Direct Factory Technical Portal · Palembang & South Sumatra

OEM/ODM Metal Case Power Supply Manufacturers & Supplier in Palembang

Precision-engineered enclosed SMPS units engineered for harsh industrial riverfronts, CPO processing mills, coal rail logistics, and fluctuating electrical grids across South Sumatra.

Engineered Supply Portfolio

Standard & Custom Industrial Enclosed Power Supplies

Engineered with rugged aluminum/galvanized chassis, high dielectric isolation, and transient surge suppression for industrial automation, signage, and plant control networks.

High Efficiency AC to DC Power Supply S-150-15
Single Output Series
High Efficiency AC to DC Power Supply for S-150-15 LED Strips Single Output SMPS 15V 10A High Efficiency Switching Power Supply
150W Output 15V 10A >88% Efficiency
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Factory Price AC DC Switching Power Supply 145W S-145-12
Multi-Voltage Chassis
Factory Price AC DC Switching Power Supply Manufacturer of Power Supply 145W 12V/15V/18V/24V/36V/48V 12A SMPS S-145-12
145W Rating 12V @ 12A EMC Filtered
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220V AC to DC Switching Power Supply S-1500-24 1500W
Heavy Duty High Power
220V AC to DC Switching Power Supply Chinese Products S-1500-24 1500W 24V 62.5A High Efficiency SMPS CE Led Power Supply
1500W Output 24V 62.5A Forced Air Cooling
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Manufacturer of Power Supply 120W S-120-24
Enclosed Metal Case
Manufacturer of Power Supply 120W 12V/15V/18V/24V/36V/48V 5A SMPS S-120-24 AC DC Switching Power Supply
120W Modular 24V 5A Low Ripple <100mV
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SMPS S-120-48 Factory Price Chinese 48V 2.5A
Telecom & Control Line
SMPS S-120-48 Factory Price Chinese Manufacturer of Power Supply 120W 12V/15V/18V/24V/36V/48V 2.5A AC DC Switching Power Supply
120W Rail 48V 2.5A OVP / OLP Built-In
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S-145-48 Single Output Power Supply AC 110V 220V DC 48V 3A
Switchable Input Series
S-145-48 Single Output Power Supply AC 110V 220V DC 48V 3A Switching Power Supply
145W Constant 48V 3A 110V/220V Dual Switch
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200W 5V Constant Voltage Switching Power Supply S-200-5
High-Current TTL/Logic
200W 5V 10A 20A 30A 40A AC to DC Single Output Smps Switching Power Supply S-200-5 High Quality Constant Voltage Power Supply
200W High Amperage 5V up to 40A Thermal Shutdown
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WEHO S-150-24 150W 24V 6.5A Single Output Enclosed
Automation Standard
WEHO S-150-24 150W 24V 6.5A Single Output AC/DC Enclosed Switching Power Supply
150W Workhorse 24V 6.5A Industrial Convection
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Engineering Whitepaper: Palembang Focus

Power Conversion Architecture in South Sumatra’s Industrial Landscape

A technical assessment of electrical power supplies operating across the Musi River economic corridor, downstream palm processing, and automated logistics terminals.

Crude Palm Oil (CPO) Refineries & Fractionation Plants

Industrial processing zones in Gandus and Mariana require continuous 24V DC auxiliary power for hydraulic valve positioners, Coriolis mass flow meters, and PLC boiler control logic. Power supplies must endure relentless sulfuric vapor traces and high ambient heat near bleaching clay tanks without thermal throttling.

Coal Barge Terminals & Heavy Conveyor Logistics

Handling facilities along the Musi River experience significant mechanical vibrations, airborne coal dust, and lightning-induced voltage surges. Our enclosed metal chassis designs integrate double-sided SMT potting, conformal anti-abrasive coating, and 2kV surge immunity to eliminate downtime on coal loading arms.

