ENMG / DIN-RAIL POWER SUPPLIES
SDR-E
Active-PFC DIN-rail power supplies in a 54 mm housing
Adjustable industrial DC power supplies with a wider terminal layout, active PFC and model-specific12,24 or48 V output.
Request a quote ↗TECHNICAL DATA / SDR-E
Specifications & selection.
- 85–264 VAC or120–370 VDC input.
- Three output-voltage selections.
- Natural convection with optional-QQ conformal coating.
| Model | Power | Output | Adjustment | Efficiency230VAC | Capacitive load |
|---|---|---|---|---|---|
| SDR-E-240-12 | 192 W | 12 V /16 A | 12–14 V | 93% | 160000 µF |
| SDR-E-240-24 | 240 W | 24 V /10 A | 24–28 V | 94% | 40000 µF |
| SDR-E-240-48 | 240 W | 48 V /5 A | 48–53 V | Not stated | 10000 µF |
| Parameter | Value |
|---|---|
| Input frequency | 47–63 Hz |
| Maximum input current | 3 A at115 VAC /1.5 A at230 VAC |
| Typical inrush | 15 A at115 VAC /30 A at230 VAC |
| Power factor | 0.98 at115 VAC /0.95 at230 VAC |
| Output accuracy | 12 V:±2%;24/48 V:±1% |
| Ripple,20 MHz peak-to-peak | 150 mV maximum |
| Overload protection | 110–200% of nominal, self-recovery in source |
| Overvoltage thresholds | 12 V:≤18 V;24 V:≤35 V;48 V:≤60 V |
| Peak power | 150% short-duration; obtain time/duty and recovery limits |
| DC OK contact | Not fitted |
| Leakage at264VAC | Touch<0.5 mA; earth<1 mA |
| Parameter | Value |
|---|---|
| Prose W × H × D | 54 ×124 ×110 mm |
| Original dimensioned photo | 54 ×129 ×120 mm; confirm complete envelope |
| Approximate mass | 600 g |
| Ambient / altitude | −40 to +70 °C; up to5000 m with derating |
| Above2000m | Reduce permitted ambient5 °C per1000 m, source rule |
| Withstand | I/O:3000 VAC; input/earth:2000 VAC; output/earth:500 VAC |
| Construction | Class I; aluminum/steel andPC945 plastic per material table |
Selection & installation notes
- Output current and power limits apply together, including when voltage is adjusted. Check low-input-voltage and temperature derating curves for the selected model.
- Connect protective earth and maintain vertical convection airflow. The source suggests20 mm above/below and5 mm at the sides; allow more beside hot equipment. Confirm terminal torque and wire size for the actual unit.
- Do not infer certified end-equipment compliance from referenced standards or logos. Request the exact model’s certification and verify EMC in the completed installation.
- A conformal-coating option does not make an open ventilated power supply waterproof.
- The240 designation does not give240 W on the12 V model, which is rated192 W in the source table.
- Verify the exact body revision because prose and original photograph dimensions differ. The material table does not support an all-stainless enclosure claim.
- Use an external approved monitoring device if a DC OK contact is required; an output LED is not a dry-contact signal.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG power supplies — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.