Wednesday, January 28, 2026
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Space-Saving Power Supply

Low on space, heat, or budget? This DIN-Rail power supply gives power, efficiency, and easy setup for industrial and automation systems.

RACPRO1-S120 Series
RACPRO1-S120 Series

Space, heat, and budget are common headaches when designing industrial or automation systems. The RECOM RACPRO1-S120 DIN-Rail PSU solves these issues by delivering high power in a tiny footprint. It’s perfect for engineers, system integrators, and OEMs who need reliable, efficient power without sacrificing space or thermal performance.

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Despite being just 100 mm high, 112 mm deep, and 28 mm wide, it packs up to 120 W of continuous output with convection-only cooling. That gives a power density of 500 W per liter, with efficiency reaching 93.3 %. For warmer environments or short bursts, it can deliver up to 144 W at 45 °C and handle surges of 150 % for five seconds, making it suitable for motors or inductive loads.

Output is flexible, with adjustable voltages at 12 V, 24 V, or 48 V DC. Extended return voltage tolerance protects systems from back-feed, and a DC-OK signal makes monitoring simple. The PSU runs on universal single-phase AC or 88–370 V DC, with active inrush current limiting to prevent stress on components.

It meets global safety standards and complies with EN 61000-6-4 Class B for emissions and EN 61000-6-2 for immunity. No-load power consumption is extremely low at 0.3 W. Installation is fast with tool-less mounting and 25° push-in connectors. Reliability is high, with a lifetime expectancy of 111,000 hours at 40 °C, and it weighs just 330 g, making it suitable for dense, compact, and mission-critical systems.

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“We are leading the market with our new DIN-Rail PSUs, which are ideal for a wide range of demanding industrial applications such as automation, energy distribution, test and measurement, infrastructure, data/telecom and many more”, comments Michael Peters, Business & Product Manager of RECOM.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a Senior Technology Journalist at EFY with a deep interest in embedded systems, development boards and IoT cloud solutions.

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