Palembang Light Rail Transit (LRT) & Municipal Controls

Indonesia’s pioneering LRT system relies on 12V and 48V auxiliary systems for passenger information display boards, trackside signaling nodes, and automated fare gates. The high MTBF (>200,000 hours under MIL-HDBK-217F) ensures high reliability across tropical monsoon conditions.

Rubber Processing & Polymer Vulcanization Mills

Raw crumb rubber processing centers south of Palembang generate elevated ambient humidity combined with localized electrical spikes caused by cyclic mill motors. Our metal case SMPS units deliver sustained 110% overload margins before hiccup mode, safeguarding motor contactor coils.

Port of Boom Baru Container Terminal Operations

Automated crane monitoring, RFID container tagging portals, and perimeter high-definition security networks run on our 12V and 24V industrial enclosed power supplies. The aluminum casing delivers passive natural convection cooling even when enclosed in unventilated IP65 outdoor distribution boxes.

Agrochemical & Fertilizer Blending Enclosures

Fertilizer distribution hubs along the Trans-Sumatran corridor demand robust power supplies shielded from airborne nitrates and damp coastal breezes. Galvanized and cold-rolled treated housings provide corrosion barriers preventing creeping electrical shorts.

Engineering Directive for Tropical Humid Conditions

In Palembang, the relative atmospheric humidity averages 82% to 96% year-round. When engineering power topologies for local systems, Zhejiang Harlon Electronic applies high-grade vacuum varnish impregnation on all transformers, accompanied by silicone conformal coating across active component pads to prevent dendrite growth and dielectric arc-over.

Comprehensive Parametric Benchmark

Specification Matrix for Industrial Metal Case Series

Engineered to assist procurement engineers and electrical system designers in selecting suitable SMPS chassis configurations for regional installations.

Series Class Nominal Power Input Voltage Tolerance Cooling Architecture Ripple & Noise (Max) Dielectric Isolation (I/P-O/P) Palembang Field Application
LRS Ultra-Slim 35W – 350W 85–264 VAC Universal Passive Convection (1U Profile) < 100 mVp-p (12V) 3.0 kVAC / 1 min Factory PLC automation, LED signage, retail terminals
S-Standard Enclosed 60W – 500W 110V / 220V Selectable Convection / Internal Fan (>250W) < 120 mVp-p (24V) 1.5 kVAC / 1 min Conveyor control panels, CCTV power distribution racks
SE / SP High Output 350W – 3000W 180–264 VAC (Active PFC) Thermostatically Controlled DC Fan < 150 mVp-p (24V/48V) 3.0 kVAC / 1 min Central battery chargers, hydraulic actuators, electrolysis
NDR / MDR DIN Rail 20W – 480W 90–264 VAC Universal Natural Heat Dissipation (TS-35 Rail) < 80 mVp-p (24V) 3.0 kVAC / 1 min SCADA cabinets, electrical switchgear, pump stations
Waterproof CV/CC 60W – 400W 170–250 VAC Nominal Full Silicone Compound Potting (IP67) < 150 mVp-p (12V) 3.75 kVAC / 1 min River bridge illumination, outdoor perimeter surveillance
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Strategic Industrial Trajectory

Palembang 2025–2030: Power Conversion Trends & Challenges

Technological shifts reshaping industrial electronics procurement across South Sumatra's manufacturing corridors.

Grid Volatility & Harmonic Sags Mitigation

The PLN (Perusahaan Listrik Negara) transmission network across non-central Sumatra often exhibits voltage sags down to 175 VAC during peak industrial shifts. Modern OEM designs demand wide-input SMPS stages capable of operating seamlessly between 85 VAC and 264 VAC without derating down to full shutdown, eliminating unwanted control system resets.

Downstream Mineral & Agro-Industrial Modernization

Under Indonesian national industrial policies, Raw material exports from South Sumatra are transforming into downstream refined products (such as biodiesel and vulcanized rubber goods). Automated production plants require higher power densities within control enclosures, increasing demand for 30 mm ultra-slim profile power supplies like the LRS family.

