72V to 24V 10A/20A Step-Down Buck Module
- Input Voltage30V–90V DC Wide
- Output Power24V @ 10A/20A (Up to 480W)
- EnclosureIP68 Potted Aluminum
500+
Standard Power Formats
96.5%
Peak Conversion Efficiency
IP68
Submersible Marine Protection
130+
Global OEM Export Markets
OEM & Direct Factory Supply
High-Efficiency DC-DC Step Down & Hybrid Charging Modules
Verified hardware topology configurations compatible with Cork's offshore vessel architectures, automated guided vehicles (AGVs), electric utility machinery, and industrial 72V traction battery architectures.
48V/72V to 24V 40A 1000W Industrial Buck
- Input Window38V–85V DC Range
- Continuous Amps24V Fixed @ 40A
- ProtectionOCP, OVP, Thermal Auto-Cut
Isolated 36V–75V to 24V 5A Galvanic Module
- Dielectric Isolation1500V DC Primary-Secondary
- Output Rail24V Regulated @ 5A (120W)
- Noise Attenuation< 50mVp-p Low Ripple
24V to 12V 85A/100A Heavy Vehicle Converter
- Input Voltage18V–36V DC Continuous
- Output Current12V DC @ 85A–100A (1200W)
- CertificationsCE, RoHS, Vibration ISO 16750
1500W Multi-Bus Buck-Boost Regulator
- Dynamic Range10V–60V Universal Range
- Output Options12V / 24V / 28V / 48V Custom
- CommunicationRS485 Telemetry Feedback
18V–90V Universal to 12V/24V Module
- Input Flexibility18V–90V Wide (72V Nominal)
- Output Regulated12V @ 10A or 24V @ 5A
- ApplicationForklifts, Electric Golf Buggies
Smart 36V/48V Waterproof Lithium Charger 13A
- TopologyDC 12V/24V to DC 43.8V CC/CV
- Charging Rate13A Max True Lithium Curve
- SealingIP67 Fully Waterproof Epoxy
600W Multi-Volt Maritime Subsystem Charger
- Voltage Flexibility12V / 24V / 36V / 48V Packs
- Power Output600W Continuous Sustained
- Corrosion RatingSalt-Spray Resistant Anodizing
Engineering Whitepaper & Bench Analysis
Overcoming Voltage Transients and Galvanic Potential in 72V to 24V Architectures
A rigorous examination of power topology performance across real-world Irish industrial, maritime, and automated environments.
| Conversion Model | Nominal Input Range | Output Specs | Peak Efficiency | Thermal Derating | Target Engineering Application |
|---|---|---|---|---|---|
| ELT-7224-10A | 30V – 90V DC Wide | 24.0V ± 1% (10A, 240W) | 95.8% | Ta = 50°C Full Load | Cork Harbour Automated Mooring Sensors, Marine Radars |
| ELT-7224-20A | 36V – 95V DC Wide | 24.0V ± 1% (20A, 480W) | 96.2% | Ta = 45°C Full Load | Pharma Cleanroom AGVs, Little Island Industrial Robotics |
| ELT-7224-40A-IND | 40V – 90V DC Transient | 24.2V ± 0.8% (40A, 968W) | 96.5% | External Cold-Plate Required | Ringaskiddy Port Electric Tug Winches, Hybrid Excavators |
| ELT-ISO-7224-5A | 36V – 85V Galvanic | 24.0V Isolated (5A, 120W) | 91.4% | 1500V Hipot Isolation | Offshore Buoy Instrumentation, Subsea Telemetry Relays |
Circuit Protection Insight
Handling Regenerative Braking Spikes in 72V Lithium Traction Packs
In traction applications such as warehouse reach trucks, electric utility loaders, and automated container shuttles operating across Cork's commercial distribution hubs, nominal 72V Li-ion or LiFePO4 battery banks rarely exhibit static DC rails. During rapid deceleration or mechanical regenerative braking, voltage spikes frequently crest 92V to 105V DC within milliseconds.
A standard consumer buck regulator operating on a narrow 60V–80V input tolerance inevitably experiences MOSFET avalanche breakdown or electrolytic capacitor degradation under these continuous back-EMF conditions. Eltrum's 72V to 24V industrial platforms incorporate high-breakdown 150V planar trench MOSFETs coupled with active bilateral TVS suppression arrays. This hardware buffer ensures your sensitive 24V telemetry, PLC controllers, emergency valves, and LiDAR suites remain entirely isolated from destructive bus resonance.
