24V DC 5A 120W Switching Power Supply

$107.67

24V DC switching power supply converts 110V/220V AC to DC with rated current 5A and rated power 120W, mounting in DIN rail .

SKU: CHN-SMPS-120-24

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Delivery date: 6-12 days

Overview
Documents

Features

AC input range selectable by switch
Protections: short circuit, overload, overvoltage and over temperature
Cooling by free air convection
Installed on DIN rail TS-35/7.5 or 15
LED indicator for power on
100% full load burn-in test

Specification

Model		CHN-DR-120-24
Output	DC Voltage	24V
	Rated Current	5A
	Current Range	0 ~ 5A
	Rated Power	120W
	Ripple & Noise (Max.)(Note 2)	80mVp-p
	Voltage Adjust Range	24 ~ 28V
	Voltage Tolerance (Note 3)	±1.0%
	Line Regulation	±0.5%
	Load Regulation	±1.0%
	Setup, Rise, Holdup Time	500ms, 70ms, 36ms/230V AC 500ms, 70ms, 32ms/115V AC
Input	Voltage Range	88 ~132V /176 ~ 264V AC by switch or 248 ~ 370V DC
	Frequency Range	47~63Hz
	Efficiency (Typ.)	84%
	AC Current (Typ.)	2.6A/115V AC 1.6A/230V AC
	Inrush Current (Typ.)	Cold start: 20A/115V AC 40A/230V AC
	Leakage Current	<3.5mA/240V AC
Protection	Overload	105~150% rated output power Protection type: Constant current limiting, recovers automatically after fault condition is removed.
	Overvoltage	29V ~ 33V Protection type: Shut down o/p voltage, re-power on to recover.
	Over temperature	90"C+5"C(TSW1) Protection type: Protection type: Shut down output voltage, and recover automatically after temperature goes down.
Environment	Working Temperature	-10 ~ +60℃
	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 (Note 4)	Safety Standards	UL60950-1, TUV EN60950-1 Approved
	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 EN55022 (CISPR22) Class B, EN61000-3-2, -3
	EMC Immunity	Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, EN61000-6-2, EN61204-3, heavy industry level, criteria A
Others	MTBF	≥432.1K hrs MIN. MIL-HDBK-217F (25℃)
	Dimension	65.5125.2100mm (WHD)
	Weight	0.79kg
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. 4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives.

Dimensions (Unit: mm)

Tips: Protective circuit of DC switching power supply (SMPS)

1. Protective circuit for overcurrent

To protect modulation tube from being burned out in short circuit or instant increase of current, DC switching power supply cuts off power when output current exceeds a threshold value and sets the modulation tube at reverse bias.

2. Protective circuit for overvoltage

Overvoltage protection of switch regulator in DC SMPS refers to input overvoltage protection and output overvoltage protection. If unregulated DC voltage used by switch regulator appears excessively high (such as accumulator and rectifier), the regulator will be unable to work properly or will even damage its internal components. Therefore, switching power supply must be equipped with input overvoltage protective circuit.

3. Protective circuit for overheat

Highly-integrated, small-size and light-weight switch regulator in DC switching power supply has greatly improved power density of unit volume. If requirements for working temperature of internal components of the power supply fall behind, the performance of the circuit will become poorer and the components will be even ineffective. Therefore, high-power DC SMPS shall be provided with overheat protective circuit.

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