TÜV Rheinland Onsite-Verified Manufacturer Yueqing, Zhejiang, China
Direct OEM/ODM Supply for German System Integrators & Control Cabinet Builders

Isolated DC DC Converter Factories & Supplier for Germany

Precision-engineered isolated DC-DC converters, industrial switching power supplies, and DIN rail solutions compliant with VDE, EN 61204, and CE directives for Industry 4.0 automation.

TÜV
Rheinland Onsite-Verified
18+
Years SMPS Engineering
44
On-Site Assembly Staff
100%
Full-Load Burn-In Tested

High-Reliability Power Supplies & Isolated Converters for Industrial Applications

Engineered for high galvanic isolation (3kVAC+), thermal endurance up to 70°C, and heavy EMC immunity for demanding German factory automation and electrical switchgear environments.

High Efficiency EDR-240-24 Industrial DIN Rail Power Supply 24V 10A 240W

EDR-240-24 Industrial DIN Rail Power Supply 24V 10A 240W Single Output AC-DC Switching Converter Slim Design 95% Efficiency

24V / 10A TS-35 Rail Slim Enclosure
Product Details
Ultra-Thin LEYU LRS-150-24 AC DC Switching Power Supply 150W 24V 6.5A

LEYU LRS-150-24 AC DC Switching Power Supply 150W 24V 6.5A Single Output SMPS for Industrial Equipment LED Lighting

150W Enclosed Low Profile 30mm 5G Vibration
Product Details
Class II Step HDR-100 100W DIN Rail Power Supply Universal Input

HDR-100 100W DIN Rail Power Supply 85-264VAC Universal Input 12V 24V 48V Industrial Switching Power Supply

Building Automation Class II Isolation Ultra Slim
Product Details
Multi-Rail T-30 30W Triple Output Switching Power Supply 5V 12V -5V -12V

T-30 30W Triple Output Switching Power Supply 5V 12V -5V / -12V AC to DC Converter for Test Equipment Automation

Triple Channel Test & Measurement Compact SMPS
Product Details
Active PFC LEYU EDR-240-24 DIN Rail Power Supply 24V 10A 240W Active PFC

LEYU EDR-240-24 DIN Rail Power Supply 24V 10A 240W AC DC Single Output Active PFC Industrial Automation

PF > 0.95 EN 61000-3-2 Cabinet DIN Rail
Product Details
Micro DIN Rail MDR-20 20W DIN Rail Switching Power Supply 12V 24V

MDR-20 20W DIN Rail Switching Power Supply 12V 1.67A 24V 1A AC DC Single Output for Industrial Automation

Compact 22.5mm Low Standby PLC / Sensor Supply
Product Details
IP67 Waterproof LDV-100 100W IP67 Waterproof LED Driver Power Supply

LDV-100 100W IP67 Waterproof LED Driver Power Supply 12V 8.3A 24V 4.2A AC to DC Adapter for Outdoor LED Strip Sign Lighting

Sealed Aluminum Outdoor IP67 Surge Immune
Product Details
High Power Variable ZSN3 1000W Programmable Variable DC Power Supply

ZSN3 1000W Programmable Variable DC Power Supply AC to DC 12V 24V 48V 110V 220V Adjustable SMPS for Laser Lab Use

1000W Adjustable Lab Calibration Over-Current Clamping
Product Details

Key Application Scenarios in Germany’s Industrial Ecosystem

From the industrial powerhouses of Baden-Württemberg and Bavaria to modern renewable grids in North Rhine-Westphalia, isolated DC-DC topologies solve critical ground-loop, electrical noise, and safety isolation challenges.

Schaltschrankbau & Control Cabinets

German panel builders (Schaltschrankbauer) require standard TS-35 DIN rail mounting with galvanic isolation between high-power servo feeds and sensitive 24V PLC/IO-Link master modules. Our isolated converters prevent transient inductive spikes from resetting Beckhoff, Siemens S7-1500, or WAGO controller architectures.

DIN EN 60715 TS-35 Compliant

Automotive AGVs & Intralogistics

In logistics centers and German automotive production lines (e.g., Stuttgart, Wolfsburg, Munich), Automated Guided Vehicles (AGVs) operate on 24V or 48V Li-ion traction batteries. Our isolated DC-DC converters bridge the fluctuating battery bus to stabilized 12V/24V telemetry, LiDAR, and safety PLCs with up to 3000VDC reinforced breakdown isolation.

EN 1175 & ISO 3691-4 Tolerant

Energiewende & Solar-BESS Storage

Germany’s massive shift to renewable energy necessitates robust DC microgrids. Our wide-input isolated converters serve commercial Battery Energy Storage Systems (BESS) and inverter control circuits, operating reliably through cold Alpine winters and harsh container temperature swings from -25°C to +70°C without thermal derating.

VDE-AR-N 4105 Compatible Control

Trends Shaping Isolated Power Conversion Demand in Germany

German engineering standards (DIN) and EU energy efficiency directives continue to set global benchmarks for power density, standby conservation, and electro-magnetic compatibility.

Wide Input Ranges (4:1 & Ultra-Wide)

To standardize inventory and simplify procurement, German equipment manufacturers increasingly favor 4:1 (9-36V, 18-75V) and ultra-wide DC inputs. This enables a single converter model to satisfy both 24V machine control circuits and 48V telecommunication or battery racks.

Decentralized DC Microgrids & SELV Safety

Energy-intensive German factories are shifting towards DC bus infrastructures (380VDC to 24/48VDC) to trim AC-DC conversion losses. Reliable galvanic isolation guarantees that the output qualifies as Safety Extra Low Voltage (SELV) under DIN EN 62368-1, shielding maintenance technicians from lethal voltages.

