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Mean Well EPP-120S-27 Power Supply 120W 27V 4.44A
Overview
EPP-120S-27 is the 27V output model of this series: typical efficiency 94%.
EPP-120S is a 120W highly reliable green PCB type power supply with a high power density on the 3" by 2" footprint. It accepts 80~264VAC input and offers various output voltages between 12V and 48V. The working efficiency is up to 94% and the extremely low no load power consumption is down below 0.3W.EPP-120S is able to be used for both ClassⅠ(with FG) and ClassⅡ(no FG) system design. EPP-120S has the complete protection functions; it is complied with the international safety regulations such as TUV BS EN/EN62368-1, BS EN/EN60335-1, UL62368-1 and IEC62368-1. EPP-120S series serves as a high price-to-performance power supply solution for various industrial applications.
Features
- 3"×2" Compact Size
- 120W convection,150W peak (10sec.)
- EMI for both ClassⅠ& Class Ⅱ configuration
- -30~+85℃ wide range operating temperature
- No load power consumption<0.3W
- High efficiency up to 94%
- Protections: Short circuit / Overload / Over voltage / Over temperature
- Operating altitude up to 5000 meters (Note.5)
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 27V
- CURRENT Peak(10 sec.)
- 5.55A
- CURRENT Convection
- 4.44A
- RATED POWER Peak(10 sec.)
- 149.8W
- RATED POWER Convection
- 119.9W
- RIPPLE & NOISE (max.)Note.2
- 150mVp-p
- VOLTAGE ADJ. RANGE
- 25.6 ~ 28.4V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±1.0%
- SETUP, RISE TIME
- 600ms, 30ms/230VAC 600ms, 30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 15ms/230VAC 15ms/115VAC at full load
INPUT
- VOLTAGE RANGENote.4
- 80 ~ 264VAC 113 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR
- PF>0.94/230VAC PF>0.98/115VAC at full load
- EFFICIENCY (Typ.)
- 94%
- AC CURRENT (Typ.)
- 2.3A/115VAC 1.1A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 30A/115VAC 60A/230VAC
- LEAKAGE CURRENT
- <0.75mA / 240VAC
PROTECTION
- OVERLOAD
- 130~160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 29.7 ~ 35V Protection type : Shut down o/p voltage, re-power on to recover
- OVER TEMPERATURE
- Protection type : Hiccup mode, recovers automatically after temperature goes down
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +85℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP.
- -40 ~ +85℃
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
- OPERATING ALTITUDENote.5
- 5000 meters
SAFETY & EMC
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, BS EN/EN60335-1, IEC62368-1, CCC GB4943.1, EAC TP TC 004 approved
- WITHSTAND VOLTAGE
- I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG: 100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
-
GB9254.1 Class B,GB17625 Class A
Parameter Standard Test Level Conducted emission BS EN/EN55032 (CISPR32) Class B Radiated emission BS EN/EN55032 (CISPR32) ClassⅠ: Class B , Class Ⅱ: Class A Harmonic current BS EN/EN61000-3-2 Class A Voltage flicker BS EN/EN61000-3-3 - EMC IMMUNITY
-
BS EN/EN55035, BS EN/EN61000-6-2
Parameter Standard Test Level ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 3, 4KV contact RF field susceptibility BS EN/EN61000-4-3 Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz ) EFT bursts BS EN/EN61000-4-4 Level 3, 2KV Surge susceptibility BS EN/EN61000-4-5 Level 4, 4KV/Line-FG; 2KV/Line-Line Conducted susceptibility BS EN/EN61000-4-6 Level 3, 10V Magnetic field immunity BS EN/EN61000-4-8 Level 4, 30A/m Voltage dip, interruption BS EN/EN61000-4-11 95% dip 0.5 periods, 30% dip 25 periods, 95% interruptions 250 periods
OTHERS
- MTBF
- 4071.1K hrs min. Telcordia SR-332 (Bellcore) ; 470.2K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 76.2*50.8*28mm (L*W*H) or 3" * 2" *1.1" inch
- PACKING
- 0.13Kg; 100pcs/14Kg/1.13CUFT
Test conditions and notes6
- 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. Derating may be needed under low input voltages. Please check the derating curve for more details.
- 5. 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).
- 6. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
Technical drawings
Typical applications
- Industrial automation machinery
- Industrial control system
- Mechanical and electrical equipment
- Electronic instruments, equipments or apparatus
Downloads
Datasheet1
Certificates9
Test reports1
Catalogues1
FAQ
Can I use the EPP-120S-27 in a 27V industrial control panel?
Yes, if the control hardware needs a constant 27V DC supply and the total load stays within 4.44A and 119.9W. Its 80-264VAC input also suits panels that may be fed from different AC mains ranges.
Is this 27V power supply suitable for embedded automation equipment?
It can be a fit for embedded or OEM equipment designed for constant 27V DC input. The available output is 27V at up to 4.44A, with a compact 76.2 × 50.8 × 28.0 mm size for space-limited builds.
Can the EPP-120S-27 power 27V test or measurement systems?
Yes, for bench, service, or monitoring equipment that specifically requires 27V constant voltage and does not exceed 119.9W. Buyers should match both the 27V output and the 4.44A current limit to the connected load.
How do I know if 119.9W is enough for my 27V load?
This model provides up to 27V, 4.44A, and 119.9W, so the connected equipment needs to stay at or below those limits. It is intended for constant-voltage 27V applications rather than loads that need a different output mode.
Is the EPP-120S-27 suitable for outdoor or harsh-environment use?
The listed specs show an operating range of -30°C to +85°C, with load derating at higher ambient temperatures per the derating curve, but they do not include an IP rating. That supports use in protected indoor equipment where temperature range matters, not exposed outdoor locations that require a sealed enclosure rating.
Payment & Security
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Other EPP-120S Models
4 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well EPP-120S-48 Power Supply 120W 48V 2.5A | 120W | 48V | 2.5A | IP20 | $32.90 | View |
| Mean Well EPP-120S-24 Power Supply 120W 24V 5A | 120W | 24V | 5A | IP20 | $32.90 | View |
| Mean Well EPP-120S-15 Power Supply 114W 15V 7.6A | 114W | 15V | 7.6A | IP20 | $32.90 | View |
| Mean Well EPP-120S-12 Power Supply 114W 12V 9.5A | 114W | 12V | 9.5A | IP20 | $32.49 | View |
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