LED Strip Driver 48V Rack Mount: 8A DC/DC LED Driver
Drive LED strips directly from a 48 V cabinet bus with full Modbus control, 8 A peak, and operation down to -40 °C.
- ✓ Modbus-programmable current & voltage
- ✓ 8 A peak output current
- ✓ Operates down to −40 °C
Add Modbus control to any 48 V LED strip installation
Adjust brightness, flash patterns, or output voltage from your PLC without visiting the cabinet. The LED48RM is a direct DC/DC buck converter that takes your 48 V bus down to the precise voltage your LED strips need — all set and read over Modbus registers. No external converters, no manual trimpots.
- Programmable output voltage from 0 V to 95 % of input
- Programmable blink modes for signaling, effects, or status indication
- Current limit settable from 0 A to 8 A via Modbus holding registers
Precision dimming without flicker
Achieve stable, ripple‑free light at any dimming level. Constant‑current/constant‑voltage control and 90 % typical efficiency (94 % peak) mean minimal heat and no visible flicker, even on long LED strip runs. Modbus‑programmable blink modes deliver attention‑grabbing effects without an external modulator.
How the LED48RM eliminates reliability risk and control costs
| Criterion | Typical LED driver | LED48RM |
|---|---|---|
| Efficiency | ~82 % (fixed converter) | 90 % typical, 94 % peak |
| Output control | Fixed voltage/current, no bus | Modbus‑adjustable 0–95 % Uin, 0–8 A |
| Operating range | 0 °C to +40 °C typical | Verified from −40 °C ambient |
| Input protection | Reverse polarity damage risk | Reverse polarity, short‑circuit, overtemperature |
| Blink modes | External controller needed | Built‑in programmable blink patterns |
Built‑in protection cuts maintenance calls
Protect your LED investment with input reverse‑polarity, output short‑circuit, and thermal shutdown. A status relay reports driver health to your control system. No external fuses or monitoring modules required — one less point of failure in the cabinet. The DC/DC design limits current to safe levels during a fault and recovers automatically.
FAQ
Can I use the LED48RM outdoors?
No — the driver is IP20 and requires a protected enclosure. However, operation has been verified down to −40 °C, so cold outdoor cabinets are fine.
Is the LED48RM compatible with standard 48 V DC bus systems?
Yes. The input range spans 8 V to 50 V, so it works directly on a 48 V rail (with adequate headroom). The output voltage can be set up to 95 % of input, covering all common LED strip voltages.
Do I need a separate programming tool for Modbus?
No extra hardware is required. The unit communicates via Modbus RTU over its built‑in serial interface; you can read and set output current/voltage and blink modes from any standard Modbus master (PLC, gateway). A comprehensive software tool is available for commissioning.
What lifetime can I expect?
The LED48RM is built around a non‑isolated buck architecture that runs cool and avoids large electrolytic storage components, contributing to long service life. Actual lifetime depends on ambient temperature and load profile; in controlled environments it is designed for decades of continuous operation.
Can I get the LED48RM with a different default output voltage or current?
The unit ships set to 48 V / 5 A, but you can reprogramme the output via Modbus to any combination within 0–95 % of input voltage and 0–8 A. No custom variant is needed — just send the register values after installation. Contact us if a large pre‑configured batch is required.
Pricing & shipping
| Quantity | Price / unit |
|---|---|
| 1+ pcs | EUR 70.00 |
✓ Free shipping on orders from EUR 199
Live pricing, updated automatically. Net prices, VAT excluded.
Related Products
- LED24RM: 24 V / 8 A DC/DC LED driver with Modbus programmability — same buck architecture for 24 V LED strips.
- HDR20-5-12: Ultra‑compact 12 V 20 W DIN‑rail supply — electrolytic‑free design, ideal for auxiliary control power in the same cabinet.
- Engineered in Germany
- CE / EMC compliant
- Manufacturer warranty
- B2B terms & volume pricing