Phoenix Contact TRIO-PS-2G/1AC/24DC/10 Power Supply, 24 V DC 10 A

Overview

The Phoenix Contact TRIO-PS-2G/1AC/24DC/10 (item number 2903149) is a primary-switched TRIO POWER supply from the second generation of the range, designed for DIN rail mounting with push-in connection technology. The Phoenix Contact TRIO-PS-2G/1AC/24DC/10 converts a single-phase 100 to 240 V AC supply, or 110 to 250 V DC, into a regulated 24 V DC output with 10 A nominal current and 240 W of output power. Phoenix Contact describes TRIO POWER as the range with standard functionality, tailored to machine building and to cabinets where a rugged, compact and cost-effective 24 V DC source is needed.

Seven Star LLC supplies the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 to machine builders, system integrators and plant maintenance departments in the Sultanate of Oman and throughout the GCC. Our team provides model selection support from Muscat to help match the power supply to the load and the cabinet conditions.

Design and Operating Principle

In general terms, a switched-mode supply rectifies the mains, chops it at high frequency through a small transformer and regulates the secondary voltage with a feedback loop. The Phoenix Contact TRIO-PS-2G/1AC/24DC/10 follows this principle with a U/I output characteristic that includes a dynamic load reserve. The nominal output voltage is 24 V DC ±1 %, adjustable from 24 to 28 V DC with constant capacity, so voltage drop on long cable runs can be compensated. Efficiency is above 91 % at 230 V AC and nominal values, and the maximum no-load power dissipation is below 5.1 W.

The aluminum housing of the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 (AlMg3) with polycarbonate hood measures only 42 mm wide, 130 mm high and 160 mm deep. Because the data sheet allows 0 mm spacing to the left and right at up to 40 °C ambient, several units of the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 can be lined up side by side, saving rail space in crowded panels. Above and below, 50 mm clearance is specified for convection cooling.

Dynamic Boost for Demanding Loads

The Phoenix Contact TRIO-PS-2G/1AC/24DC/10 supplies 15 A for 5 seconds through its Dynamic Boost, 150 % of the nominal current. This reserve allows loads with high inrush, such as contactor coils, small DC motors, solenoid valves and capacitive input stages, to start reliably without oversizing the supply. The Phoenix Contact TRIO-PS-2G/1AC/24DC/10 is short-circuit-proof and no-load proof, its overvoltage protection limits the output to 30 V DC maximum, and the feedback voltage resistance is up to 35 V DC. Residual ripple is below 10 mVpp at nominal values, a low figure that suits sensitive electronics and analog signal circuits.

Parallel connection of the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 is permitted for redundancy and increased capacity, and series connection is also possible. As general practice, redundant configurations should use a redundancy module or decoupling diodes so that a faulty unit cannot pull down the common DC bus.

Signalling and Status

On the Phoenix Contact TRIO-PS-2G/1AC/24DC/10, a green DC OK LED lights when the output voltage exceeds 0.9 times the nominal value, and a floating signal contact 13/14 switches under the same condition. The contact is rated for a maximum of 30 V AC/DC and 100 mA continuous load current, so it can be wired directly to a PLC digital input to raise an alarm if the 24 V DC supply drops. This simple status signalling is typical of the TRIO range and is sufficient for most machine and process cabinets.

Key Features

• Input 100 to 240 V AC (−15 to +10 %) or 110 to 250 V DC (±10 %).
• Output 24 V DC ±1 %, adjustable 24 to 28 V DC, 10 A nominal and 240 W.
• Dynamic Boost of 15 A (360 W) for 5 seconds.
• Push-in connection for input, output and signal terminals, saving wiring time.
• Narrow 42 mm housing, alignable with 0 mm lateral spacing up to 40 °C.
• Operating range −25 to +70 °C with derating above 60 °C and start-up at −40 °C.
• MTBF above 1,800,000 h at 25 °C according to IEC 61709 and SN 29500.
• DC OK LED and floating signal contact 13/14.

Applications in Oman and the GCC

Typical uses for the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 include 24 V DC supply for PLCs and remote I/O, packaging and process machinery, conveyor and pump skids, HVAC control panels and building automation cabinets. In the GCC, where cabinets can operate in high ambient temperatures, the derating curve and the 70 °C upper operating limit stated by Phoenix Contact are useful planning figures. The UL ANSI/ISA-12.12.01 Class I, Division 2 listing and the EN 45545-2 HL3 rail fire protection rating in the data sheet extend its use to selected hazardous-location and transport applications, within the certificate conditions.

For applications needing advanced monitoring or SFB selective tripping, the Phoenix Contact QUINT-PS/1AC/24DC/10 power supply is an alternative, while the Weidmuller PRO MAX 180W 24V 7.5A power supply covers smaller loads. For field signal protection, the Phoenix Contact TTC-6-2X1-24DC-UT surge protector is also available from Seven Star LLC.

Technical Specifications

The following data for the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 is taken from the Phoenix Contact product data sheet for item 2903149.

Installation Notes

Mount the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 on a horizontal NS 35 DIN rail to EN 60715. Phoenix Contact recommends a 6 to 16 A breaker of characteristic B, C, D or K for input protection. The push-in terminals of the Phoenix Contact TRIO-PS-2G/1AC/24DC/10 accept stripped conductors or ferrules without tools, which shortens wiring time during panel assembly. As general guidance, keep the 50 mm vertical clearance free from cable ducts that block airflow, especially in hot climates.

How to Order

To request a quotation for the Phoenix Contact TRIO-PS-2G/1AC/24DC/10, send your quantity and application details to the Seven Star LLC automation team. We provide model selection support from Muscat, can share the manufacturer data sheet and support machine and panel projects across Oman and the GCC.