Sc-35-12 with UPS Function AC to DC 12V 2.9A Switching Power Supply Industrial SMPS for Access Control Networks

Product Description

Product Features

SC-35 Mini UPS Power Supply

Features:

1. Universal AC input/Full rang

2. Protection: Short circuit / Overload / Over voltage / battery polarity protections(by fuse)

3. Cooling by free air convection

4. LED indicator for power on

5. No load power consumption<1W

6. Suitable for installation in metallic or non-metallic system enclosure

7. 100% full load burn-in test

8. 2 years warranty

 

35W Mini UPS with Built-in Battery Charger

Smart Battery Management

Compact 35W design specifically for home routers, modems, and small security devices. Dual output design (CH1 for load, CH2 for battery charging) ensures uninterrupted power during outages. Ideal power supply with battery charger for 24/7 home and SOHO applications.

Long-term online float charging saturates battery to >90%, auto-stops when full to prevent overcharging and extend battery life. Built-in battery low voltage cutoff (9.5~11V for 12V model) protects batteries from deep discharge damage.

Global Certifications & 2-Year Warranty

3KVAC I/P-O/P isolation.

Zero Transfer Time & Cold Start – Automatic AC/DC switchover with zero transfer time ensures your WiFi network and security devices never drop during power failures. Supports battery cold start even without AC mains—useful for initial setup and emergency situations.

Ultra-Compact 111×78×36mm & Fanless Silent – Only 111×78×36mm, weighs just 0.3Kg. Free air convection cooling, zero noise, zero maintenance. Perfect for home, office, and enclosed security cabinets where space is at a premium.

Specification

Model	SC-35-12		SC-35-24
DC voltage	CH1:13.8V	CH2:13.4V	CH1:27.6V	CH2:26.5V
Voltage tolerance	±2%	-----	±1%	-----
Rated current	2.0A	0.5A	1.0A	0.3A
Current range	0~2.0A	-----	0~1.0A	-----
Rated power	34.3W		35.6W
Ripple&noise	120mvp-p	-----	120mvp-p	-----
DCvoltage ADJ.range	CH1:11.3~14.9V		CH1:21.3~29.8V
Setup,rise,hold time	800ms,50ms,80ms/230VAC, 1600ms,50ms,16ms/115VAC
Voltage range	90~264VAC,127~370VDC
frequency	47~63HZ
AC current	0.9A/115VAC,0.45A/230VAC
efficiency	81%		83%
Inrush current	Cold start current 25A/115VAC,45A/230VAC
Leakage current	< 1mA/240VAC
Over load	Rated output power110%~150% start over load protection
	protection mode: AC charging mode:hiccup mode auto-recovery after fault condition is removed
Battery protection	9.5~11V		20~22V
At low voltage	protection mode:cutoff output
UPS introduction	long-term online floating charge to battery,high charging efficiency,battery can saturate to more than 90% ,cauto-stop charging when it's full,prevent over charging. Effectively extend battery life,AC/battery auto switch ,no switch time,no need human guard,
	cold-start ,when there is no AC input ,can use battery start UPS,Meet the user's emergency needs
Working temp,humidity	-10℃~+60℃,20%~90%RH
Storagetemp,humidity	-20℃~+85℃,10%~95%RH non-condensing
Withstand vibration	10~500HZ,2G 10min/1cycle,period for 60 minutes,each axes
Withstand voltage	I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
Isolated resistance	I/P-O/P,I/P-FG,O/P-FG:100Mohms/500VDC
Safety standard	Compliance to UL60950-1,EN-60950-2006
EMC standard	Compliance to EN55022,CLASSB
Dimension	111*78*36mm (L*W*H)
Weight/packing	0.3kg/50pcs/16kg/0.027m³/0.96CUFT
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and25℃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.

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.

Company Advantage

Customer Centric  Service First

Own Factory  Quality Assured

Technology Driven  Continuous Innovation

Leyu puts you first—sincere service, solid tech, reliable quality, fast response, and worry-free shipping. We tailor parameters, design, and functions to your exact needs. Trust us as your long-term partner.

Leyu Electric (est. 2005) is a certified high-tech manufacturer (ISO, CE, RoHS, CCC). We enforce strict quality control from procurement to delivery, guaranteeing reliable and safe power supply units.

Backed by a skilled R&D team, Leyu Electric drives continuous innovation. Our core products—switching power supplies, off-grid inverters, and charge controllers—are widely used in automation, LED lighting, telecom, and renewable energy.

Main Product

Customer Distribution

Packing & Delivery