Designed to withstand regional power surges, tropical ambient heat, and 24/7 duty cycles. Shipped directly from our Xi'an manufacturing facility to Medan importers via Belawan Port.
High-efficiency switching architecture with wide AC input, overload hiccup protection, and extruded aluminum casing for thermal conduction.
Multi-tap precision regulation suitable for rugged field tablets, mobility battery packs, and high-wattage desktop replacement laptops.
Snaps into standard TS-35 rails. Engineered for control cabinets in Belawan port cranes, palm oil automated lines, and telemetric terminals.
Equipped with active cooling fans, dual potentiometers for output trimming, and double-sided glass epoxy PCB for heavy current loads.
High MTBF converter widely deployed in CCTV networks, multi-dock charging benches, and Medan enterprise server backplanes.
Compact euro-plug wall adapter tailored for routers, thin clients, and POS peripherals across commercial stalls and Medan supermarkets.
Potted in high-grade heat-conductive epoxy resin. Built specifically to survive monsoon rain, high humidity, and outdoor commercial signage.
Engineered with custom EMI filtering bobbins and high-grade primary capacitors to meet stringent EMC directives in medical and industrial boards.
Medan functions as the primary commercial and logistical gateway for Sumatra. Understanding where replacement and OEM power adapters operate allows our engineers to configure topologies that survive tough regional operating conditions.
The electronic distribution arteries centered around Jalan Merak Jingga and IT complexes like Plaza Medan Fair distribute tens of thousands of replacement power bricks monthly. Importers face aggressive price wars paired with high customer return rates caused by sub-standard clone chargers. Zelqo supplies wholesale distributors with premium, tier-1 component adapters (for Lenovo, Dell, HP, Asus, Acer, and Apple Type-C PD) featuring laser-etched barcodes, customized outer boxes, and authentic Tier-1 capacitors that prevent premature MOSFET breakdown.
Factories across KIM I, II, III, and Starban Industrial Areas employ laptop computers and rugged terminals for process monitoring, warehouse dispatching, and CNC diagnostic tasks. These enterprise devices run continuous charging cycles in non-air-conditioned shop floors exposed to dust and conductive particles. Our industrial-grade adapters incorporate UL94V-0 fire-rated polycarbonate casings, heavy rubber strain-relief collars, and pure copper 18AWG DC cables that resist physical abrasion and constant bending.
North Sumatra’s palm oil refineries (PKS), rubber mills, and Belawan container freight stations run dispatch offices directly adjacent to high-power industrial machinery. Heavy inductive loads generate severe voltage sags and line harmonics on the local PLN power lines. Standard laptop chargers burn out within months under these transient spikes. Zelqo integrates dual Metal Oxide Varistors (MOVs) and high-capacitance bulk filter capacitors (rated to 450V/105°C) to absorb voltage surges up to 2.5kV.
The equatorial climate of Medan presents continuous temperatures of 31°C–34°C with ambient humidity exceeding 85% RH. Standard catalog adapters fail due to dielectric breakdown and electrolytic dry-out. Here is how Zelqo re-engineers power adapters for North Sumatra.
| Engineering Parameter | Generic Chinese Exporters | Shaanxi Zelqo Power (Medan Spec) | Operational Impact in Medan |
|---|---|---|---|
| AC Input Voltage Range | 180V – 240V AC (Narrow band) | 90V – 264V AC (Full Universal Range) | Survives sudden PLN brownouts and sub-station line drops during peak industrial hours without resetting laptop batteries. |
| Primary Filter Capacitor | 85°C rated generic brands (400V) | 105°C Long-Life Rubycon / Aowei (450V) | Prevents electrolyte drying and swelling in Medan's year-round ambient heat, extending operational life past 50,000 hours. |
| Surge & Transient Protection | None or bare 500V single varistor | Dual MOV array + NTC Inrush Limiter (2.5kV) | Dampens lightning strike inductive surges and sudden generator back-EMF prevalent in Deli Serdang rural plantations. |
| PCB Insulation & Moisture Barrier | Bare FR-2 or single-sided phenolic | FR-4 Double-Sided + Conformal Coating | Stops dendritic silver migration and salt-mist short circuits originating from Belawan coastal air. |
| Creepage & Clearance Distance | < 4.0mm (Fails safety margins) | > 6.5mm Primary-to-Secondary Isolation | Guarantees complete user safety and passes 3,750V AC hi-pot dielectric tests without flashover. |
| DC Cable & Connector Build | Thin 22AWG copper-clad aluminum | Pure Tinned Copper 18AWG / 20AWG with SR Boot | Eliminates DC voltage drop under high amperage, keeping connector tips cool even at 65W/100W maximum continuous charging. |
For executive laptop fleets, corporate banking offices in Jalan Balai Kota, and high-end consumers, we manufacture Gallium Nitride (GaN III) chargers from 65W to 140W. GaN components run cooler, switch faster, and cut brick size by 45%, offering travelers in Kualanamu International Airport an ultra-portable solution with dual USB-C and USB-A charging ports.
