48V to 24V DC-DC DIN-Rail Buck: 8.8mm Wide, 1A

Add a 24 V, 1 A auxiliary rail in just 8.8 mm of DIN space — reverse-polarity proof, short-circuit safe, and rated for 48 V nominal input.

• 8.8 mm DIN width
• 1 A continuous at 30 °C
• Reverse-polarity proof

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Designed for the tightest DIN-rail installations

8.8 mm width: pack more I/O into the same panel

Slide the DCC4824 into rail space that’s too narrow for a standard converter — and reclaim every millimetre for relays, contactors, or I/O modules. At just 8.8 mm wide, it leaves over 60 % more room than a typical 22.5 mm unit, letting you build denser control cabinets without adding extra DIN rail.

1 A full load to 30 °C: no derating in normal cabinets

Most compact converters begin cutting current well below 30 °C, forcing you to oversize or add cooling. The DCC4824 delivers 1 A continuous at up to 30 °C ambient, so your 24 V control circuits get full power without forced airflow — just clip it on the rail and forget it.

Wide input range: works from 28 V to 48 V without adjustment

Power it from any DC bus between 28 V and 48 V. The converter automatically regulates the output — no jumper, no DIP switch. Whether you run a 48 V distribution, a 36 V backup battery, or an intermediate voltage, the DCC4824 adapts with no setup.

Built to survive mistakes and faults

Reverse-polarity protection: survive wiring errors

If a tech flips the input polarity, the DCC4824 simply blocks the current — no smoke, no failure. Wire it correctly and operation resumes. With protection to -48 V DC, you can avoid expensive field-service calls caused by a swapped wire.

Output short-proof: safe against miswires and load faults

Short the output, and the converter limits current indefinitely — it doesn’t latch off or oscillate. Remove the short, and regulation returns immediately. No fuse to replace, no trip to reset, and no downtime waiting for a spare.

Power Good LED: confirm output at a glance

The green LED on the front face lights when the 24 V output is in regulation. During commissioning or troubleshooting, a single glance tells you whether the converter is working — no need for a multimeter just to check power.

How the DCC4824 stacks up against typical compact buck converters

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Downloads

• Datasheet (PDF) — full specifications, efficiency curves, and mechanical drawings
• STEP 3D Model — integrate into your panel layout

Frequently Asked Questions

What is the valid input voltage range, and does it change with load?

Yes — the minimum input voltage depends on load. At full load (1 A) the input must be at least U_out + 4 V; at no load U_out + 2 V is sufficient. Nameplate U_in,max is 48 V (absolute max 53 V per spec table). So a DCC4812 needs ≥16 V at 1 A, a DCC4824 needs ≥28 V — a 24 V bus cannot drive the DCC4824 at full load.

What output voltages are available across the family, and how accurate are they?

Three fixed variants: DCC4805 outputs 5 V (4.8–5.6 V), DCC4812 outputs 12 V (11.8–12.6 V), DCC4824 outputs 24 V (23.7–24.8 V). Output voltage tolerance is ±2 % dynamic typical, with solid voltage stability across the full 0–1 A output current range.

What protection mechanisms are built in?

Four protections are listed: reverse-polarity input to -48 V DC, indefinite short-circuit, open-circuit safe operation, and an input TVS diode (1SMA4758A) clamping input transients. The datasheet does not mention a separate output OVP or a thermal shutdown — at 1 A continuous above 30 °C ambient, add airflow or derate to ≤0.3 A.

How is output current capability derated at higher ambient temperatures?

At full load (1 A) the operating range is -40 °C to +30 °C. Reducing the load to 0.3 A or below extends the range to the full -40 °C to +50 °C. The datasheet doesn’t specify an active thermal shutdown, so thermal management above 30 °C at full load is the user’s responsibility.

What is the mechanical form factor, and does it fit standard DIN rail enclosures?

Yes — DIN-rail mount, fuse-box style, only 8.8 mm cabinet width. The datasheet lists the mounting type as DIN RAIL with mounting width 8.8 mm; the rail standard is conventional top-hat (35 mm). A green Power-Good LED on the front lights when output is in regulation.

Can the output voltage, current limit, or protection thresholds be customised?

Yes — DPS customises output voltage, current limit, and TVS protection thresholds for production volumes. An engineering fee applies; contact DPS to scope your variant. Standard catalogue variants (5 V, 12 V, 24 V) ship from stock.

Related Products

• DCC4805 — 5 V output, same 8.8 mm ultra-slim design, 1 A
• DCC4812 — 12 V output, 1 A, for sensors and industrial relays