Ad-155 Series 12V/24V/48V 155W UPS Function Adjustable Battery Charger AC DC Regulated LED Driver SMPS Switching Power Supply for Security CCTV Laptop

Product Description

155W Single Output with Battery Charger (UPS Function)  

Features :

Universal AC input / Full range

Protections: Short circuit / Overload / Over voltage

Battery low and battery polarity protection

Cooling by free air convection

100% full load burn-in test

Fixed switching frequency at PFC 67KHz, PWM 134KHz

2 years warranty

155W UPS Functional Switching Power Supply

UPS Power Supplies for Security and Emergency Lighting

The AD-155 series is a switching power supply (with UPS functionality) that integrates battery charge management. It supports a full-range input voltage of 88–264 VAC, making it compatible with power grids worldwide without the need for a toggle switch. The series offers three models to meet different voltage requirements:

AD-155A: Main output 13.8 V / 11.5 A

AD-155B: Main output 27.6V / 5.5A

AD-155C: Main output 27.6V / 5.0A 

With dimensions of just 199 × 110 × 50 mm and a net weight of 0.88 kg, its compact design facilitates rack mounting. It utilizes natural air convection cooling (Free Air Convection); the fanless design ensures quiet operation and higher reliability, making it suitable for 24/7 continuous operation.

A power solution tailored for critical security applications such as CCTV surveillance, burglar alarms, and emergency lighting systems. It features an integrated dual-channel output:

CH1 Main Output: 27.6V / 5.0A, providing continuous power to security equipment

CH2 Battery Charging Output: 27.1V / 0.5A, automatically charging the backup battery

When mains power is available, the power supply powers the load while providing float charging to the battery; when mains power fails, it automatically and seamlessly switches to battery power (UPS mode), ensuring that critical equipment such as surveillance, alarm, and emergency lighting systems never go offline. Built-in low-voltage battery protection (shutdown at 19.5V ± 1.5V) and reverse battery connection protection effectively prevent damage caused by over-discharge or incorrect connections. The unit's highly reliable design, combined with a 2-year warranty, makes it the ideal backup power solution for security contractors and system integrators.

MODEL	AD-155A		AD-155B		AD-155C
Output number	CH1	CH2	CH1	CH2	CH1	CH2
DC voltage	13.8V	13.3V	27.6V	27.1V	54V	53.5V
Rated Current	10.5A	0.5A	5A	0.5A	2.7A	0.2A
Current Range	0~11.5A	0-0.5A	0~5.5A	0-0.5A	0-2.7A	0-0.5A
Rated Power	151.55W		151.55W		156.5W
Ripple&Noise	150mVp-p	--------	150mVp-p	--------	240mVp-p	--------
Voltage Adj.Range	CH1:12~14.5V		CH1:24~29V		CH1:48-58V
Voltage Tolerance	±2.0%	--------	±1.0%	--------	±1.0%	--------
Line Regulation	±0.5%	--------	±0.5%	--------	±0.5%	--------
Load Regulation	±0.5%	--------	±0.5%	--------	±0.5%	--------
Setup,Rise Time	1000ms, 90ms/230VAC          2000ms, 90ms/115VAC at full load
Hold UpTime	24ms/230VAC          20ms/115VAC at full load
Voltage Range	88~264VAC47~63Hz; 124~370VDC
AC Current	2.5A/115VAC          1.5A/230VAC
Efficiency	80%		84%		84%
Inrush Current	Cold start 20A/115VAC   40A/230VAC
Leakage Current	<1mA /240VAC
WorkingTemp.	-10~+60℃(Refer to“Derating Curve”)
Working Humidity	20~90%RH non-condensing
Storage Temp.,Humidity	-20~+85℃,10~95%RH
Temp.Coefficient	±0.03%/ ℃(0~50℃ )
Vibration	10~500Hz,2G10min./1cycle,60min.each along X, Y,Z axes
Safety Standards	UL60950-1, TUV EN60950-1
Withstand Voltage	I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
Isolation Resistance	I/P-O/P,I/P-FG,O/P-FG:100M Ohms/500VDC /25℃ /70%RH
EMCEmission	Compliance to EN55022(CISPR22) Class B, EN61000-3-2,-3
EMCImmunity	Compliance to EN61000-4-2,3,4,5,6,8,11,EN55024,light industry level, criteria A
Dimension	199*110*50mm (L*W*H)
Weight	0.88Kg
Packing	16pcs/carton/15kg/0.95CUFT

Application Range

Company Introduction

Company Introduction

Leyu , based in Wenzhou Leqing, enjoys a developed economy and convenient air, water, rail, and road transport. For 14 years, we have specialized in designing and producing switching power supplies and off-grid solar inverters, with CE, ROHS, CCC, IP67, and ISO9001 certifications. Our modern production and testing equipment ensure reliable performance—our 0.3‰ defect rate far exceeds the national 3% standard.

We offer OEM/ODM services (design, prototyping, production, testing, delivery) backed by senior engineers and strong R&D partnerships. Leyu products are exported to over 50 countries across Europe, the Americas, Southeast Asia, South America, and Africa. Our young, energetic foreign trade team (avg. 3 years' experience) and our commitment to sincere, attentive service have built a trusted brand. As a high-tech enterprise integrating R&D, production, sales, and technical support, Leyu strives to become a national-class electrical company.

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