China Top Multiple Output Power Supply Factory & Supplier for Johor Bahru Market

Our power supplies are rated for operation in ambient temperatures from -20°C up to +70°C (with appropriate derating curves beyond 50°C). We use premium 105°C-rated long-life Japanese/Taiwanese electrolytic capacitors, thermal conductive silicone potting where necessary, and heavy-gauge aluminum enclosures that facilitate natural convection dissipation. For marine-adjacent installations in Pasir Gudang or Tanjung Langsat, we provide secondary conformal coating to safeguard PCB traces against moisture ingress, fungus, and salt-mist corrosion.

Yes. Yueqing Keldan Technology specializes in OEM/ODM design-based and sample-based customizations. Our R&D team can customize isolated secondary windings to deliver precise multiple output voltage configurations, isolated grounds to eliminate noise loops, and customized auxiliary rails for communication modules (RS485, CAN bus, or Ethernet). Project-specific engineering samples are typically completed within 7 to 14 business days.

For standard catalog items, we maintain baseline inventory allowing dispatch within 3–5 working days. Ocean freight from Ningbo or Shanghai port directly to Pasir Gudang Port or Port Klang typically takes 7 to 10 days on water. For urgent engineering prototypes or replacement stock, direct express air freight to Senai International Airport (JHB) or Singapore Changi (SIN) takes 3 to 5 days. We furnish full Form E certificates for preferential tariff treatment under ACFTA (ASEAN-China Free Trade Area), significantly lowering your import duties.

Our power conversion products conform strictly to international CE directives (Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU), as well as safety standards IEC/EN 62368-1 and EN 61558-1/2-16. For component power supplies mounted inside enclosed industrial machinery, CE declarations and comprehensive third-party lab test reports fulfill regulatory machine-directive declarations in Malaysia. When specific end-equipment SIRIM approvals are required by Malaysian utility authorities, we support your certification team with schematics, PCB layouts, and transformer insulation certificates.

To assist panel builders, system integrators, and engineering firms in Johor with new equipment prototyping, our standard DIN rail and open-frame switching supplies can be sampled from as low as 1 piece. Production batch MOQs typically start between 10 to 50 units for standard models, while custom OEM enclosure runs begin at 100 units. We accept flexible international payment methods including Telegraphic Transfer (T/T), Letter of Credit (L/C) for project orders, and escrow services.

On conventional multi-channel power supplies, fluctuating loads on the primary rail can cause severe voltage sagging or spikes on the auxiliary secondary rails. Keldan mitigates this issue by employing coupled inductors, independent post-linear or DC-DC step-down regulation on secondary outputs, and tight transformer coupling design. This ensures that even if your 24VDC motor rail swings from 10% to 100% capacity, your 5VDC or 12VDC communication and sensor rails remain perfectly rock-solid within ±2% regulation tolerance.