TÜV Rheinland Onsite-Verified Manufacturer Yueqing, Zhejiang, China
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Engineered switching power supplies, TS35 DIN rail units, off-grid inverters, and DC converters tested to rigorous international standards.

Showing Industrial-Grade Verified Models
CE Compliant 100% Full-Load Burn-In TÜV Verified Facility
CE Certified 100W Switching Power Supply Universal AC DC SMPS
Enclosed SMPS

100W Switching Power Supply 5V 18A / 12V 8.5A / 24V 4.5A / 48V 2.3A Universal AC-DC

100W Output Universal AC Input Short Circuit Prot.
$8.68 - $9.80 MOQ: 1 pc
Slim Design LRS-100 100W Slim Power Supply 30mm Thickness
LRS Series

LRS-100 100W Slim Enclosed Power Supply 30mm Profile 12V 8.5A / 24V 4.5A

1U Low Profile Overvoltage Prot. High Efficiency
$9.00 MOQ: 5 pcs
Surge Resistant 100W Industrial Switching Power Supply 300VAC Surge Input
Industrial AC-DC

100W Industrial Switching Power Supply 300VAC Surge Withstand (5s) 12V / 24V / 48V

300VAC Surge 5s Vibration Proof Industrial Grade
$8.00 - $9.00 MOQ: 1 pc
Class II Double Insulated 100W Industrial DIN Rail Power Supply Class II
DIN Rail Series

100W Industrial DIN Rail Power Supply 24V 3.83A Class II No Grounding Required

TS-35 Mounting Class II Isolation Building Auto
$16.62 - $20.31 MOQ: 1 pc
Active PFC SP-500 500W Power Supply with Active PFC
SP Series

SP-500 500W High Power Supply 13.5V 36A / 27V 18A Active PFC for Telecom & Radio

PF > 0.95 Built-in Fan Speed 500W Heavy Duty
$50.77 - $55.38 MOQ: 1 pc
Smart Cooling 500W 24V 20A AC DC Converter Power Supply for CNC
CNC & 3D Printing

500W 24V 20A Industrial AC-DC Converter with Smart Fan & Thermal Protection

24V / 20A Stable Over Temp Prot. High Current
$50.77 - $55.38 MOQ: 1 pc
Ultra-Slim Profile HDR-30 30W Slim DIN Rail Power Supply
HDR Series

HDR-30 30W Step-Shape DIN Rail Power Supply 5V 3A / 12V 2A / 24V 1.5A

Step Shape Housing Ultra Slim 35mm Distribution Box
$9.23 - $11.50 MOQ: 1 pc
Heavy Industry PFC 240W Industrial DIN Rail Power Supply Active PFC
NDR Series

NDR-240 240W Industrial DIN Rail Power Supply 24V 10A / 48V 5A Active PFC

Active PFC Metal Enclosure PLC Cabinet
$33.05 - $34.00 MOQ: 1 pc
High Reliability EDR-120 120W Industrial DIN Rail Power Supply
EDR Series

EDR-120 120W Economic DIN Rail Power Supply 12V 10A / 24V 5A / 48V 2.5A

Slim Metal Case TS-35 Mounting CE Verified
$14.80 - $15.32 MOQ: 1 pc
Manufacturing & QA Excellence

Rigorous Testing Facilities Behind Every Power Supply

Yueqing Keldan Technology Co., Ltd. operates in-house SMT placement, optical inspection, wave soldering, and 100% full-load burn-in testing to guarantee zero-defect shipments.

SMT Mounter Equipment

SMT Pick-and-Place

High-precision surface mount assembly for precision SMD component placement.

Reflow Soldering Equipment

Reflow Soldering

Controlled multi-zone thermal curves guarantee void-free solder joint integrity.

AOI Optical Inspection

AOI Inspection

Automated optical inspection identifies bridge defects, misalignments, or cold joints.

Assembly Workshop

Precision Assembly

Standardized assembly workstations ensure robust housing, terminal, and harness fitting.

Calibration and Debugging

Calibration & Debugging

Precise output voltage regulation, ripple suppression, and protection circuitry tuning.

Full-load Aging Test Racks

100% Full-Load Burn-In

Continuous high-temperature burn-in screening effectively screens infant mortality faults.

Automated Aging Testing Systems

Aging Testing System

Centralized monitoring of voltage stability, current draw, and operating temperature.

Yueqing Keldan Production Facility

Onsite Verified Facility

TÜV Rheinland onsite-audited facility with 44 verified employees and 18+ years experience.

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