24V DC 12.5A 300W Switching Power Supply

Favorable price and high quality 24V DC 12.5A switching power supply convert full range of AC to DC at the 300W rated power. Compact size SMPS power supply is cooled by built-in DC fan, with short circuit, overload and overvoltage protection, widely used in almost all of the electronic equipment.

SKU: CCHN-SMPS-300-24

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Delivery date: 6-25 days

Overview

Features

Univeral AC input/Full range
Protections: short circuit, overload and overvoltage
Forced air cooling by built-in DC fan
PWM control and regulated
100% full load burn-in test
Low cost, compact size and high efficiency

Specification

Model		CCHN-S-300-24
Output	DC Voltage	24V
	Rated Current	12.5A
	Current Range	0 ~ 12.5A
	Rated Power	300W
	Ripple & Noise (Max.)(Note 2)	150mVp-p
	Voltage Adjust Range	20 ~ 26.4V
	Voltage Tolerance (Note 3)	±1.0%
	Line Regulation	±0.5%
	Load Regulation	±0.5%
	Setup, Rise, Holdup Time	200ms, 50ms, 20ms at full load
Input	Voltage Range	90 ~ 132VAC/180V~264VAC (selected by a switch) or 254 ~ 370VDC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	81%
	AC Current (Typ.)	6.5A/115V AC 4A/230V AC
	Inrush Current (Typ.)	Cold start: 50A/230V AC
	Leakage Current	<3.5mA/240V AC
Protection	Overload	105~135% rated output power Protection type: Constant current limiting, recovers automatically after fault condition is removed.
	Overvoltage	27.6~32.4V Protection type: Hiccup mode, recovers automatically after fault condition is removed.
	Over temperature	RTH3 ≥65°C FAN ON, ≤55°C FAN OFF, ≥80°C output shut down.
Environment	Working Temperature	-10 ~ +50℃
	Working Humidity	20~90% RH non-condensing
	Storage Temperature	-20~+85℃
	Storage Humidity	10~95% RH non-condensing
	Temperature Coefficient	±0.03%/℃ (0~50℃)
	Vibration	10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
Safety & EMC	Withstand Voltage	I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
Safety & EMC	Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
Others	MTBF	≥234.3K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	21511550mm (LWH)
	Weight	1.1kg
Note	1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance includes set up tolerance, line regulation and load regulation.

Dimensions (Unit: mm)

Details

SMPS Power Supply Applications

Power Tools
Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
Offices Devices
Computer, Printer, LCD Monitor, Scanning Machine, etc.
Electrics & Household Appliance
TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
Industrial Equipemnt
Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.

Tips: How to maintain switching power supply (SMPS)?

In case of power failure, users can carry out maintenance by visual check, smelling, asking and measuring.

Visual check: Open shell of the switching power supply to check whether the SMPS fuse has been blown. Check internal part of the SMPS power supply. If components on PCB are burned out, users shall check surrounding components and relevant circuit components.
Smelling: Check whether there is burnt smell in internal part of the SMPS power supply and whether there is burnt-out component.
Asking: Ask damaging process of the switching power supply and check whether there is violative operation.
Measuring: Use multimeter to measure voltage at both ends of the HV capacitor before powering on.