Meanwell RD-125 Series Switching Power Supply

The Meanwell RD-125 Series Switching Power Supply provides 125W output with 12V and 24V options. Compact, efficient, and reliable power for industrial applications.

Model Number

RD-125A, RD-125B, RD-125-1224

Meanwell RD-125 Series Switching Power Supply Description

The Meanwell RD-125 Series Switching Power Supply offers reliable and efficient power for industrial applications. Designed with dual output options, including 12V and 24V, it provides stable, continuous power to various devices such as automation machinery and LED systems. With a robust, compact design and built-in protections like over-voltage and over-current, the RD-125 ensures both safety and longevity. It supports a wide input voltage range, making it suitable for global use.

Product Features:
● Dual Output: Provides 12V and 24V outputs, ideal for powering multiple devices simultaneously.
● High Efficiency: Up to 86% efficiency, minimizing energy loss.
● Wide Input Voltage Range: Operates on 88-264VAC, compatible with global power grids.
● Protection Features: Includes over-voltage, over-current, and short-circuit protection for added reliability.
● Compact Design: Space-saving and efficient, perfect for installations with limited space.
● Global Certifications: UL62368-1, TUV EN62368-1, and other certifications ensure safety and compliance with international standards.

Meanwell RD-125 Series Switching Power Supply Specification:

MODEL			RD-125A		RD-125B
OUTPUT	OUTPUT NUMBER		CH1	CH2	CH1	CH2
	DC VOLTAGE		5V	12V	5V	24V
	RATED CURRENT		7.7A	7.7A	4.6A	4.6A
	CURRENT RANGE	Note.3	0 ~ 12A	0 ~ 10A	0 ~ 10A	0 ~ 5A
	RATED POWER	Note.6	130.9W		133.4W
	RIPPLE & NOISE (max.) Note.2		80mVp-p	120mVp-p	80mVp-p	120mVp-p
	VOLTAGE ADJ. RANGE		CH1: 4.75 ~ 5.5V		CH1: 4.75 ~ 5.5V
	VOLTAGE TOLERANCE Note.3		±5.0%	±7.0%	±5.0%	±7.0%
	LINE REGULATION Note.4		±1.0%	±2.0%	±1.0%	±2.0%
	LOAD REGULATION	Note.5	±3.0%	±4.0%	±3.0%	±4.0%
	SETUP, RISE TIME		500ms, 20ms/230VAC 1200ms, 30ms/115VAC at full load
	HOLD UP TIME (Typ.)		25ms/230VAC 30ms/115VAC at full load
INPUT	VOLTAGE RANGE		88 ~ 132VAC / 176 ~ 264VAC selected by switch 248 ~ 373VDC(Withstand 300VAC surge for 5sec. Without damage)
	FREQUENCY RANGE		47 ~ 63Hz
	EFFICIENCY (Typ.)		82%		85%
	AC CURRENT (Typ.)		3A/115VAC 2A/230VAC
	INRUSH CURRENT (Typ.)		COLD START 50A/230VAC
	LEAKAGE CURRENT		<2mA / 240VAC
PROTECTION	OVERLOAD		110 ~ 150% rated output power
	OVERLOAD		Protection type : Hiccup mode, recovers automatically after fault condition is removed
	OVER VOLTAGE		CH1: 5.75 ~ 6.75V
	OVER VOLTAGE		Protection type : Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT	WORKING TEMP.		-25 ~ +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℃)on CH1 output
	VIBRATION		10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC (Note 7)	SAFETY STANDARDS		UL62368-1, TUV BS EN/EN62368-1, IS 13252(Part 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) Class B, BS EN/EN61000-3-2(Note 9),-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/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020
OTHERS	MTBF		2755.4K hrs min. Telcordia SR-332 (Bellcore) ; 425.8K hrs min. MIL-HDBK-217F (25℃)
	DIMENSION		1999838mm (LWH)
	PACKING		0.7Kg; 20pcs/15Kg/0.85CUFT
NOTE	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.(ln order to meet tolerance, it is recommended that CH1 load >15% rated current.)
	4. Line regulation is measured from low line to high line at rated load.
	5. Load regulation is measured from 20% to 100% rated load, and other output at 60% rated load.
	6. Each output can work within current range. But total output power can't exceed rated output power.
	7. 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 “EMl testing of component power supplies.”
	(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
	8. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
	9. Testing harmonic current at 85%load.
	10. 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).
	※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Download Resource:
Meanwell RD-125 Series Switching Power Supply Specification.pdf

①Shipping Fee
We offer a fixed shipping fee of $78 per order, regardless of size or weight, making shipping costs predictable and manageable.

