 50 mm. The drawing shows up to 3 mm projection below the board.
On-board AC fuse marking
T2.5A / 250 V.
Safety grounding
M1 is the safety-ground point. For improved EMC, provide electrical connection between M1, M2, M3 and chassis ground.
AC input CN1
JST B3P-VH or equivalent: pin 1 AC/L; pin 2 no pin; pin 3 AC/N.
DC output CN2
JST B6P-VH or equivalent: pins 1–3 −V; pins 4–6 +V.
Input / output mating references
JST VHR housing family and JST SVH-21T-P1.1 contacts, or equivalents.
Optional cover / L-bracket
Cover 996A-T and L-bracket 996A-D are optional accessories.
Optional-case configuration
195 × 68.5 × 33 mm overall; 540 g single-unit reference weight with the optional case. The standard PCB configuration described here is 175 × 60 × 27 mm and 250 g.
Choose complete mating housings by circuit count and wire size. Mating housings, contacts and any external fan should be specified separately; the connector reference table does not state that loose mating parts are supplied. Follow the manufacturer installation instructions and maintain the required safety clearances.
Safety, EMC and Isolation
Listed safety approvals
UL62368-1, TUV BS EN/EN62368-1 and EAC TP TC004.
Withstand voltage
Input–output 3 kVAC; input–FG 2 kVAC; output–FG 0.5 kVAC.
Insulation resistance
Input–output, input–FG and output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
Emissions
BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC020.
Immunity
BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55024, heavy-industry level; EAC TP TC020.
The power supply is a component for installation in final equipment. EMC testing uses a 360 × 360 mm metal plate, 1 mm thick. Confirm that the completed installation satisfies the applicable EMC and safety requirements.
Weight, Reliability and Catalogue
Single-unit reference weight
250 g (0.25 kg), explicitly listed per unit under PACKING; not the carton weight.
Carton packing
PCB: 48 pieces / 13 kg / 0.96 CUFT; optional case: 25 pieces / 14.5 kg / 0.7 CUFT.
MTBF, minimum estimates
2229.2 thousand hours under Telcordia SR-332 (Bellcore); 345.3 thousand hours under MIL-HDBK-217F at 25°C.
Warranty
3-year manufacturer warranty, subject to applicable terms.
Catalogue revision
ELP-75-SPEC, 2026-03-31; combined PDF pages 5–6.
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