Essential Isolated & Regulated Power Conversion Modules
Proven topologies running across telecom networks, off-grid battery arrays, and industrial equipment under extreme voltage fluctuations.
18–75V to 24V 5A Isolated Power Supply
- TopologyGalvanic Isolation
- Input Range18–36V / 36–75V DC
- Output Rated24V DC @ 5A (120W)
- EnclosureIP67 Die-Cast Aluminum
18–90V to 12V 10A Ultra-Wide Isolated Module
- Input Voltage18–90V Continuous
- Output Power12V DC @ 10A (120W)
- Isolation Rating1500V DC Break-Break
- ProtectionOCP, OVP, OTP, Short
36–75V to 12V 10A Isolated Converter
- ApplicationTelecom Racks & AGM Banks
- Input Margin36V, 48V, 60V, 72V DC
- Efficiency94% Synchronous Rect.
- Thermal Range-40°C to +85°C
18–75V to 5V 20A 100W Isolated Supply
- ApplicationControllers & Modems
- Input Range18–75V DC Wide-Bus
- Output Rated5V DC @ 20A (100W)
- PottingEpoxy Vacuum Resin
1500W Buck-Boost Converter with RS485
- Input Window10–60V DC Dynamically Reg.
- Programmable12V / 24V / 28V / 48V
- TelemetryRS485 Modbus RTU
- Surge RatingTVS 6000W Grid Clamping
24V to 12V 100A High-Current Converter
- Input Range18–32V DC Commercial Rail
- Output Current100A Continuous (1200W)
- CoolingExtruded Heatsink Fins
- ComplianceCE, RoHS, ISO 9001
Smart 12V to 43.8V 13A Waterproof Charger
- Input System12V DC Vehicle / Alternator
- Charge Target36V LiFePO4 (43.8V CV)
- WaterproofingIP68 Hermetic Seal
- AlgorithmsAdaptive CC/CV 3-Stage
12V to 48V 20A Industrial Boost Regulator
- Low-Rail Boost9–16V DC Input Range
- Output Bus48V DC @ 20A (960W)
- Ripple/Noise< 50mVp-p Filtered
- Direct QuoteFactory Direct Stock
Engineering Resilient DC Power Topologies in Ukraine: The Imperative for Galvanic Isolation
A mission-critical analysis of electrical grounding loops, common-mode transient strikes, and sub-zero thermal cycling across Ukraine's energy landscape.
Industrial electrical systems across Ukraine operate within one of the world's most unforgiving environments. The compounding challenges of systemic grid instability, sudden high-voltage switching surges, massive load shedding schedules, and severe continental winters (frequently sinking to -30°C) impose stringent requirements on conversion hardware. When central generation fails, facilities switch instantaneously to decentralized diesel gensets, lithium-iron-phosphate (LiFePO4) battery banks, solar arrays, or micro-hydro generation. This dynamic transition induces catastrophic common-mode noise, floating grounds, and high-energy transients across DC distribution buses.
Why Galvanic Isolation Outperforms Non-Isolated Converters in Volatile Grids
A non-isolated DC-DC converter shares a direct electrical path (common ground) between input and output. While cost-effective for benign automotive accessories, this common rail acts as an unrestricted conduit for ground loops, electromagnetic interference (EMI), and destructive reverse EMF spikes generated by auxiliary starter motors or heavy industrial inductive loads. In contrast, an isolated DC-DC converter employs a high-frequency planar transformer combined with optical or magnetic feedback loops to physically separate the primary and secondary stages.
This physical barrier delivers three indispensable technical benefits for systems operating in Ukraine:
- Elimination of Circulating Ground Loops: Ukraine’s complex infrastructure often bridges legacy Soviet-era chassis-ground equipment with modern isolated European standard EN 50155 and EN 61000 field nodes. Galvanic isolation breaks hazardous ground loops that induce data corruption across RS485/CAN interfaces and premature PCB trace burn-out.
- High Dielectric Withstand Voltages: Modules built by Shenzhen Eltrum Electronic Co., Ltd. offer standard galvanic isolation of 1,500V DC, with engineered models scalable to 3,000V DC. This protects mission-critical communications gear from lightning strikes on external antenna towers and EMP-induced grid surges.
- Flexible Ground Referencing: Isolated modules allow design engineers to create floating grounds, establish negative 48V telecom rails from standard positive vehicle batteries, or switch from floating to earth-referenced configurations without changing system topology.
Sub-Zero Dielectric Reliability
Standard converters crack their potting compounds or shift gate switching frequencies when exposed to Ukrainian winter ambient cold down to -40°C. Eltrum applies high-thermal-conductivity silicone elastomer encapsulation that remains elastic across -40°C to +105°C, preventing internal condensation and micro-fractures during thermal shock transitions.
Ultra-Wide Dynamic Input Ratios
Battery banks in wartime regions fluctuate drastically: 48V LiFePO4 packs can sag below 38V under high emergency loads and spike above 58V during rapid high-amperage diesel generator charging. Eltrum isolated series feature 4:1 and ultra-wide 18–90V continuous inputs that maintain ripple-free regulation without rebooting connected logic.
Harmonic Noise & EMI Immunity
Starlink terminals, encrypted VHF/UHF tactical radio repeaters, and precision optical surveillance require near-silent DC lines. Our isolated modules incorporate multi-stage LC filters and copper shielding barriers, holding high-frequency output ripple under 40mVp-p even when fed from distorted non-pure sine inverter buses.