Rigid Electromagnetic Compatibility (EMC)

The proliferation of variable frequency drives (VFDs) and heavy switching inverters creates severe common-mode EMI in German factory cells. Isolated power modules must integrate dual-stage π-filtering and shielding to pass EN 55032 Class B without requiring bulky external suppression boards.

German / European Standard Technical Objective Keldan Manufacturing Implementation
DIN EN 62368-1 (Audio/Video, IT & Comm Tech) Hazard-based product safety & SELV barrier verification Triple-insulated winding wire, 3000VAC hipot barrier, creepage > 6.3mm
DIN EN 61000-6-2 / 61000-6-4 Heavy industrial immunity and radiated/conducted emission limits Internal multi-stage LC filters, nickel-plated shielded enclosures, TVS clamps
DIN EN 60715 Standardized rail mounting dimensions for control cabinets Standardized snap-on mounting feet for TS-35/7.5 and TS-35/15 steel rails
EU RoHS Directive 2011/65/EU & REACH Banning of hazardous materials (lead, cadmium, phthalates) 100% lead-free wave/reflow soldering, verifiable SGS material testing dossiers

Why German Mittelstand & Global OEMs Partner with Yueqing Keldan

In international sourcing, claims must be backed by documented manufacturing reality. As an onsite-verified custom manufacturer in Yueqing, Zhejiang, we combine complete process control with Western engineering accountability.

TÜV Rheinland Onsite Verification

Our production facilities, testing laboratories, quality control checkpoints, and financial capacity are comprehensively audited and certified onsite by TÜV Rheinland. We supply full inspection reports directly to your compliance and vendor management team.

In-House SMT, AOI & Wave Soldering

Unlike trading entities that repackage unverified assemblies, we operate automated pick-and-place lines, reflow ovens, and Automated Optical Inspection (AOI) stations. This eliminates pseudo-soldering and mechanical component displacement before final pot-casing.

100% Full-Load Burn-In Racks

Zero early-failure tolerance: every converter and industrial SMPS unit undergoes exhaustive high-temperature full-load aging tests on dedicated computerized racks. Units are cycled through dynamic step-loads to ensure rock-solid MTBF exceeding 300,000 hours.

Dedicated Engineering R&D (5+ Years Exp)

Our R&D team consists of electrical engineers with over 5 years of practical SMPS and DC-DC converter design experience. We handle circuit layout optimization, custom thermal heatsinking, potting materials, and bespoke voltage tuning within fast turnaround cycles.

Streamlined Logistics to Hamburg & Frankfurt

Our 12-person multilingual trade team handles DDP, CIF, and FOB documentation, customs clearance papers (CE, RoHS, Certificate of Origin), and express air shipments via Frankfurt/Leipzig hubs or rail freight via the New Silk Road directly into German hubs.

Real Production Environment & Quality Control Systems

Frequently Asked Questions by German Engineering & Sourcing Teams

Direct answers addressing technical qualification, regulatory compliance, logistics, and sample prototyping for German B2B buyers.

Can you provide verifiable CE Declarations of Conformity and RoHS dossiers for German customs?
Yes. All standard isolated converters and industrial DIN rail power supplies ship with formal CE Declarations of Conformity under the Low Voltage Directive (LVD 2014/35/EU) and Electromagnetic Compatibility Directive (EMC 2014/30/EU). Detailed RoHS test reports (IEC 62321 standards) and REACH statements prepared by accredited testing labs (such as SGS or TÜV) are supplied for vendor compliance dossiers.
What is the standard galvanic isolation rating between primary and secondary circuits?
Our industrial isolated DC-DC modules feature galvanic isolation levels of 1500VDC to 3000VAC depending on product family specifications. For AC-DC DIN rail units (e.g., EDR, HDR, NDR series), the primary-to-secondary isolation is rated at 3000VAC, with primary-to-chassis (earth) isolation rated at 1500VAC, preventing dangerous earth currents and high voltage line surges from damaging sensitive fieldbus interfaces.
What are the minimum order quantities (MOQ) and lead times for prototyping in Germany?
Standard DIN rail and enclosed models can be sampled starting from 1 piece for engineering evaluations and lab testing. Production batches for customized voltage rails or enclosures typically have a low threshold (e.g., 50–100 pieces). Prototype samples are dispatched via DHL/FedEx Express within 3–5 working days; standard batch production lead time ranges between 15 and 25 calendar days.
Do your converters support harsh temperature profiles and vibration resistance?
Yes. Units are specified for operation between -20°C (with optional -40°C start-up) and +70°C ambient temperatures. Internal components are silicon-potted or lacquer-conformal coated on automated lines to protect against humid continental environments and withstand 2G to 5G mechanical vibration tests in compliance with IEC 60068-2-6.
How do you support OEM/ODM customization for proprietary mechanical layouts?
We provide sample-based and schematic-based custom development. This includes tailoring non-standard DC inputs (such as 72V or 110V railway traction systems), adjusting current trip points, incorporating active OR-ing diodes for N+1 redundancy, private label branding, and custom PCB footprints designed to fit snug control enclosures.
Are your units drop-in compatible replacements for established European brand footprints?
Yes. Our DIN rail enclosures and terminal pinouts adhere strictly to standard dimensional forms (such as slim TS-35/7.5 DIN specifications and stepped distribution housings). This allows German integrators to directly replace aging modules or reduce procurement costs without re-engineering existing panel wiring looms.

Request Technical Datasheets & Prototype Samples

Connect directly with our senior power electronics engineers. Specify your input/output rails, isolation requirements, and target volume to receive customized pricing and CAD step models within 24 hours.

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