Tested under rigorous 100% full-load aging and hi-pot dielectric conditions, our power adapter and SMPS series deliver uninterrupted direct current to industrial telemetry, telecom backhauls, medical equipment, and consumer IoT architectures across Bulgaria.
Heavy-duty aluminum vented casing, multiple terminal blocks, supporting 1A through 10A configurations with thermal shutdown.
Precision regulated 12V/5A, 24V/3A, and 36V adjustable rails. Low electrical ripple optimized for automation logic.
Designed for smart hubs, industrial gateways, and clocks. Low standby dissipation (<0.075W) meeting Class VI standards.
Compact white wall plug power supply. Universal 100–240VAC nominal input, CE, FCC, over-voltage and short-circuit isolation.
Rugged desktop unit supporting 5.5*2.1mm and 5.5*2.5mm tuning. Excellent thermal dissipation for industrial continuous duty.
High-density miniature wall-mount charger adapter with CE, FCC, RoHS certifications. Ultra-low ripple, flame-retardant PC housing.
Configurable voltage steps (5V, 9V, 12V, 15V, 18V, 19V) handling 500mA to 3A ratings. Ideal for engineering field service in Bulgaria.
Constant Current / Constant Voltage (CC/CV) smart charging profile designed for electric scooters, e-bikes, and light industrial mobile platforms.
Sourcing external AC-DC power adapters and embedded switching mode power supplies for installation within the Republic of Bulgaria requires a deep technical comprehension of both the localized grid conditions and the mandatory regulatory architecture of the European Union. Bulgaria operates on a nominal 230V single-phase / 400V three-phase grid at a 50Hz frequency, governed under CENELEC standard EN 50160. However, regional manufacturing clusters—ranging from the fast-expanding Trakia Economic Zone (TEZ) around Plovdiv to heavy metallurgical installations near Pernik and maritime logistics hubs in Varna and Burgas—frequently encounter industrial grid transients, voltage sags, and harmonic distortions.
Shaanxi Zelqo Power Co., Ltd. architects power supplies specifically tailored to mitigate these environmental challenges. By implementing an ultra-wide universal input range of 85 VAC to 264 VAC (47–63Hz), alongside active Power Factor Correction (PFC) circuitry yielding cos φ > 0.95 on units rated above 75W, our power adapters guarantee seamless operation across Bulgarian municipal networks and rural substations alike.
Imported electrical apparatuses must strictly comply with Bulgarian state standards (BDS - Български Държавен Стандарт) harmonized with EU norms:
From Sofia’s thriving tech startups and research corridors to high-volume manufacturing lines along the Maritsa highway, Zelqo Power adapters serve specialized system architectures.
Sofia Tech Park and the capital’s burgeoning IoT design scene require highly reliable 5V and 12V low-noise DC adapters for LoRaWAN gateways, smart metering concentrates, and edge server nodes. Low conducted and radiated electromagnetic interference (EMI Class B) ensures radio transceiver modules maintain pristine packet delivery rates without RF signal degradation.
In the Trakia Economic Zone, manufacturers of automotive wiring harnesses, industrial robotics, and pneumatic sub-assemblies utilize our enclosed switching power supplies (100W–1500W) and heavy-duty 24V desktop adapters. These power supplies feature dual-stage output LC filters that suppress motor inductive kickback and voltage spikes common in factory floor automation.
With Sofia, Varna, and Burgas adopting urban micromobility initiatives, commercial delivery e-bikes and urban rental scooter fleets require resilient 48V 2A battery chargers. Outfitted with precision Constant Current / Constant Voltage (CC/CV) control curves and dual-color LED status management, our units ensure battery longevity and short-circuit protection under rough handling.
Procurement teams, hardware engineers, and contract manufacturers across Bulgaria are pivoting their supplier selection criteria based on three foundational macro-market realities.
Bulgarian electronics assemblers (EMS) are increasingly serving Western European automotive and medical clients who require rapid design turnarounds. Buyers are shifting away from rigid multi-container MOQs toward agile OEM/ODM suppliers capable of delivering fast prototype iterations (sample winding in 5–7 days) followed by reliable scheduled export shipments directly to Sofia or Plovdiv warehouses.
With escalating energy costs in the Balkan region, industrial and commercial tenders across Bulgaria now enforce strict adherence to EU Regulation 2019/1782 (Ecodesign). Adapters exhibiting high no-load losses are disqualified from modern tenders. Buyers specifically demand documented average active efficiency calculations across 25%, 50%, 75%, and 100% load test benchmarks.
Standard off-the-shelf power packs often fail in rugged Balkan winter conditions or high-vibration applications. Bulgarian procurement engineers now insist on cold-resistant PVC/TPE cabling jackets, customized barrel connector dimensions (such as screw-locking DC tips, aviation jacks, or USB Type-C Power Delivery), and conformal coating or potting for harsh outdoor signage and charging stations.
Operating out of Xi'an, China, Shaanxi Zelqo Power Co., Ltd. combines deep magnetic engineering expertise with full-spectrum internal manufacturing, independently verified on-site by Intertek.
Unlike simple traders, our engineers calculate core saturation, copper wire gauge, bobbin selection, and shielding in-house, tailoring every power adapter topology to your exact circuit parameters.
From automated CNC winding machines and circular toroidal coilers to terminal crimping and tape insulation wrapping, our physical workshops maintain rigid repeatability across every batch.
Our production facilities, trade capacities, and quality control systems are audited on-site by Intertek, giving Bulgarian importers absolute clarity, transparency, and audit-ready traceability.
Full private labeling, OEM brand embossing, custom DC connectors (5.5x2.1, 5.5x2.5, mini-DIN), regional AC cables (Europlug Schuko CEE 7/4), and retail-ready packaging designed for European distribution.
Everything you need to know about delivery terms, European customs clearance, certifications, and technical customizations.
Yes. All Zelqo Power adapters exported to Bulgaria are designed and verified to meet European directives: CE Marking (LVD 2014/35/EU and EMC 2014/30/EU), RoHS 2.0 (EU 2015/863) restricting hazardous chemicals, and Ecodesign ErP (EU 2019/1782) for active efficiency and standby power. Detailed Declaration of Conformity (DoC) and test reports are provided with commercial documentation.
We supply native Type C (Europlug, CEE 7/16) for Class II ungrounded double-insulated wall adapters and Type F (Schuko, CEE 7/4) with dual side earthing clips for Class I grounded adapters. For desktop adapters, we offer standard detachable IEC 60320 C7 (figure-8), C13, or C5 cloverleaf power cords molded to durable European Schuko plugs.
We offer flexible Incoterms including FOB (Shenzhen/Shanghai/Qingdao), CIF (Varna or Burgas ports), and DAP/DDP directly to your manufacturing site in Bulgaria. For urgent sample iterations or high-value pilot batches, we dispatch via air express (DHL/FedEx/UPS) reaching Sofia within 4 to 7 business days, accompanied by accurate HS Code classification (typically 8504.40) to streamline customs release.
Absolutely. We regularly engineer custom output voltages (e.g., non-standard 7.5V, 13.8V, 28V, or 54V rails) and fit specialized terminal connections including right-angle barrel plugs, screw-terminal adapters, waterproof IP67 connectors, or industrial Molex/Hirose terminations according to your Bill of Materials (BOM).
Whether you require standard 5W–15W wall adapters for IoT deployments or custom 1000W+ switching power supplies for heavy automated equipment in Bulgaria, our engineering team in Xi'an is ready to review your electrical specifications and deliver certified evaluation samples.