SCP-35 Series
Export Catalog · Netherlands Direct
Engineered Industrial Power Conversion & Backup Solutions
Field-proven DIN rail units, uninterrupted DC-UPS systems, programmable supplies, and compact switching converters compliant with European electromagnetic and low-voltage directives.
Variable Lab SMPS
Fuente De Alimentacion Variable 1000W AC DC 24V 41.7A Adjustable Power Source for Laser Lab Use
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Industrial DIN Rail
120W Industrial DIN Rail Power Supply 24V 5A AC DC Converter for PLC Control Cabinet Automation Equipment
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HDR-100 Step Shape
HDR-100 100W DIN Rail Power Supply 85-264VAC Universal Input 12V 24V 48V Industrial Switching Power Supply
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Compact DIN Series
30W Industrial DIN Rail Power Supply 24V 1.5A AC DC Converter for PLC Control Cabinet & Building Automation
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High Power SV-3000
SV-3000 3KW Industrial Variable Power Supply 120A 60A for Electroplating Electrolysis & Laser Equipment AC 220V Input
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ZSN3 Digital Series
ZSN3 1000W Programmable Variable DC Power Supply AC to DC 12V 24V 48V 110V 220V Adjustable SMPS for Laser Lab Use
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LRS Enclosed Line
LEYU LRS-150-24 AC DC Switching Power Supply 150W 24V 6.5A Single Output SMPS for Industrial Equipment LED Lighting
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Years SMPS & Inverter R&D
TÜV
Rheinland Onsite Verified
44+
Onsite Specialists & Engineers
100%
Full-Load Burn-In Tested
Market Dynamics & Architecture
Localized Applications Across The Hague (Den Haag) & South Holland
The Hague functions not only as the political heart of the Netherlands and international seat of justice, but also as a pivotal node in the Randstad metropolitan conurbation. Power integrity in this region demands uncompromising continuity, stringent harmonic control, and zero switchover latency.
Industrial electrification within the municipality of The Hague and its adjacent economic centers—extending north toward Leiden's life-science cluster and south to the automated maritime container corridors of Rotterdam-The Hague Metropolitan Area (MRDH)—operates within highly congested European grids. Grid fluctuations, micro-outages caused by maritime switching surges, and high harmonic distortions pose severe risks to computerized infrastructure. Yueqing Keldan Technology Co., Ltd. configures and exports uninterrupted power conversion gear directly calibrated to Dutch electrical topology.
Governmental & Judicial IT Buffering
The Hague accommodates extensive international diplomatic missions, European legal tribunals, and municipal security systems. Our SCP-35 Mini DC-UPS modules provide seamless 13.8V and 27.6V switchover with dedicated lead-acid or lithium battery float maintenance, isolating surveillance topologies, VoIP communications, and border gate controls against grid sags without dropping data packet streams.
Automated Horticultural & Food Logistics
In the adjacent Westland greenhouse belt—the largest glasshouse horticulture hub in Europe—climate computing engines, dosing pump PLCs, and automated sorting gantries demand uninterrupted 24V DC. Our HDR-100 and industrial DIN rail supplies (NDR/EDR series) operate within sealed IP65 control enclosures, withstanding the high ambient humidity and temperature swings common to automated agrarian architecture.
Telecommunications & Coastal Sensors
Coastal telemetry along Scheveningen beach, water management pump stations run by Hoogheemraadschap van Delfland, and municipal 5G microcells require robust power conversion with wide AC input ranges (85–264 VAC). Our DIN rail and variable power converters feature conformal coating options, protecting active electronics from North Sea salt spray and seasonal condensation.
Regional Foresight
Energy Transition & Power Stability Trends in the Netherlands
The Netherlands' aggressive transition toward distributed offshore wind generation and rooftop photovoltaics has introduced unprecedented challenges to regional grid balance across TenneT and Stedin networks.
