Schneider Electric ABL2REM24020K 24 V DC 53 W Power Supply

ABL2REM24020K: Modicon ABL2 24 V DC power supply rated 53 W

The ABL2REM24020K is a regulated switch mode power supply from the Schneider Electric Modicon ABL2 range. It converts mains AC into 24 V DC and delivers up to 2.2 A (53 W), enough for a small group of PLC inputs, relays, sensors or pilot devices. Its input is a single wide band of 100–240 V AC single phase with limits of 85–264 V, which means one reference covers both 110–120 V and 220–240 V networks without any change on the unit. Seven Star LLC supplies the ABL2REM24020K in Oman and the GCC as an independent supplier based in Muscat.

In the reference, ABL2 is the range prefix and 24 is the output voltage in volts. The digits after it and the K suffix form the manufacturer’s size code, which rises with output current across this family (here 2.2 A); we do not decode it further than that, and the code printed on the datasheet is the authority.

Input side of the ABL2REM24020K: voltage, inrush and fuse

The input is rated 100–240 V AC single phase with limits of 85–264 V, so the same reference can sit in a 230 V panel in Muscat or in an imported machine built for 115 V without a different catalogue number.

At full load the unit draws 0.6 A at 240 V, has an efficiency of 87 % and a power factor (cos phi) of 0.45. The inrush current is 45 A at 100–240 V AC, so a miniature circuit breaker upstream should be a curve that tolerates the switch-on peak when several supplies start together. This unit also carries an integrated fuse that the datasheet marks as not interchangeable: if it opens, the supply is replaced and not repaired. The holding time is ≥ 12 ms at 115 V, which is the bridge it can offer through a short mains dip before the 24 V rail collapses; sensitive controllers may still need a separate buffer.

Installing the ABL2REM24020K: mounting, cooling and environment

The housing measures 99 × 82 × 30 mm and weighs 0.25 kg. Mounting is listed as DIN rail with accessory / Panel mounting with accessory, so a mounting accessory is needed, so confirm the correct accessory when you order the ABL2REM24020K. The unit may be installed in any position, but remember that derating applies: the ambient range is −30 to 70 °C with a power derating of 2.5 % per °C, storage −40–85 °C, humidity 10–95 % and altitude up to 5000 m. Protection is IP20 conforming to IEC 62368-1, so the unit belongs inside a closed enclosure with pollution degree 2.

The ground connection uses a screw terminal for 1 × 4 mm² (12 AWG). A green LED on the unit shows that the output voltage is present, which is the first thing to check during fault-finding. Vibration resistance is 4 gn between 10 and 500 Hz to IEC 61131-2, a useful figure for supplies bolted to pumps and compressors skids. The marking is CE and the datasheet also lists EAC, IC, RoHS, KC and RCM.

ABL2REM24020K technical specifications

Selecting the ABL2REM24020K correctly

• Add up the 24 V load and keep it below 2.2 A; leave margin for temperature, since the datasheet applies a power derating of 2.5 % per °C within the −30 to 70 °C ambient range.
• Check the mains: 100–240 V AC single phase, limits 85–264 V.
• Decide how the supply will be mounted and order the matching mounting accessory with it.
• Make sure the cabinet can shed the 7.9 W of heat this unit dissipates.
• Confirm that a single non-redundant supply is acceptable, because the datasheet lists only series output coupling.

Output behaviour and protection of the ABL2REM24020K

The output is 24 V DC with the voltage window specified as 20.4–27.6 V and a line and load regulation of ± 1 %. At the nominal output the ABL2REM24020K supplies 2.2 A; at 80 % utilisation that is about 1.76 A, which is a sensible planning figure if you want thermal margin in a hot cabinet.

Protection is built in against overload, short-circuit and overvoltage. The datasheet gives the overload and short-circuit thresholds as 1.1–1.5 times the nominal current and the overvoltage threshold as 28.8–33.6 V. Output coupling is listed as series only, so do not plan on paralleling two of these units for redundancy or to double the current; use the next size up instead (ABL2REM24045K, 108 W).

Typical uses of the ABL2REM24020K in Oman and the GCC

A 53 W 24 V supply suits a compact panel with a handful of sensors, relays and a small controller. This unit is the kind of component specified by panel builders and maintenance teams working on water treatment skids, building services, packaged machines and small utility installations across Oman and the GCC. Heat is the dominant stress in the region: panels in direct sun or plant rooms without good air conditioning quickly use up the thermal headroom, so apply the derating figure (2.5 % per °C) with real cabinet temperatures, not the room temperature.

ABL2 24 V family around the ABL2REM24020K

This unit is one of six ABL2REM references that share the same 24 V DC output and differ in power and size. The next smaller step is ABL2REM24015K (36 W, 1.5 A). The next larger step is ABL2REM24045K (108 W, 4.5 A).

Information to send with an RFQ for the ABL2REM24020K

• Exact reference ABL2REM24020K and quantity.
• Mains voltage and frequency at the installation.
• Total 24 V load and whether the panel already has a mounting accessory.
• Highest expected cabinet temperature.
• Delivery location and the date you need the goods.

Documents and quotation

The manufacturer datasheet for the ABL2REM24020K is attached on this page and carries the complete specification set, including the dimension drawings and the derating information. Compare the datasheet revision with your project documents before you freeze a bill of materials.

Send us the reference ABL2REM24020K, the quantity and the delivery location, and Seven Star LLC will reply to your request for quotation. We work as an independent supplier based in Muscat and serve customers across Oman and the GCC.