Over 15 years experience of providing support of MEAN WELL Power Supplies
Overview
EPP-300-12 is the 12V output model of this series: typical efficiency 90%.
Features
- Universal AC input / Full range
- Built-in active PFC function
- High efficiency up to 93%
- Withstand 300VAC surge input for 5 seconds
- Protections: Short circuit / Overload / Over voltage / Over temperature
- Built-in 12V/0.5A auxiliary output
- 5"x3" compact size
- Free air convection for 200W and 300W with 20.5 CFM forced air
- With power good and fail signal output
- Built-in remote sense function
- No load power consumption under 0.5W by PS-ON control
- Standby 5V@1A with fan, @ 0.6A without fan
- Operating altitude up to 5000 meters
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 12V
- RATED CURRENT (20.5CFM)
- 25A
- CURRENT RANGE (convection)
- 0 ~ 16.67A
- CURRENT RANGE (20.5CFM)
- 0 ~ 25A
- RATED POWER (convection)
- 200W
- RATED POWER (20.5CFM)
- 300W
- RIPPLE & NOISE (max.)Note.2
- 120mVp-p
- VOLTAGE ADJ. RANGE
- Main output:11.4 ~ 12.6V
- VOLTAGE TOLERANCENote.3
- ±3.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±1.0%
- SETUP, RISE TIME
- 2500ms, 30ms/230VAC 3000ms, 30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 13ms/230VAC/115VAC at full load
INPUT
- VOLTAGE RANGENote.5
- 90 ~ 264VAC 127 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF>0.93/230VAC PF>0.98/115VAC at full load
- EFFICIENCY (Typ.)
- 90%
- AC CURRENT (Typ.)
- 3.5A/115VAC 1.8A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 40A/115VAC 80A/230VAC
- LEAKAGE CURRENT
- <2mA/240VAC
PROTECTION
- OVERLOAD
- 105 ~ 135% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 13.5 ~ 15V Protection type : Shut down o/p voltage, re-power on to recover
- OVER TEMPERATURE
- 115℃±5℃ (TSW1) detect on heatsink of power transistor 115±5℃ (12V,15V),100±5℃ (24V,27V,48V) (TSW2) detect on heatsink of output diode Protection type : (TSW1)Shut down o/p voltage, recovers automatically after temperature goes down Protection type : (TSW2)Shut down o/p voltage, re-power on to recover
FUNCTION
- 5V STANDBY
- 5VSB : 5V@0.6A without fan, 1A with fan 20.5CFM ; tolerance ± 2%, ripple : 150mVp-p(max.)
- AUXILIARY POWER (AUX)
- 12V@0.5A for driving a fan ; tolerance -15% ~ +10% at main output 20% rated current (20.5CFM)
- PS-ON INPUT SIGNAL
- Power on: PS-ON = "Hi" or " > 2 ~ 5V" ; Power off: PS-ON = "Low" or " < 0 ~ 0.5V"
- POWER GOOD / POWER FAIL
- 500ms>PG>10ms ; The TTL signal goes high with 10ms to 500ms delay after power set up ; The TTL signal goes low at least 1ms before Vo below 90% of rated value
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +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℃ )
- OPERATING ALTITUDENote.7
- 5000 meters
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC (Note 4)
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
- 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),Conduction Class B,Radiation 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/EN60601-1-2, EAC TP TC 020
OTHERS
- MTBF
- 1490.1K hrs min. Telcordia SR-332 (Bellcore) ; 160.3K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 127*76.2*35mm (L*W*H)
- PACKING
- 0.37 Kg; 36pcs/14.3Kg/0.96CUFT;
Test conditions and notes7
- 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. 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 )
- 5. Derating may be needed under low input voltages. Please check the derating curve for more details.
- 6. Heat Sink HS1,HS2 can not be shorted.
- 7. 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
Datasheet1
Certificates8
Test reports1
Catalogues1
FAQ
Can I use the EPP-300-12 for a 12V CCTV or security system power feed?
Yes, if the system needs a constant 12Vdc supply and the total load stays within 200W and 16.67A with convection cooling, or 300W and 25A with 20.5CFM forced airflow. That output level is often useful where several 12V security components share one supply budget.
Is the EPP-300-12 a fit for 12V industrial electronics or embedded controllers?
It is suitable for 12V embedded or industrial devices that require constant-voltage output and draw no more than 16.67A with convection cooling, or 25A with 20.5CFM airflow. The unit also accepts 90-264VAC input, which helps when AC source voltage varies by site.
Can this model power a 12V automation accessory bank or low-voltage control load?
It can, as long as the combined 12Vdc demand does not exceed 200W or 16.67A with convection cooling (300W or 25A with 20.5CFM airflow). Buyers should size the connected load against both the voltage and current limits, not wattage alone.
Will the EPP-300-12 work in cold or hot indoor equipment environments?
The specified operating range is -30 degrees C to +70 degrees C, with output derating at higher temperatures per the derating curve. No IP rating is provided, so the listed specs do not confirm suitability for exposed outdoor or wet environments.
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