In South Holland, grid operators face severe capacity constraints (netcongestie). Consequently, engineering procurement across The Hague increasingly mandates on-premises micro-buffering. Industrial facilities cannot rely on unconditioned utility mains to power sensitive sensor tiers, variable frequency drives, or laboratory equipment. Keldan's engineering pipeline directly mirrors these European structural shifts:
Active Power Factor Correction
Under European EN 61000-3-2 guidelines, harmonic feedback into the utility network is rigorously penalized. Our active PFC architectures achieve power factors >0.95, maximizing real power delivery and eliminating reactive current penalties in high-density installations.
Transition to DC Micro-Grids
Dutch warehouse automation and commercial rooftops are pioneering direct DC architectures to bypass repeated inversion losses. Keldan's wide-range DC-DC converters and hybrid inverters enable seamless direct coupling between solar strings, battery packs, and 24V control buses.
Zero-Transfer Latency Requirements
Traditional mechanical relay switchovers (10–20ms) frequently trip modern PLC processors and machine-vision cameras. Our specialized DC-UPS topologies operate on solid-state buffering circuits, offering zero millisecond dropouts during grid disconnection.
Ultra-Compact Footprint Optimization
Real estate in cabinet racks inside municipal server rooms and maritime bridge consoles carries high overhead costs. Keldan's high-frequency planar switching topologies allow engineers to pack up to 480W on standard TS-35 rails within widths under 85mm.
Engineering Guide
Power Topology Selection Matrix for South Holland Systems
A reference architecture to support system integrators and panel builders in specifying the correct conversion topology based on mechanical and electrical parameters.
| System Architecture | Recommended Model / Line | Primary Voltage Profile | Key Protection & Features | Typical The Hague Application |
|---|---|---|---|---|
| Uninterrupted DC-UPS | SCP-35 Series | Input: 100-240VAC Output: 13.8V / 27.6V DC |
Zero-switch latency, integrated battery charging, reverse polarity cutout | Critical security cameras, access control turnstiles, telemetry nodes |
| Industrial TS-35 Automation | 120W DIN Rail (24V 5A) | Input: 85-264VAC Output: 24V DC regulated |
Short-circuit, over-voltage, thermal derating curve to 70°C | PLC control panels, process automation in Westland agro-tech facilities |
| Step-Shape Building Control | HDR-100 Low-Profile | Input: 85-264VAC Output: 12V, 24V, 48V DC |
Class II isolation, no ground pin needed, compact step shape for breaker panels | Smart municipal lighting systems, HVAC damper actuators, sub-distribution |
| Precision Variable DC | ZSN3 1000W / Fuente 1000W | Input: 110V/220VAC Output: 0-24V up to 220V Adj. |
Constant Current (CC) / Constant Voltage (CV), 0.01V low ripple digital readout | University labs in Delft/Leiden, electro-optical testing, laser alignment bench |
| High-Current Industrial Bench | SV-3000 3KW Module | Input: AC 220V Output: 0-30V / 60A / 120A |
Forced air cooling, heavy-duty internal snubbers, over-temperature auto-shutdown | Maritime galvanic anti-corrosion testing, hydrogen electrolysis rigs, electroplating |
| Flat-Mount Enclosed Chassis | LEYU LRS-150-24 | Input: Selectable 115/230VAC Output: 24V 6.5A Single |
1U low profile (30mm), withstands 5G vibration test, solid-state economy | Internal 3D printing equipment, digital signage in central transit terminals |
Manufacturing Excellence
Why The Hague Procurement Teams Partner with Yueqing Keldan
Direct manufacturing transparency, verified engineering standards, and robust supply chain integrity eliminate the middleman and guarantee compliance with CE, RoHS, and Low Voltage Directives.
TÜV Rheinland Onsite Verified
Yueqing Keldan Technology Co., Ltd. operates from Beibaixiang, Yueqing, Zhejiang—China's capital of low-voltage electronics. Our entire production facility, manufacturing lines, and trade capabilities are independently audited and certified onsite by TÜV Rheinland, ensuring full accountability from silicon placement to international customs paperwork.
