DC transformer

Overview

DC transformers (DC power supplies) with stable 24VDC output.

  • AC to DC conversion for control circuits in electrical enclosures.
  • Stable output, low ripple.
  • Models from 2A to 20A.

Key advantages

  • Planar Magnetic Design – High‑frequency planar cores deliver compact size, low leakage inductance, and high power density.

  • Wide‑Range Resonant Conversion – Maintains >94% efficiency across load ranges with reduced switching losses.

  • Optimized Thermal Path – DBC substrates and thermal potting ensure even heat dissipation.

  • Adaptive Regulation – Digital control adjusts duty cycle and frequency for varying loads.

  • Harsh‑Environment Durability – Nano‑coatings and rugged assembly exceed IP68 protection.

  • Ultra‑Low Ripple Output – Ripple <10 mV p‑p for sensitive RF, medical, and measurement gear.

  • Modular Architecture – Supports multi‑output and hybrid DC bus configurations.

Models & specifications

DZD DC voltage transformer

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at Model B max D max E max A Dimension mm
48 Kiva 04/08/2025 02:50 AM Kiva 04/08/2025 02:50 AM DZD-2A 78 72 100 56 46
53 Kiva 04/08/2025 02:54 AM Kiva 04/08/2025 02:54 AM DZD-5A 96 93 133 84 73.5
54 Kiva 04/08/2025 02:54 AM Kiva 04/08/2025 02:54 AM DZD-10A 120 100 168 90 85
55 Kiva 04/08/2025 02:54 AM Kiva 04/08/2025 02:54 AM JSZ-20A 180 97 225 136 56

All 2 model pages

Applications

  • Renewable Energy Systems – Step up or down DC voltage from solar panels or wind turbines to match battery banks or inverter input requirements.

  • Telecommunications Equipment – Regulate and isolate DC power for base stations, network switches, and remote communication modules.

  • Electric Vehicle Charging Stations – Convert high-voltage DC from charging infrastructure to controlled lower-voltage DC for onboard battery management systems.

  • Industrial Automation & Control Panels – Provide stable DC voltages for PLCs, sensors, and servo drives in manufacturing environments.

  • LED Lighting Systems – Step down higher DC bus voltages to safe low-voltage DC for LED arrays in commercial and industrial lighting applications.

  • Battery Charging Systems – Adapt DC output from solar or generator sources to match charging profiles for lead-acid, lithium-ion, or other battery chemistries.

  • Marine & Offshore Power Systems – Isolate and convert DC power for navigation electronics, lighting, and onboard automation in harsh saltwater environments.

  • Railway & Transportation Infrastructure – Provide regulated DC for signaling systems, train lighting, and auxiliary loads from traction power DC buses.

  • Medical & Laboratory Equipment – Deliver ultra-clean, stable DC power to sensitive diagnostic instruments and control systems.

  • Off-Grid & Backup Power Systems – Manage DC voltage between energy storage units, solar generators, and inverter systems for uninterrupted power supply.

Basic knowledge

  • Isolation for Safety – Isolated designs prevent ground loops and protect sensitive electronics.

  • Thermal Management – Proper derating, heatsinking, and airflow prevent overheating in enclosed panels.

  • Ripple Control – High‑quality units minimize input ripple to protect batteries and reduce output noise for precision electronics.

  • Environmental Hardening – IP67/IP68 housings, salt‑mist coatings, and resin encapsulation ensure performance in harsh environments.

  • Efficiency Curve Reality – Choose models with flat efficiency across the load range, not just peak efficiency at mid‑load.

Frequently asked questions

When should I use a 48 V to 12 V DC step‑down transformer?

When powering 12 V devices such as LED lighting, control panels, or radios from a 48 V battery or telecom system, ensuring safe and efficient operation.

Why choose a high‑efficiency DC step‑up transformer?

It maximizes energy transfer from low‑voltage DC sources to higher DC levels while minimizing heat loss—ideal for solar, EV, and industrial automation.

How does isolation improve DC transformer performance?

Galvanic isolation prevents ground loops, reduces electrical noise, and protects sensitive electronics from voltage spikes and surges.

How is a DC voltage transformer used with solar panels?

It adjusts PV array output to match battery charging requirements or inverter input voltage, boosting efficiency and storage capacity.

Why choose a waterproof DC transformer for outdoor projects?

IP67/IP68‑rated designs resist moisture, dust, and corrosion, ensuring stable long‑term performance in marine, roadside, and remote installations.

Product inquiry

Selection & support

Selecting a LEIPOLE 24 V DC power supply

Match the output current to the DC loads of the control circuit.

Which 24 V DC power supplies does LEIPOLE supply for control panels?

The LEIPOLE DZD and JSZ DC transformers convert an AC supply to a stable 24 V DC for PLCs, sensors, relays and DC fans in electrical enclosures. Four models cover 2 to 20 A: DZD-2A, DZD-5A, DZD-10A and JSZ-20A, and the JSZ-20 takes a three-phase input. The model table gives the mounting dimensions of each.

Check technical documents

How do I choose the current rating of a 24 V DC power supply?

Add the current of every 24 V DC load, such as the PLC, its inputs and outputs, sensors, relay coils and DC fans, and choose the next rating up with a margin for start-up currents, for example 5 A for a 3.5 A load. Send the input supply and total load to the Singapore team to confirm the model.

Confirm the model