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Mean Well WDR-120-48 Single Output Industrial Power Supply 120W 48V...
Overview
WDR-120-48 is the 48V output model of this series: rated current 2.5A, rated power 120W, typical efficiency 92% / 400V.
Features
- Single and two phase wide input range 180 ~ 550VAC
- Protections: Short circuit / Overload / Over voltage / Over temperature
- Cooling by free air convection
- Built-in constant current limiting circuit
- Can be installed on DIN rail TS-35/7.5 or 15
- UL508(industrial control equipment)approved
- BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
- 100% full load burn-in test
- Built-in DC OK relay contact
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- RATED CURRENT
- 2.5A
- CURRENT RANGE
- 0 ~2.5A
- RATED POWER
- 120W
- RIPPLE & NOISE (max.)Note.2
- 150mVp-p
- VOLTAGE ADJ. RANGE
- 48 ~ 58V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE, HOLD UP TIME
- 2000ms, 70ms, 50ms/400VAC 2000ms, 70ms, 10ms/230VAC at full load
INPUT
- VOLTAGE RANGE
- 180 ~ 550VAC 254 ~ 780VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 92% / 400V
- AC CURRENT
- 0.7A/400VAC 1.2A/230VAC
- INRUSH CURRENT (max.)
- COLD START 50A
- LEAKAGE CURRENT
- <3.5mA / 530VAC
PROTECTION
- OVERLOAD
- 105 ~ 130% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 60 ~ 67V Protection type : Shut down o/p voltage, re-power on to recover
- OVER TEMPERATURE
- Shut down o/p voltage, recovers automatically after temperature goes down
FUNCTION
- DC OK SIGNAL
- Relay contact rating(max.) : 30V / 1A resistive
ENVIRONMENT
- WORKING TEMP.
- -25 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- Component: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting clip: Compliance to IEC60068-2-6
SAFETY & EMC (Note 4)
- SAFETY STANDARDS
- UL508, EAC TP TC 004 , BIS IS13252(Part1)(only for 12V,24V) approved, IEC62368-1 CB approved by SIQ; Design refer to BS EN/EN62368-1, AS/NZS 62368.1(meet BS EN/EN60204-1)
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC O/P-DC OK: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, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61204-3, BS EN/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020
OTHERS
- MTBF
- 1509.6K hrs min. Telcordia SR-332 (Bellcore) ; 268.1K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 40*125.2*113.5mm (W*H*D)
- PACKING
- 0.65Kg; 20pcs/14Kg/1.0CUFT
Test conditions and notes6
- 1. All parameters NOT specially mentioned are measured at 400VAC 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. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quick may lead to increase of the set up time.
- 6. 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 WDR-120-48 in a 48V industrial control panel?
Yes, this unit is suitable for 48V control panels and industrial cabinets that need up to 120W at 48V DC. Its rated output is 2.5A, and the DIN rail body uses a 40.0 mm slim profile for compact enclosures.
Is this model suitable for 48V building automation or monitoring equipment?
It can be used for 48V building automation and monitoring equipment when the total demand remains within 120W and 2.5A. The wide 180-550VAC input range also supports use in panels fed from 1 phase or 2 phase input power.
Can the WDR-120-48 be used for 48V industrial automation devices on DIN rail?
Yes, it is intended for DIN rail industrial applications that require a 48V DC source and fit within its 2.5A output capacity. The metal case and slim housing are useful for organized control cabinet layouts.
Is this power supply intended for protected enclosures or exposed environments?
This model is better suited to control cabinets and other protected enclosures. The listed operating range is -25°C to +70°C, but no exposed-location or outdoor IP rating is provided in the specs.
How does the WDR-120-48 differ from the rest of the WDR family?
At 120W, the series offers WDR-120-12 at 12V, 10A, WDR-120-24 at 24V, 5A, and WDR-120-48 at 48V, 2.5A. Higher-capacity models are WDR-240-24 at 240W, 24V, 10A, WDR-240-48 at 240W, 48V, 5A, WDR-480-24 at 480W, 24V, 20A, and WDR-480-48 at 480W, 48V, 10A. Lower-capacity versions are WDR-60-12 at 60W, 12V, 5A, WDR-60-24 at 60W, 24V, 2.5A, and WDR-60-48 at 60W, 48V, 1.25A.
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