- Peak Transient ToleranceUp to 110V DC (100ms Duration)
- Continuous Dynamic Range30V to 90V DC Uninterrupted
- Reverse Polarity ShieldingMOSFET-Gate Auto-Latch Circuit
- Short Circuit RecoveryHiccup Auto-Restart (< 250ms)
- Switching Frequency180kHz Synchronous Rectification
- EMC ComplianceEN 61000-6-2 / EN 61000-6-4
Cork Regional Infrastructure Deployments
Mission-Critical Operating Environments in County Cork
How Eltrum's specialized 72V to 24V conversion hardware addresses real-world environmental and electrical challenges across Munster's industrial backbone.
Port of Cork Maritime Electrification
The Port of Cork and the Ringaskiddy Deepwater Terminal are rapidly transitioning auxiliary vessels, pilot boats, and quayside handling equipment toward hybrid-electric and 72V battery propulsion architectures.
- Guarantees clean 24V power to radar scanners, sonar heads, and NMEA 2000 marine networks.
- Full vacuum-potted epoxy sealing stops salt-fog ingress and galvanic electrolytic corrosion.
- Withstands extreme mechanical shocks from rough Atlantic chop and heavy ship-to-shore mooring.
Biopharma Cleanroom & Little Island AGVs
Cork hosts 8 of the world's top 10 pharmaceutical companies. Automated guided vehicles (AGVs) operating in zero-emission cleanrooms rely on 72V traction packs to handle heavy fluid totes and bulk raw ingredients.
- Powers optical guidance LiDAR, safety interlocks, and 24V Siemens/Beckhoff fieldbuses without ripple.
- Galvanically isolated variations break ground loops, preserving sensor calibration integrity.
- Ultra-low EMI footprint certified against precision laboratory instrument interference.
Celtic Sea Offshore Wind & Agri-Tech
Deployments in floating offshore substations off the Cork coast and electrified heavy agricultural machinery throughout North and East Cork demand extreme hardware durability in ambient temperatures down to -20°C.
- Operates across freezing winter cold snaps and sealed, high-ambient summer enclosures.
- Integrates easily into dual-battery renewable systems using solar or wind buffer storage.
- Wide-input buck technology handles cold-cranking dips and sudden generation surges.
Macro Trends & Compliance
Emerging Strategic Trends Across the Cork Power Sector
Understanding the technological migration from legacy 12V/24V systems to high-voltage distributed DC architectures in Ireland's Southern Region.
Migration to 72V/96V Battery Architectures
Heavy machinery and intra-logistics OEMs are abandoning legacy 24V drive motors in favor of 72V systems to cut wiring copper weight and I²R resistive thermal losses by up to 75%. However, all standard sensors, solenoids, valves, and human-machine interfaces (HMIs) remain universally standardized on 24V DC. Rugged, continuous step-down conversion is now a mandatory architecture tier rather than an afterthought.
Mandatory EU Machinery & Maritime Directives
Under EU Regulation 2023/1230 and CE Low Voltage / EMC directives enforced throughout Ireland, industrial equipment cannot export electromagnetic noise back into utility feeds or safety-critical lines. Eltrum's hardware is validated to EN 55032 Class B limits, protecting surrounding wireless telecommunications and sensitive PLCs in high-density facilities like Cork Airport Business Park.
Decarbonization Targets & Offshore Wind Support
Ireland's Climate Action Plan mandates 5GW of offshore wind capacity by 2030, with the Celtic Sea serving as a primary deployment theater. Support vessels, remote sensor buoys, and autonomous underwater docking pods require auxiliary converters that can run continuously off fluctuating 72V LiFePO4 batteries without field maintenance or cooling fan breakdowns.
Direct Factory Reliability
Why Tier-1 Engineers Choose Shenzhen Eltrum Electronic
Combining decade-long specialized power electronics engineering with direct manufacturing control and ISO 9001 certified quality systems.
Shenzhen Manufacturing Facility · Established 2015
Precision SMT Production
100% Full-Load Burn-In
Precision Engineering Tailored for Global OEMs
Founded in 2015, Shenzhen Eltrum Electronic Co., Ltd. has established itself as an authoritative leader in high-efficiency DC-DC buck, boost, buck-boost, and transformer-isolated power conversion. Operating from our dedicated 3,000 m² factory equipped with modern SMT assembly lines, potting automation, and automated functional test bays, we produce over 500 cataloged power platforms.
