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Mean Well

Mean Well SCP-50-12 Power supply 49.7W 13.8V 3.6A

built-in temperature compensation functionno load power consumption<0.75Woutput voltage detection signal
SKU SCP-50-12
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Overview

SCP-50-12 is the 13.8V output model of this series: rated current 3.6A, rated power 49.7W, typical efficiency 81%.

Features

  • Universal AC input/Full range
  • Protections: Short circuit / Overload / Over voltage / Battery polarity protections (by fuse)
  • Built-in temperature compensation function
  • Output voltage detection signal
  • Cooling by free air convection
  • LED indicator for power on
  • No load power consumption <0.75W
  • Suitable for installation in metallic or non-metallic system enclosure
  • 100% full load burn-in test
  • 2 years warranty

Specifications

SCP-50-12Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
13.8V
RATED CURRENT
3.6A
CURRENT RANGE
0 ~ 3.6A
PEAK 5SNote.6
4.3A
RATED POWER
49.7W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
+15,-5%
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATIONNote.4
±1.0%
LOAD REGULATIONNote.5
±2.0%
SETUP, RISE TIME
600ms, 30ms/230VAC 1200ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGE
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY(Typ.)
81%
AC CURRENT (Typ.)
1.1A/115VAC 0.65A/230VAC
INRUSH CURRENT (Typ.)
COLD START 45A
LEAKAGE CURRENT
<2mA / 240VAC

FUNCTION

TEMP. COMPENSATION
By NTC (not provide with the power supply)
OUTPUT VOLTAGE SENSOR
L=output voltage +0.2 ~ 0.7V(AC OK); L=0V(AC Fail)

PROTECTION

OVERLOAD
4.3 ~ 5.8A rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
16.6 ~ 19.3V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-20 ~ +60℃ (Refer to output load derating curve)
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 45℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 7)

SAFETY STANDARDS
UL62368-1, CB(IEC62368-1), EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2.0KVAC 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) 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/ENV50204, BS EN/EN55035, BS EN/EN61000-6-1, light industry level, EAC TP TC 020

OTHERS

MTBF
2868.4K hrs min. Telcordia SR-332 (Bellcore) ; 495.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
129*98*38mm (L*W*H)
PACKING
0.45Kg; 30pcs/14.5Kg/0.95CUFT
Test conditions and notes8
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Line regulation is measured from low line to high line at rated load.
  5. 5. Load regulation is measured from 0% to 100% rated load.
  6. 6. 33% Duty cycle maximum within every 15 seconds. Average output power should not exceed the rated power.
  7. 7. 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 )
  8. 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

SCP-50-12 Mechanical Specification
Mechanical Specification
SCP-50-12 Block Diagram
Block Diagram
SCP-50-12 Derating Curve
Derating Curve
SCP-50-12 Function Description
Function Description
SCP-50-12 Function Description (2)
Function Description (2)

Downloads

FAQ

Can I use the SCP-50-12 for a mid-size 13.8V automation or control load?

Yes, if the equipment requires constant 13.8V DC and stays within 3.6A and 49.7W. That gives it more headroom than the 35.9W version for moderately larger control or embedded loads.

Is the SCP-50-12 suitable for communications or network-support hardware that runs on 13.8V DC?

It can be, provided the connected hardware is designed for 13.8V DC and the total load does not exceed 3.6A. The 85-264VAC input is also useful where the same equipment may be deployed across different AC mains environments.

Would this power supply fit a 13.8V panel with several low-power devices instead of one small load?

Potentially yes, because the available output is 13.8V at up to 3.6A with a 49.7W rating. It suits grouped low-power electronics better than a 2.6A unit, as long as the combined load remains inside the published limits.

Is the SCP-50-12 intended for indoor or outdoor environments?

Its operating temperature is -20°C to +60°C, so it can fit many indoor industrial or utility enclosures with that temperature profile. The provided specs do not include an IP rating, so outdoor weather exposure is not confirmed here.

How does the SCP-50-12 differ from the other SCP family members?

This model provides 49.7W at 13.8V and 3.6A. The other listed versions are SCP-35-12 at 35.9W, 13.8V, 2.6A; SCP-35-24 at 38.6W, 27.6V, 1.4A; SCP-50-24 at 49.7W, 27.6V, 1.8A; SCP-75-12 at 74.5W, 13.8V, 5.4A; and SCP-75-24 at 74.5W, 27.6V, 2.7A.

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Other SCP-50 Models

1 other model
ModelPowerVoltageCurrentBattery Voltage
Mean Well SCP-50-24 Power supply 49.7W 27.6V 1.8A 49.7W 27.6V 1.8A 27.6V View
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Mean Well SCP-50-12 Power supply 49.7W 13.8V 3.6A
Mean Well

Mean Well SCP-50-12 Power supply 49.7W 13.8V 3.6A

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SCP-50-12 is the 13.8V output model of this series: rated current 3.6A, rated power 49.7W, typical efficiency 81%.

Features

  • Universal AC input/Full range
  • Protections: Short circuit / Overload / Over voltage / Battery polarity protections (by fuse)
  • Built-in temperature compensation function
  • Output voltage detection signal
  • Cooling by free air convection
  • LED indicator for power on
  • No load power consumption <0.75W
  • Suitable for installation in metallic or non-metallic system enclosure
  • 100% full load burn-in test
  • 2 years warranty
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