Navigating Indonesian customs (Direktorat Jenderal Bea dan Cukai) requires immaculate documentation. Zelqo provides certified test reports conforming to IEC 62368-1, CE, RoHS, and FCC directives. We assist wholesale partners in organizing technical test files needed for SNI (Standar Nasional Indonesia) and SDPPI clearance, eliminating container holding penalties at Belawan Port.
As a verified Chinese direct exporter, Shaanxi Zelqo Power generates original Certificates of Origin under the ASEAN–China Free Trade Agreement (ACFTA Form E). This certificate allows licensed Indonesian importers in Medan to benefit from preferential tariff rates—slashing import duties on AC-DC power adapters down to 0% to 5%.
Headquartered in Xi'an, China, Zelqo operates an Intertek on-site verified production facility. Rather than rebranding low-cost trading stock, our electrical engineers control magnetic winding, PCB assembly, potting, and automated testing from start to finish.
We wind our own high-frequency ferrite core transformers on high-speed multi-axis CNC machines, ensuring tight inter-turn coupling, minimized leakage inductance, and exact secondary turns for stable output voltage regulation.
Every batch of laptop power adapters and SMPS power units undergoes a minimum of 4 hours at 100% continuous rated load inside automated 45°C burn-in chambers to eliminate early component failures prior to export packing.
Our QC stations leverage LCR digital bridge testers, impulse winding analyzers, digital power meters, and 5,000V programmable hi-pot testers to guarantee zero dielectric breakdown and full compliance with DOE Level VI efficiency standards.
We supply Medan wholesalers with customized mold enclosures, customized cable lengths (1.2m, 1.5m, 1.8m, 2.0m), interchangeable DC barrel tips (Type-C, 4.5x3.0mm, 7.4x5.0mm, yellow square tip), and private silk-screened brand logos.
Direct, transparent answers regarding logistics, import documentation, warranty, and technical parameters for corporate purchasers in North Sumatra.
Direct container vessels departing from major Chinese ports (such as Shenzhen, Guangzhou, Ningbo, or Qingdao) take approximately 12 to 16 days to berth at Pelabuhan Belawan (Medan). For urgent sample batches or high-priority warranty replacements, air cargo via Kualanamu International Airport (KNO) can be cleared within 3 to 5 business days.
Our laptop power adapters feature a broad input window of 90V to 264V AC with a switching frequency of 65kHz–100kHz. Even if industrial power swings cause voltage dips down to 110V or surges up to 250V, our integrated PWM IC immediately modulates pulse width to maintain a continuous, rock-steady 19V, 19.5V, or 20V DC output without interrupting device charging or generating heat spikes.
Yes. We supply 2-pin European Type C (CEE 7/16) and grounded Type F / Type G plugs natively compatible with Indonesian household and office wall sockets. For DC output jacks, we support all major laptop architectures: Type-C Power Delivery, 4.5*3.0mm (HP/Dell with center ID pin), 5.5*2.5mm (Universal/Asus), 7.4*5.0mm, and Lenovo rectangular tips with customized internal signal resistors.
For standard models in black housings with neutral packaging, our minimum trial order starts at just 200 to 500 units. For fully customized private labeling—including your brand logo laser-etched on the casing, customized retail blister packaging, and Indonesian user manuals—the MOQ is typically 1,000 units per specification.
All Zelqo commercial power supplies and laptop adapters carry a standard 24-month replacement warranty. Because our factory field failure rate remains strictly under 0.15%, we back wholesale shipments with a 1% free-of-charge spare parts allowance packed directly into the shipping container, eliminating cross-border return logistics for your Medan customer service center.
Absolutely. Shaanxi Zelqo Power Co., Ltd. issues official ASEAN-China Free Trade Certificate of Origin (Form E) documents alongside each bill of lading. This permits registered Medan businesses holding an NIB (Nomor Induk Berusaha) to clear shipments through Bea Cukai at preferential zero-tariff or deeply discounted tariff classifications.