Weidmuller PRO QL 72W 24V 3A Power Supply

Weidmuller PRO QL 72W 24V 3A power supply, order no. 3076350000

Order number 3076350000 is the Weidmuller PRO QL 72W 24V 3A, a compact 24 V DC switch-mode supply with 72 W output in a 32 mm wide metal housing for TS 35 rail. Unlike the PRO MAX line it has no floating alarm contact; it reports status with a single green LED, which makes it a simple choice for small panels. Seven Star LLC supplies 3076350000 in Oman and the GCC as an independent supplier in Muscat.

The PRO QL is aimed at panels where a basic, reliable 24 V rail is needed and where cabinet depth is limited. At 106 mm deep and 125 mm high it is smaller than the PRO MAX 72 W unit (130 mm high, 125 mm deep), and the data sheet lists a conformal coating on the electronics.

Reading the PRO QL 72W 24V 3A designation

Technical specifications for 3076350000

Power capability and temperature behaviour of 3076350000

The datasheet allows the full 3 A up to 50 °C and 1.65 A at 70 °C, so the supply is derated more steeply than the PRO MAX family with its 60 °C knee. For a cabinet that reaches 55 to 60 °C, calculate the available current from the derating curve in the data sheet rather than assuming 72 W. Operation is rated from -30 °C, and start-up is possible from -40 °C.

At full load the unit dissipates 10.37 W, with 0.88 W at idle. The output can drive capacitive loads up to 6.000 µF, which suits electronic power distribution modules with large input capacitors. Output ripple is below <120 mVpp.

Input range, inrush and ride-through for PRO QL 72W 24V 3A

The input accepts 90–264 V AC, or 110–370 V DC (derating at <120 V DC) DC with derating below 120 V DC. Inrush is 40 A @ 230 V AC, 25 °C, which is considerably higher than the PRO MAX 72 W unit, so upstream breakers of characteristic C are the safer choice when several units start from one circuit. Mains failure bridging is above 80 ms at 230 V AC and above 20 ms at 115 V AC. The data sheet states protection class II and still provides terminals for L, N and PE.

Where 3076350000 fits among related Weidmuller supplies

For a 72 W requirement with a floating alarm contact and higher boost capability, Weidmuller offers 1478100000 (PRO MAX 72 W 24 V 3 A, 32 mm wide) and, for 12 V, 1478220000. For 120 W and 240 W, consider 1469480000 and 1469490000 in the PRO ECO line or 1478110000 and 1478130000 in the PRO MAX line. Choose 3076350000 when the application only needs a basic rail and a simple local status LED.

Selection checklist for 3076350000

• Total 24 V load, including peaks, against 3 A at up to 50 °C ambient and 1.65 A at 70 °C.
• Whether a remote supply-fail contact is required; this model has none.
• Mains or DC supply at site and its minimum value (110 V DC lower limit with derating).
• Cabinet depth against 106 mm and rail space against 32 mm.
• Breaker characteristic and rating for the inrush stated above.

Installation and maintenance of PRO QL 72W 24V 3A

Mount horizontally on TS 35 rail with 50 mm of free space above and below for air circulation; units can be mounted side by side without gaps. Input terminals take up to 6 mm² rigid and output terminals 6 mm², with a tightening torque of 0.5 Nm to 0.6 Nm. Set the output voltage on the potentiometer with the load connected and confirm that the green LED is lit. Keep dust off the housing, check terminals at the first shutdown, and keep one spare for critical panels.

Typical applications in Oman and the GCC

This size is common in small instrument and telemetry cabinets, local control panels for pumps and fans, building-services panels and remote I/O boxes at wellhead or pipeline sites. Heat and dust are the main issues in the Gulf, so mount it in a sealed or filtered cabinet and apply the derating figures to the real cabinet temperature rather than the room temperature.

Information to send with an RFQ for 3076350000

• Exact order number 3076350000 (PRO QL 72W 24V 3A) and the quantity, including spares or packs.
• Load current at 24 V and the maximum cabinet temperature.
• Supply voltage and whether a DC feed is used.
• Whether a supply-fail contact is needed (alternative models can be quoted).
• Delivery location (Muscat, Sohar, Salalah or elsewhere in the GCC) and the date you need the goods.
• Any documents you need with the quotation, such as the datasheet or a compliance statement.

Documents and quotation

The manufacturer data sheet for 3076350000 is attached on this page. It lists the ordering data, approvals, ratings and drawings, so please check its notes against your design before you order.

To request a quotation, send order number 3076350000, the quantity and your delivery location. Seven Star LLC is an independent supplier in Muscat and is not affiliated with the manufacturer; we will confirm availability and lead time for your order.