Deployment Scenarios Across Ukraine's Rebuilding Ecosystem
How engineering teams deploy Eltrum isolated DC-DC modules to ensure uptime in telecommunications, railway, and emergency power hubs.
1. Telecommunications & Remote Satellite Nodes (Starlink, LTE-450)
Ukrainian cellular operators (Kyivstar, Vodafone Ukraine, Lifecell) have deployed thousands of decentralized lithium backup banks at base transceiver stations (BTS). When utility power is lost, BTS battery buses drop from 54.4V float charge down to 42V cut-off. Meanwhile, Starlink backup terminals demand a perfectly regulated 48V or 56V PoE rail, while local fiber modems require clean 12V DC.
Eltrum’s isolated 36–75V to 12V 10A and 18–90V wide-input modules provide the exact isolation required to prevent tower lighting ground strikes from destroying underlying network routers, ensuring autonomous data continuity during multi-day grid blackouts.
2. Ukrzaliznytsia (Ukrainian Railways) & Rolling Stock Electronics
Rail transport serves as the vital circulatory system for Ukraine's passenger and logistical mobility. Railway auxiliary supplies feature notorious nominal voltages: 24V, 50V, 75V, and 110V DC. These lines suffer extreme inductive surges during regenerative braking and catenary disconnects.
By employing our isolated DC-DC modules rated for 18–90V and 36–75V, locomotive retrofitting teams safely power onboard GPS trackers, train control systems, emergency cab lighting, and digital communication relays without risking destructive voltage spikes from traction motors.
3. Tactical Mobile Power, UAV Command Shelters & Field Ambulances
Mobile command shelters, field surgery units, and unmanned system charging hubs rely on makeshift power inputs: 24V military vehicle alternators, 48V portable solar units, or 12V starter batteries hooked to portable LiFePO4 caches. Unregulated alternator surges can peak at over 80V during load dumping.
Eltrum’s hermetically sealed IP68 isolated modules and buck-boost stabilizers ensure that critical medical telemetry, drone battery chargers, and night-vision charging banks receive stable, decoupled power even if the generator alternator suffers catastrophic breakdown.
Standard Eltrum Isolated Converter Technical Matrix
Direct comparison of industrial isolated models recommended for procurement engineers across Ukraine.
| Model Series | Nominal Input | Input Range | Output Voltage | Continuous Power | Galvanic Isolation | Enclosure Class |
|---|---|---|---|---|---|---|
| ISO-2412-120W | 24V DC | 18–36V DC | 12V @ 10A | 120 Watts | 1,500 VDC | IP67 Sealed Alloy |
| ISO-4812-120W | 48V DC | 36–75V DC | 12V @ 10A | 120 Watts | 1,500 VDC | IP67 Sealed Alloy |
| ISO-4824-120W | 48V DC | 36–75V DC | 24V @ 5A | 120 Watts | 1,500 VDC | IP67 Sealed Alloy |
| ISO-UW12-120W | Universal 24/48/72V | 18–90V DC | 12V @ 10A | 120 Watts | 2,000 VDC | IP68 Fully Potted |
| ISO-4805-100W | 48V DC | 18–75V DC | 5V @ 20A | 100 Watts | 1,500 VDC | IP67 Sealed Alloy |
| ISO-7224-240W | 72V / 80V DC | 50–100V DC | 24V @ 10A | 240 Watts | 2,500 VDC | Finned Thermal Sink |
| BB-1500-RS485 | 12V / 24V / 48V | 10–60V DC | 12–48V Adj. | 1500 Watts | Chassis Decoupled | IP65 Marine Fan-Cool |
Shenzhen Eltrum Electronic Co., Ltd. Direct Factory Strengths
Serving tier-1 system integrators, municipal infrastructure departments, and global emergency response suppliers with certified Chinese manufacturing.
ISO 9001, CE & RoHS Certifications
Our products are engineered in compliance with European Low Voltage Directive (LVD) and Electromagnetic Compatibility (EMC) standards. Standard CE and RoHS documentation facilitates seamless Ukrainian customs clearance via Western European borders.
Custom Voltage & Algorithmic OEM/ODM
Need non-standard outputs like 13.8V radio float, 28V military aviation rails, or bespoke LiFePO4 3-stage charging curves? Our in-house hardware engineering team customizes magnetic cores, firmware, and harness terminations within 7 business days.
Logistics Adaptability for Eastern Europe
Understanding the logistical challenges facing Ukraine, Eltrum operates flexible shipping corridors via Poland, Slovakia, and Romania via air freight or rail forwarding, supporting EXW, FOB, and CIF arrangements with comprehensive packing declarations.
Frequently Asked Questions by Ukrainian Engineers & Buyers
Practical answers concerning installation, environmental ratings, electrical performance, and cross-border trade.
How do isolated DC-DC converters survive high voltage surges during generator changeovers?
Can Eltrum isolated DC-DC converters operate reliably in unheated outdoor cabinets during Ukrainian winters?
What is the difference between functional, basic, and galvanic isolation in your product catalog?
How do we establish stable Starlink DC power using Eltrum converters in remote setups?
What are your Minimum Order Quantities (MOQ) and sample validation lead times?
Which payment methods and international commercial terms (Incoterms) do you accept?
Empower Your Grid & Field Systems with Verified Isolated Power
Whether you require sample batches for emergency telecommunications nodes or volume OEM production for electric utility fleets, our Shenzhen engineering staff is available to evaluate your schematics and deliver customized power solutions.