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Brand: Phoenix Contact
Phoenix Contact TRIO-PS-2G/3AC/24DC/10 3-Phase Power Supply
Description
TRIO-PS-2G/3AC/24DC/10 three-phase power supply, 24 V DC 10 A
The TRIO-PS-2G/3AC/24DC/10 (item number 2903154) converts a 400 to 500 V AC three-phase supply into a stabilised 24 V DC output at 10 A, or 240 W, in a housing only 42 mm wide. It is part of the second-generation TRIO POWER range with push-in terminals and a dynamic boost of 15 A for five seconds. A distinguishing feature is that the nominal input range also covers two-phase operation between two conductors of a 400 to 500 V system, which gives flexibility where only two phases are available in a panel. Seven Star LLC supplies the TRIO-PS-2G/3AC/24DC/10 in Oman and the GCC as an independent supplier in Muscat, and this page lists what the manufacturer data sheet states.
Meaning of the TRIO-PS-2G/3AC/24DC/10 type code
TRIO-PS-2G identifies the TRIO POWER power supply of the second generation, 3AC the three-phase AC input, 24DC the 24 V DC output and 10 the nominal output current. The 10 A three-phase unit is slimmer than the single-phase TRIO-PS-2G/1AC/24DC/20 (42 mm against 68 mm), though it delivers 240 W instead of 480 W.
TRIO-PS-2G/3AC/24DC/10 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Phoenix Contact TRIO-PS-2G/3AC/24DC/10, item no. 2903154 |
| Nominal input voltage range | 3 x 400 V AC … 500 V AC (-20 % … +15 %); 2 x 400 V AC … 500 V AC (-10 % … +15 %) |
| Input voltage range | 3 x 320 V AC … 575 V AC; 2 x 360 V AC … 575 V AC |
| Current consumption | 3 x 0.6 A at 400 V AC and 500 V AC; 2 x 1.1 A for two-phase operation |
| Inrush current | ≤ 26 A typical; I2t 0.3 A2s; internal 3.15 A slow-blow input fuse |
| Mains buffering | > 10 ms at 400 V AC, > 20 ms at 500 V AC |
| Recommended fuse | 6 A … 16 A, characteristics B, C, D, K |
| Output voltage | 24 V DC ±1 %, adjustable 24 … 28 V DC |
| Output current | 10 A nominal; 15 A for 5 s |
| Efficiency | > 92 % at 400 V AC and nominal values |
| Residual ripple / rise time | ≤ 20 mVPP; ≤ 120 ms |
| Signaling | Green DC OK LED and floating contact, threshold UOUT < 0.9 x UN, 30 V AC/DC 100 mA |
| Ambient temperature | -25 °C … +70 °C; derating above 60 °C (2.5 %/K); start-up type tested -40 °C |
| MTBF (IEC 61709, SN 29500) | > 1,200,000 h at 40 °C |
| Dimensions / weight | 42 x 130 x 160 mm (W x H x D); 0.9 kg |
| Standards / approvals listed | EN 60204-1, EN 50178 (PELV), IEC 60950-1 (SELV), EN 50121-4, Semi F47-0706; UL 508 listed, UL 60950-1 recognised |
Three-phase and two-phase operation
On a regular three-phase network the TRIO-PS-2G/3AC/24DC/10 draws about 0.6 A per phase at 400 V AC, so a 6 A breaker is already generous. If a panel is fed from two phases of a 400 V system, the data sheet allows 2 x 400 to 500 V AC input at a narrower tolerance, with about 1.1 A per phase. This is useful in retrofit work and in some marine and generator arrangements, but the supply designer should check the tolerance, as the allowed deviation on two phases is -10 % to +15 % instead of -20 % to +15 %.
Output behaviour
The TRIO-PS-2G/3AC/24DC/10 holds its nominal 24 V DC output to ±1 %, and the setting can be raised to 28 V DC, with constant capacity restricted above 24 V as stated in the document. The dynamic boost of 15 A for five seconds starts coil banks and inrush-heavy modules. Residual ripple is stated as at most 20 mV peak to peak, and the rise time to 90 % is up to 120 ms. The output overvoltage limit is 30 V DC.
Related types and system fit
The TRIO-PS-2G/3AC/24DC/10 matches the TRIO-PS-2G/3AC/24DC/20 for a doubled output and the single-phase TRIO-PS-2G/1AC/24DC/20 and TRIO-PS-2G/1AC/24DC/10 for single-phase sites. For plants that require preventive monitoring and SFB, the QUINT4-PS/3AC/24DC/20 is the step up. Parallel operation for capacity or redundancy is allowed in the data sheet.
Selection checklist
- Confirm a 3 x 400 to 500 V AC (or 2 x 400 to 500 V AC) source and its tolerance.
- Sum the 24 V loads and keep the continuous demand below 10 A.
- Check the 15 A five-second boost against starting currents.
- Plan 42 mm of rail width and 160 mm depth.
- Use the recommended B, C, D or K breaker of 6 to 16 A upstream.
