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Mean Well SDR-75-48 Single Output Industrial Power Supply 75W 48V 1...
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SDR-75-48 is the 48V output model of this series: rated current 1.6A, rated power 76.8W, typical efficiency 90%.
Features
- High efficiency 90% and low power dissipation
- 150% peak load capability
- Protections: Short circuit / Overload / Over voltage / Over temperature
- Cooling by free air convection
- Can be installed on DIN rail TS-35/7.5 or 15
- UL 508 (industrial control equipment) approved
- BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
- 100% full load burn-in test
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- RATED CURRENT
- 1.6A
- CURRENT RANGE
- 0 ~ 1.6A
- RATED POWER
- 76.8W
- PEAK CURRENT
- 2.34A
- PEAK POWERNote.6
- 112.5W (3 sec.)
- RIPPLE & NOISE (max.)Note.2
- 120mVp-p
- VOLTAGE ADJ. RANGE
- 48 ~ 55V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±1.0%
- SETUP, RISE TIME
- 1500ms, 60ms/230VAC 3000ms, 60ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 80ms/230VAC 20ms/115VAC at full load
INPUT
- VOLTAGE RANGENote.7
- 88 ~ 264VAC 124 ~ 370VDC [DC input operation possible by connecting AC/L(+),AC/N(-)]
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 90%
- AC CURRENT (Typ.)
- 1.4A/115VAC 0.85A/230VAC
- INRUSH CURRENT (Typ.)
- 30A/115VAC 50A/230VAC
- LEAKAGE CURRENT
- <1mA / 240VAC
PROTECTION
- OVERLOAD
- Normally works within 110 ~ 150% rated output power for more than 3 seconds and then shut down o/p voltage, re-powr on to recover 150 ~ 170% rated power, constant current limiting with auto-recovery within 3 seconds, and then shut down o/p voltage after 3 seconds, re-powr on to recover
- OVER VOLTAGE
- 56 ~ 65V Protection type : Shut down o/p voltage, re-power on to recover
- OVER TEMPERATURE
- 100℃±10℃ (RTH2) detect on main of power transistor Protection type : Shut down o/p voltage, re-powr on to recover after temperature goes down
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 95% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 60℃)
- VIBRATION
- Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
SAFETY & EMC (Note 4)
- SAFETY STANDARDS
- UL508, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004 approved, design refer to GL ;(meet BS EN/EN60204-1)
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
- 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). BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN61204-3, heavy industry level, EAC TP TC 020, SEMI F47 approved
OTHERS
- MTBF
- 2670.8K hrs min. Telcordia SR-332 (Bellcore) ; 479.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 32*125.2*102mm (W*H*D)
- PACKING
- 0.51Kg; 28pcs/15.3Kg/1.23CUFT
Test conditions and notes8
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
- 5. Installation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
- 6. 3 seconds max., please refer to peak loading curves.
- 7. Derating may be needed under low input voltage. Please check the derating curve for more details.
- 8. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
Technical drawings
Downloads
FAQ
Can I use the SDR-75-48 in a 48V control panel for industrial automation equipment?
Yes, this model is built for DIN rail control cabinets that need a 48V DC supply. It provides 48V at 1.6A with 76.8W total output, and its slim 32 × 125.2 × 102 mm (W × H × D) housing helps when enclosure space is limited.
Is the SDR-75-48 suitable for building management panels that use 48V DC devices?
It can be a fit for building management enclosures when the connected 48V loads stay within 1.6A and 76.8W. The 88-264VAC input range also makes it practical for panels fed from common AC supply ranges.
Can this power multiple 48V control components inside one DIN rail cabinet?
It can support multiple 48V components if their combined demand does not exceed 1.6A or 76.8W. Because it is a DIN rail unit with a slim profile, it is better suited to organized cabinet layouts than open mounting areas.
Does the SDR-75-48 make sense for 48V automation loads that have short peak demand?
It can handle brief peaks, because the sheet lists a peak current of 2.34A and peak power of 112.5W for up to 3 seconds. The normal continuous rating is still 48V, 1.6A, and 76.8W, so the ongoing load needs to stay within that range.
Can the SDR-75-48 be used directly in an exposed area, or should it stay inside a control cabinet?
This model is better suited to control cabinet or enclosure use. The product data lists a DIN rail form factor and an operating temperature range of -30°C to +70°C with derating per the derating curve, but it does not list an IP rating for exposed washdown or outdoor placement.
How does the SDR-75-48 compare with other Mean Well SDR series DIN rail power supplies?
Within the SDR-75 series, the SDR-75-48 offers 76.8W at 48V, 1.6A (adjustable 48-55V). The SDR-75-24 provides 76.8W at 24V, 3.2A, and the SDR-75-12 provides 75.6W at 12V, 6.3A. All three share the 88-264VAC input, 32 mm wide DIN rail housing, and 112.5W peak power for up to 3 seconds; the 48V model has the highest typical efficiency at 90%.
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Other SDR-75 Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SDR-75-24 Single Output Industrial Power Supply 75W 24V 3.2A - DIN Rail | 76.8W | 24V | 3.2A | IP20 | View |
| Mean Well SDR-75-12 Single Output Industrial Power Supply 75W 12V 6.3A - DIN Rail | 75.6W | 12V | 6.3A | IP20 | View |
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