Lovato PSL1M10024 Power Supply 24 V DC 4.2 A 100 W

Lovato PSL1M10024 DIN rail power supply, 24 V DC 4.2 A 100 W

The Lovato PSL1M10024 is the 100 W member of the PSL1M switching power supply range. It converts a 100 to 240 V AC supply to 24 V DC at 4.2 A, with output trimming up to 28 V, and uses five DIN rail modules. Efficiency is 89 percent, three points better than the 60 W PSL1M06024. Seven Star LLC supplies the PSL1M10024 in Oman and the GCC as an independent supplier in Muscat.

The code gives power and voltage: 100 is the rated power in watts and 24 the output voltage.

PSL1M10024 technical specifications

PSL1M10024 compared with the 60 W model

The derating knee is higher: the PSL1M10024 holds full power to 60 °C instead of 56 °C, a useful gain in a hot panel. Because of the higher efficiency it dissipates about 12 W at full load, similar in absolute terms to the smaller model despite the higher output, and it is wider by one module and 132 g heavier. The input current rises from 1.5 A to 2.2 A, so upstream protection should be sized with that in mind.

At the 71 °C limit, 11 degrees above the knee, the power available falls by 27.5 percent to about 72 W. Plan the cabinet so that it stays well below that.

How the PSL1M10024 protects the 24 V circuit

Overload current is limited between 110 and 150 percent of rated, and the fold-forward short-circuit characteristic reduces the output instead of tripping off completely, so recovery after a fault is automatic. The potentiometer allows the output to be set between 24 and 28 V. The isolation between input and output is 3000 V AC. Because parallel operation is not allowed, redundant supplies must be coupled through a decoupling or redundancy module.

Where the PSL1M10024 fits

It suits mid-size control panels with a PLC, several I/O modules, field instruments on 24 V and a few contactor coils. As a rule, add up the steady load and the inrush of all solenoids and coils, then choose 100 W when the 60 W model would be loaded above about 70 percent. The Lovato micro PLCs LRD12RD024 and LRK12RD024 draw little power and are comfortably supplied by either, so the larger unit is for the field devices around them.

PSL1M10024 selection and ordering checklist

• Sum the load currents of PLC, I/O, instruments and coils
• Add 25 percent margin and compare with 4.2 A
• Assess the panel temperature against the 60 °C derating knee
• Check upstream breaker against 2.2 A input and inrush
• Plan five modules of space on the rail
• Decide whether a redundancy module is required

Installation and maintenance of the PSL1M10024

Install vertically on a 35 mm rail with free air above and below, connect line and neutral through a suitable breaker, and adjust the trimmer under load. Check the low-voltage LED: it lights when the output falls too low, for example from a cable fault or overload. Include the supply in the annual thermography round and replace it as part of the panel overhaul when its capacitors, the part most affected by heat, are old.

Typical PSL1M10024 applications in Oman and the GCC

Applications include compressor control panels, water treatment skids, tank-farm instrumentation panels and building management panels. Where panels sit outdoors in direct sun, the 60 °C derating knee is an advantage, though it remains sensible to shade and ventilate the enclosure.

Redundancy and backup with the PSL1M10024

Critical control loops, such as burner management or tank-level shutdown circuits, should not hang on a single power supply. The accepted approach is two supplies feeding the load through a redundancy module so that either can fail without a loss of power, with an alarm contact monitored by the PLC. Because direct parallel connection is not permitted for this supply, do not simply join the two outputs on a terminal block.

Another option is to take the DC input range of 120 to 375 V DC, which allows the supply to be fed from a DC bus or battery inverter in addition to the AC mains. Check the instruction sheet before relying on this in a design, because the DC range is listed in the data table but the connection details and protective devices differ from AC practice.

Information to send with an RFQ for the PSL1M10024

• Part number PSL1M10024 and quantity
• Load current and peak inrush
• Mains voltage and frequency
• Panel temperature
• Space and mounting
• Delivery location

Site conditions in Oman for the PSL1M10024

Electrical rooms and outdoor panels in the Gulf often operate well above the 25 °C reference temperature used in many catalogues. Before you finalise the PSL1M10024, compare the expected panel temperature with the operating range and any output derating stated in the manufacturer documentation, and leave the recommended clearance above and below the device for convection. Supply quality also varies between sites, so confirm the input voltage range, frequency and any requirements for protection on the supply side.

Where the device feeds or monitors critical loads, plan how faults will be signalled to the control system and how a replacement can be installed quickly. Keeping one spare PSL1M10024 per site and recording its settings helps maintenance teams in Oman restore service with minimum downtime.

Documents and quotation

Send the part number PSL1M10024 and we will confirm the documents available for it, such as the technical data sheet, wiring diagram and instruction sheet, together with availability and lead time.

Seven Star LLC is an independent supplier in Muscat and is not an official channel of the manufacturer. Share the quantity, delivery location and project reference with the request and we will answer with a formal quotation.