Installation and maintenance
Fit the TRIO-PS-2G/3AC/24DC/10 on a DIN rail, wire the push-in input (solid up to 4 mm², flexible up to 2.5 mm², strip length 10 mm), connect the output and the DC OK contact, and adjust the voltage while observing the load. In service, a green LED and a floating contact make it easy to detect a lost output; investigate the cause before replacing the unit, since a tripped upstream breaker or a missing phase is more common than an internal fault.
Typical applications in Oman and the GCC
The TRIO-PS-2G/3AC/24DC/10 and similar 240 W three-phase supplies are installed in pump control panels, motor starter cabinets, compressor control boxes, water treatment skids and electrical switchgear auxiliary circuits, where the 400 V network is already in the cabinet. The compact 42 mm width helps in crowded MCC compartments.
Information to send with an RFQ
- Full type designation or item number, and quantity
- Mains voltage and frequency at site, and whether the supply is AC, DC or three-phase
- Total load current including inrush and motor starting, plus any redundancy or parallel-operation requirement
- Ambient temperature range, altitude and cabinet ventilation
- Required approvals such as marine, hazardous-area or UL, and any project specification references
- Delivery location and required documents
Documents and quotation
The manufacturer data sheet for the TRIO-PS-2G/3AC/24DC/10 is attached to this page.
Send item number 2903154, quantity and delivery location to Seven Star LLC and request a quotation.
Other Models in the Pc Trio Ps 2g Range
Seven Star LLC supplies models from the Pc Trio Ps 2g range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Phoenix Contact TRIO-PS-2G/1AC/24DC/20 Power Supply 24 V 20 A | Power Modules | View details |
| Phoenix Contact TRIO-PS-2G/3AC/24DC/10 3-Phase Power Supply | Power Modules | You are viewing this model |
Datasheets & Documents
- Datasheet Phoenix Contact TRIO-PS-2G/3AC/24DC/10 Datasheet Download
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About brand
Phoenix Contact is a German, family-owned manufacturer of electrical connection technology and industrial automation, founded in 1923 in Essen by Hugo Knümann. It began as a sales company, and in 1928 Knümann developed the modular terminal block mounted on a rail, the product the company is still best known for. Phoenix Contact is headquartered in Blomberg, North Rhine-Westphalia.
Seven Star LLC lists Phoenix Contact surge protection, power supplies and safety relays, and sources these components by order number for panel builders and maintenance teams in Oman.
Phoenix Contact company profile
| Founded | 1923, Essen, Germany, by Hugo Knümann, as Phönix Elektro- und Industrie-Bedarfsgesellschaft |
|---|---|
| Headquarters | Blomberg, Germany |
| Ownership | Family-owned (Eisert and Stührenberg families) |
| Key invention | The modular terminal block on a DIN rail, 1928 |
| Product families | CLIPLINE terminal blocks, PCB terminals and connectors, QUINT and TRIO power supplies, relay modules, surge protection, signal conditioners, Ethernet switches and PLCnext controllers |
Milestones
- 1923: Hugo Knümann founds the company in Essen.
- 1928: The first modular terminal block is developed.
- Later: Headquarters move to Blomberg, Ostwestfalen-Lippe.
Phoenix Contact parts listed on this page
The TTC-6-2X1-24DC-UT (order number 2906799) is a surge protection device with screw connection for two 24 V DC signal wires that share a common reference potential. The QUINT-PS/1AC/24DC/10 is a single-phase DIN rail power supply delivering 24 V DC at 10 A. The PSR-SCP-24DC/ESP4/2X1/1X2 (order number 2981020) is a single-channel PSR safety relay for emergency stop and safety door monitoring, with two enabling current paths and plug-in screw terminals.
Phoenix Contact products we list
Ordering Phoenix Contact components: what we need
Phoenix Contact items are ordered by a seven-digit order number together with the type designation, both printed on the side of the module. Send both, plus the quantity. If the number is unreadable, send the type text and a photo. For power supplies, state input voltage, output current and whether the unit runs in parallel or with a redundancy module. For buyers in the GCC replacing an older unit, we check the manufacturer's documentation for the listed successor type.
Facts checked against Phoenix Contact's own company history (phoenixcontact.com), October 2026.
Browse Phoenix Contact products by category: Isolator & Barrier, Power Modules, Automation Accessories.
FAQ
Questions about the Phoenix Contact TRIO-PS-2G/3AC/24DC/10 3-Phase
Answers from our engineering team on installation, compatibility and integration.
01What input does the TRIO-PS-2G/3AC/24DC/10 accept?
A 3 x 400 to 500 V AC supply (-20 % to +15 %). The data sheet also allows a two-phase connection of 2 x 400 to 500 V AC (-10 % to +15 %).
02What output current is available?
24 V DC at 10 A nominal, with 15 A available for 5 seconds. The output voltage is adjustable up to 28 V DC.
03How wide is it?
The data sheet states 42 x 130 x 160 mm (width x height x depth) and 0.9 kg.
04What mains buffering does it have?
Mains buffering is greater than 10 ms at 400 V AC and greater than 20 ms at 500 V AC.
05What fuse should be used upstream?
The data sheet recommends 6 A to 16 A with characteristics B, C, D or K.
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