Phoenix Contact QUINT4-PS/3AC/24DC/40/CO Power Supply 40 A

QUINT4-PS/3AC/24DC/40/CO: three-phase 24 V DC 40 A supply with protective coating

The Phoenix Contact QUINT4-PS/3AC/24DC/40/CO (order no. 1783052) is a high-power supply: three-phase input, 24 V DC output, 40 A nominal. CO in the type code points to the conformal protective coating on the circuit boards. The datasheet lists 960 W, 1080 W and 1440 W output classes and a typical efficiency of 95.7 % at 400 V AC and 480 V AC.

Seven Star LLC supplies the QUINT4-PS/3AC/24DC/40/CO as an independent supplier in Muscat for projects in Oman and the GCC, quoted against the exact part number shown here.

Technical specifications of the QUINT4-PS/3AC/24DC/40/CO

How the QUINT4-PS/3AC/24DC/40/CO works

The QUINT4-PS/3AC/24DC/40/CO is a primary-switched converter: the mains input is rectified, power-factor corrected and chopped at high frequency, then transformed and rectified again to give an isolated, regulated DC output. The QUINT4 generation adds a selectable output characteristic, so the unit can be matched to the loads behind it. The Static Boost and Dynamic Boost values in the table show how much short-term current the unit can deliver above its nominal rating, which helps start motors, relay banks and capacitive loads without tripping. Signalling uses LEDs and configurable outputs, and the datasheet lists a signal relay or digital output depending on the type.

The supply accepts a wide three-phase input of 3 x 400 to 500 V AC, and also two-phase and DC options as listed. A selectable output characteristic, NFC configuration and Selective Fuse Breaking are included, as for the smaller single-phase units.

Where the QUINT4-PS/3AC/24DC/40/CO fits in a system

A QUINT4 supply sits at the head of a 24 V (or other DC) control circuit and feeds terminal blocks, electronic circuit breakers, redundancy modules and the loads themselves. Within the family, the same housing style and connection method repeat across sizes, so panel designers can swap power class without redesigning the layout. The datasheet note on mounting distances and derating matters when several units are installed side by side.

It is the unit to specify when a single 24 V DC source needs to feed a whole cabinet, a pump station or a drive system auxiliary distribution. Larger loads normally call for a separate electronic circuit breaker block downstream. For smaller current needs, the 20 A unit 2904622 is an alternative.

Selection and ordering checklist

• Confirm the nominal output voltage and that the adjustment range covers any voltage-drop compensation you need.
• Add up all loads and check that the continuous current is below the nominal output current of the QUINT4-PS/3AC/24DC/40/CO with a reserve.
• Check mains input range against the local supply, including DC input if you intend to use it.
• Compare the housing width with the free rail space in the cabinet.
• Check ambient temperature against the derating starting point listed in the table.
• Decide whether the signalling output or relay contact will be wired to a PLC.

Installation, commissioning and maintenance of the QUINT4-PS/3AC/24DC/40/CO

Mount the QUINT4-PS/3AC/24DC/40/CO on a 35 mm DIN rail in the position described on the datasheet, keep the listed clearances above, below and at the sides, and connect input, output and signal terminals with conductors within the stated cross-sections and tightening torques. Check the polarity and the setting of the output voltage before connecting sensitive loads, then confirm that the status LED signals a healthy output.

Because of the power class, plan cooling, cable cross-sections and input breaker size carefully. Check the 3-phase supply rotation and balance, and use the ratings in the datasheet for derating at higher ambient temperatures.

Typical applications in Oman and the GCC

In Oman and the GCC, control cabinets often run at high ambient temperatures, so the operating range and derating curve in the table are what decide whether a supply is suitable. These supplies are used in oil and gas skids, water treatment and desalination plants, power substations, petrochemical packages and building automation panels.

Three-phase supplies at this level fit large GCC process cabinets: gas compression, offshore topsides, power-plant control and large water pumping stations, especially where moisture or dust contamination makes coated boards a valuable feature.

Comparison with related QUINT POWER fourth-generation devices

Information to send with an RFQ

• Full part number QUINT4-PS/3AC/24DC/40/CO and quantity.
• Mains supply voltage, phases and frequency at site.
• Total connected load and the largest single load current including inrush.
• Cabinet temperature at the hottest point and the mounting altitude.
• Whether redundancy, parallel operation or a monitoring signal is needed.
• Delivery location and required date.

Documents and quotation

Send us the part number QUINT4-PS/3AC/24DC/40/CO and the quantity you need, and we will confirm which official documents are available for this device. Seven Star LLC is an independent supplier in Muscat and quotes for projects across Oman and the GCC; we do not act on behalf of the manufacturer.

Please also tell us the delivery location and required timeline so that availability can be checked before you commit to a project schedule.