DC-AC Inverter
ODS-750 Series
Railway
Relec Electronics recently supported the integration of Premium PSU’s ODS-750 inverter into a major rail project, powering Starlink’s satellite internet technology onboard UK trains. With Relec’s engineering-led approach, the customer got more than a power supply – they got a trusted partner from concept to carriage.
A rail engineering team was working on something a little different, bringing Starlink satellite internet to trains. With passengers expecting fast, uninterrupted connections, Starlink’s low-earth orbit (LEO) network seemed the perfect answer. But powering the system on a moving train? That’s where things got technical.
But there was a catch: the Starlink kit runs on standard 230Vac mains, while the train supplies DC power at anything from 24V to 110V, depending on the vehicle. They needed an inverter that could safely and reliably bridge the gap—compact enough to fit in tight enclosures, robust enough to survive onboard conditions, and compliant with strict rail standards like EN50155.
So, they got in touch with Relec.
We recommended the Premium ODS-750 series, a DC-AC inverter designed specifically for challenging environments, with versions tailored for 12V, 24V, 48V, 72V, and 110V DC inputs. With 230Vac sinewave output, 750VA of power, and onboard protections against overloads, shorts, and undervoltage, it ticked every technical box.
But our role wasn’t just about shipping a unit.
We worked directly with the customer’s design team, helping them select the right input version, advising on mounting positions (thanks to flexible M3 fixings and DIN rail options), and providing full technical documentation, wiring advice, and aftercare support. We reviewed environmental factors like ventilation and load profiles, and ensured the inverter wouldn’t just work in theory but, would work in practice, on every journey.
Where needed, we also suggested alternatives and checked stock availability to support the project timeline. Our goal was to be more than a supplier—we were part of the engineering conversation from start to finish.
With the ODS-750 installed and running, the train’s Starlink system now delivers high-speed, uninterrupted Wi-Fi, something passengers are noticing, and operators are proud of.
The inverter’s reliable 230Vac output keeps everything powered, without noise or interference. Its compact 292 x 130 x 49.6mm footprint meant easy installation, and with EN50155 and EN50121 compliance, it’s ready for life on the rails.
For the engineers, this meant fewer headaches and a smooth rollout. For passengers, it meant streaming, working, and browsing without signal dropouts. And for Relec, it meant another job done properly—not just supplying components but solving problems.
Reach out to our expert team. Let’s start a conversation today!