②Handling Time
Orders for in-stock items are processed within 24 hours. Some items may require an additional 48-72 hours for processing, and we will notify you if this is the case.

③Delivery Time
Our typical delivery time is 3-7 days, depending on your location. In rare cases of delays due to weather, regulations, or holidays, we appreciate your understanding.

④Customs & Duties
Customs duties, taxes, and other import fees are the responsibility of the recipient. For specific requirements, please inform us before shipping.

⑤Tracking Your Order
You will receive a tracking number once your package is shipped. If you experience any issues, please contact us for assistance.

For more details, please see our [Complete Shipping Policy].

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Price range: $29.99 through $30.99

Model Number	RD-125A, RD-125B, RD-125-1224

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SKU: MWRD125XXXX Categories: Switching Power Supply, Vin = 100-240VAC

Description

MODEL			RD-125A		RD-125B
OUTPUT	OUTPUT NUMBER		CH1	CH2	CH1	CH2
	DC VOLTAGE		5V	12V	5V	24V
	RATED CURRENT		7.7A	7.7A	4.6A	4.6A
	CURRENT RANGE	Note.3	0 ~ 12A	0 ~ 10A	0 ~ 10A	0 ~ 5A
	RATED POWER	Note.6	130.9W		133.4W
	RIPPLE & NOISE (max.) Note.2		80mVp-p	120mVp-p	80mVp-p	120mVp-p
	VOLTAGE ADJ. RANGE		CH1: 4.75 ~ 5.5V		CH1: 4.75 ~ 5.5V
	VOLTAGE TOLERANCE Note.3		±5.0%	±7.0%	±5.0%	±7.0%
	LINE REGULATION Note.4		±1.0%	±2.0%	±1.0%	±2.0%
	LOAD REGULATION	Note.5	±3.0%	±4.0%	±3.0%	±4.0%
	SETUP, RISE TIME		500ms, 20ms/230VAC 1200ms, 30ms/115VAC at full load
	HOLD UP TIME (Typ.)		25ms/230VAC 30ms/115VAC at full load
INPUT	VOLTAGE RANGE		88 ~ 132VAC / 176 ~ 264VAC selected by switch 248 ~ 373VDC(Withstand 300VAC surge for 5sec. Without damage)
	FREQUENCY RANGE		47 ~ 63Hz
	EFFICIENCY (Typ.)		82%		85%
	AC CURRENT (Typ.)		3A/115VAC 2A/230VAC
	INRUSH CURRENT (Typ.)		COLD START 50A/230VAC
	LEAKAGE CURRENT		<2mA / 240VAC
PROTECTION	OVERLOAD		110 ~ 150% rated output power
	OVERLOAD		Protection type : Hiccup mode, recovers automatically after fault condition is removed
	OVER VOLTAGE		CH1: 5.75 ~ 6.75V
	OVER VOLTAGE		Protection type : Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT	WORKING TEMP.		-25 ~ +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℃)on CH1 output
	VIBRATION		10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC (Note 7)	SAFETY STANDARDS		UL62368-1, TUV BS EN/EN62368-1, IS 13252(Part 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) Class B, BS EN/EN61000-3-2(Note 9),-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/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020
OTHERS	MTBF		2755.4K hrs min. Telcordia SR-332 (Bellcore) ; 425.8K hrs min. MIL-HDBK-217F (25℃)
	DIMENSION		1999838mm (LWH)
	PACKING		0.7Kg; 20pcs/15Kg/0.85CUFT
NOTE	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.(ln order to meet tolerance, it is recommended that CH1 load >15% rated current.)
	4. Line regulation is measured from low line to high line at rated load.
	5. Load regulation is measured from 20% to 100% rated load, and other output at 60% rated load.
	6. Each output can work within current range. But total output power can't exceed rated output power.
	7. 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 “EMl testing of component power supplies.”
	(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
	8. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
	9. Testing harmonic current at 85%load.
	10. 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).
	※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

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