Energy Conservation & Green Port Directives

With electrification expanding across the Musi riverfront docks and terminal facilities, idle power consumption is heavily audited. Our latest metal case series achieves no-load power consumption below 0.3W and conversion efficiencies peaking at 91.5%, significantly reducing parasitic electrical waste in multi-rack cabinet installations.

Enterprise Manufacturing Superiority

Precision Manufacturing Engineered for Global OEM/ODM Contracts

Founded in 2007 in Wenzhou, Zhejiang, China, Zhejiang Harlon Electronic Co., Ltd. operates a modern 10,000 m² production facility verified on-site by SGS. With over 18 years of direct export engineering experience, we support OEM brands, electrical contractors, and distribution partners across Indonesia and worldwide.

Our in-house capabilities encompass automatic SMT high-speed placement lines, automatic through-hole component insertion, computer-monitored dual-wave soldering, and 100% full-load elevated-temperature burn-in chambers. Every single power supply undergoes automated parameter verification before packaging.

Full Customization Scope (OEM/ODM)

From custom terminal block pinouts and conformal silicone coating to specialized output voltages (such as 36V, 48V, or dual rails) and bespoke metal chassis stamping, we offer rapid prototyping with sample delivery within 7 working days.

Harlon SMT Automatic Production Line
Automated Insertion Equipment
Full-Load Elevated Burn-In Aging Rack
Thermal Environmental Test Chamber
18+
Years OEM/ODM Experience
10,000 m²
SGS Audited Workshop
10+
Dedicated Production Lines
100%
Full Load Burn-in Testing
Procurement & Logistics Clarity

Frequently Asked Questions by Industrial Buyers in Palembang

Clear, direct answers regarding shipping routes, regulatory standards, customization minimums, and electrical protection.

How are wholesale shipments delivered to industrial plants in Palembang?
We handle export shipments on FOB, CIF, or DDP terms. Most Palembang-bound maritime containers transit via the primary trade route from Ningbo or Shanghai port directly to Jakarta (Tanjung Priok), followed by scheduled feeder vessels or bonded inter-island container freight directly into the Port of Boom Baru (Palembang). Air cargo options via Sultan Mahmud Badaruddin II International Airport (PLM) are available for urgent project spare parts.
How do your metal case power supplies resist tropical moisture and salt fog?
For equipment deployed near the Musi River or in coastal Sumatra zones, we provide conformal coating (Class 1B polyurethane or silicone) across all soldered PCBA surfaces. The outer casing features electro-galvanized cold-rolled steel and anodized aluminum with passivated screws to prevent galvanic corrosion and electrochemical migration.
What is the Minimum Order Quantity (MOQ) for custom OEM branding?
For standard catalog models with custom laser-engraved or silk-screened client logos and branded carton packaging, the MOQ begins at 200 units. For full electrical topology customizations (such as specialized output voltages or non-standard form factor casings), our engineering threshold starts at 500 units, backed by complimentary sample validation.
Can your units withstand typical voltage fluctuations in South Sumatra?
Yes. Our wide-range input topologies operate continuously across 85V to 264V AC. Additionally, integrated MOV (Metal Oxide Varistor) protection buffers incoming surges up to 2kV–4kV, shielding downstream microcontrollers, PLCs, and servo equipment from severe grid surges common during tropical thunderstorm activity.
What documentation is provided for Indonesian customs clearance and project tenders?
We provide full Form E (ASEAN-China Free Trade Agreement) documentation for preferential import tariffs into Indonesia, complete commercial invoices, packing lists, CE/RoHS test certificates, and ISO 9001 factory verification certificates issued by international accredited registrars.
Direct OEM/ODM Partnership

Equip Your Systems with High-Reliability Power Supplies

Whether you are modernizing a CPO extraction plant in Gandus, outfitting an automated logistics terminal on the Musi River, or manufacturing electrical control cabinets for the regional Indonesian market, our engineering sales team is ready to assist with custom quotes, datasheets, and sample evaluations.