100% 8-Step Full-Load Burn-In
Unlike trading houses that rely on spot-checking, every power supply shipped to Europe undergoes incoming component validation, automated SMT placement, high-precision reflow soldering, automated optical inspection (AOI), manual calibration, and 100% aging burn-in under maximum thermal and load stresses to eliminate latent early-life failures.
Flexible OEM/ODM & Direct Export
Backed by our dedicated 12-person international trade department and veteran R&D engineers (each possessing 5+ years of SMPS specialization), we support design-based voltage tweaking, customized wiring terminals, private label badging, and rapid delivery via Rotterdam port or air cargo to Amsterdam Schiphol.
Procurement & Technical Clarifications
Frequently Asked Questions by Dutch Buyers & Engineers
Clear, direct answers regarding compliance, lead times, customization, and warranty terms for businesses operating in The Hague and the wider Benelux territory.
Do your power supplies and DC-UPS units comply with European Low Voltage and EMC Directives?
Yes. All standard Keldan industrial DIN rail units, enclosed switching supplies, and inverters carry the CE marking and meet relevant EN 55032 (CISPR32) Class B emission standards, EN 61000-4 immunity profiles, and the EU Low Voltage Directive 2014/35/EU. Test reports, certificates of conformity, and RoHS material declarations can be supplied to your engineering or compliance team ahead of commercial container shipping.
How does the SCP-35 Mini UPS system manage the switchover during an unexpected grid failure?
The SCP-35 utilizes an integrated dual-loop circuit topology. While AC utility power is present, the unit delivers stable regulated DC voltage to the connected device (such as a router, CCTV camera, or controller) while simultaneously maintaining a floating trickle charge to an external 12V or 24V battery pack. Upon main AC dropout, solid-state Schottky diode switching immediately engages the battery circuit with zero millisecond transfer latency, ensuring uncorrupted continuity for sensitive computing nodes. When main AC power restores, the battery automatically switches back into trickle charging mode.
What are the minimum order quantities (MOQ) and freight options for shipments to The Hague?
To support system verification and prototyping, standard DIN rail, LRS, and variable power supplies have a sample MOQ of just 1 piece. Standard carton and palletized production runs typically start at 10 to 50 pieces depending on the casing class. For sea freight, consignments are consolidated directly for Port of Rotterdam (approx. 25–28 days transit), located less than 30 kilometers south of The Hague. For urgent project integration, express air freight via DHL/FedEx reaches Schiphol Airport within 4–7 business days.
Can Keldan develop customized DC output voltages or conformal coating for harsh maritime environments?
Yes. Our in-house engineering team provides complete OEM and ODM customization. Because The Hague borders the coastal North Sea region, we frequently apply high-grade polyurethane or silicone conformal coatings to PCB assemblies, preventing corrosion across copper traces caused by salt mist and atmospheric humidity. We also provide bespoke voltage trimming (such as 36V, 48V, or specialized floating battery setpoints) and custom laser-engraved corporate branding on all aluminum or plastic housings.
How does Keldan compare to domestic European power supply brands on price and longevity?
By procuring directly from our certified manufacturing facility in Yueqing, European buyers eliminate tier-1 distribution markups, achieving between 25% and 40% direct procurement cost reductions. Because we utilize premium long-life electrolytic capacitors rated at 105°C and carry out full thermal aging on 100% of finished assemblies, our field failure rates remain well below 0.2%, matching or exceeding tier-1 European industrial catalog standards over an expected operational MTBF exceeding 100,000 hours.
Engineering a Backup Power System in The Hague?
Connect immediately with our technical engineering sales desk. We provide comprehensive electrical datasheets, CAD dimensional drawings, sample evaluations, and factory-direct volume quotations tailored to your European delivery timeline.