Every single step-down converter slated for shipment undergoes multi-stage inspection, culminating in our 100% 4-hour full-load thermal burn-in chamber. This rigorous protocol eliminates infant mortality defects before products ever board an aircraft or container vessel bound for Irish ports.
Whether you require standard stock modules starting from a flexible 5-unit prototyping batch or deep ODM customization—including custom potting resins, aerospace connectors, modified step-down current ratings, or RS485 telemetry integration—our seasoned engineering team collaborates directly with your technical staff.
ISO 9001:2015
CE Standard
RoHS Compliant
500+ Active Models
Direct Factory Knowledge Base
Frequently Asked Questions by Cork Procurement Teams
Detailed engineering, logistical, and commercial inquiries answered by Eltrum's technical sales engineers.
What is the difference between non-isolated and isolated 72V to 24V converters for Irish industrial sites?
Non-isolated synchronous buck converters share a common negative ground between the 72V battery input and the 24V output. They offer maximum efficiency (up to 96.5%), a significantly smaller footprint, and lower costs—making them ideal for heavy commercial vehicles, golf carts, and compact e-mobility. Isolated DC-DC converters incorporate a high-frequency planar transformer that completely breaks the ground connection (providing 1500V+ dielectric isolation). This is mandatory for offshore marine sensor networks, telecom equipment with positive grounding, and biopharmaceutical PLC systems where ground loops or voltage shifts could induce costly signal errors.
How do these step-down units perform under cold Atlantic coastal conditions in Cork Harbour?
All our ruggedized converters are encased in high-grade extruded aluminum alloy housings fully encapsulated with automotive-grade thermally conductive epoxy resin (rated IP68). This hermetic barrier completely isolates sensitive planar magnetics and SMT components from salty coastal air, condensation, cyclic freeze-thaw cracking, and submersion up to 1 meter. The units operate reliably across an ambient temperature range of -40°C to +85°C.
What lead times and delivery channels apply for commercial shipments into Cork and Dublin?
For evaluation samples (MOQ from 5 units on standard series), orders typically dispatch via priority air express (DHL/FedEx/UPS) within 3 to 5 business days, reaching Cork Airport or Ringaskiddy within 4 to 7 working days with full customs tracking. Volume commercial production orders (100 to 5,000+ units) typically run on a 2 to 3 week factory production cycle, available on FOB Shenzhen, CIF Port of Cork, or DDP direct-to-door terms.
Can the 24V output voltage and current limit be customized for specific battery backup floats?
Yes. Through our comprehensive ODM engineering service, our Shenzhen R&D team can calibrate the factory feedback loop to provide fixed non-standard outputs—such as 27.6V for 24V lead-acid float charging, 29.2V for 8S LiFePO4 packs, or tight 24.0V ± 0.5% regulation for sensitive medical instrumentation. We also configure custom harness wire lengths, terminal ring lugs, waterproof Amphenol/Deutsch plugs, and RS485 communication protocols upon request.
What surge protections are included against inductive kickback from high-power electric motors?
Our 72V to 24V industrial converters feature multi-stage input filtering consisting of low-ESR solid electrolytic capacitors, heavy transient voltage suppressor (TVS) diodes, and integrated metal-oxide varistors (MOVs). When high-torque hydraulic pumps, drive inverters, or winches produce rapid inductive collapse spikes across the 72V DC bus, the internal clamping circuit safely absorbs transient voltages up to 110V DC without stressing the step-down switching transistors.
Are Eltrum products fully certified under European Union import and safety standards?
Every converter series exported to Ireland and the broader European market strictly complies with CE Electromagnetic Compatibility (EMC) Directive 2014/30/EU, Low Voltage Directive (LVD) 2014/35/EU, and EU RoHS Directive 2011/65/EU regarding hazardous substances. Comprehensive lab test reports, Declaration of Conformity (DoC) certificates, and technical datasheets are available directly from our engineering team for streamlined CE technical file compliance.
Architect Your High-Voltage DC Infrastructure with Eltrum
Whether you require standard 72V to 24V step-down buck regulators for testing or need custom-engineered power conversion modules for mass production, our Shenzhen engineering factory is ready to assist.