48VDC Panel Power Solution — PHOENIX CONTACT TRIO-PS/1AC/48DC/5 | TRIO-PS Series
Where This Product Is Used
The PHOENIX CONTACT TRIO-PS/1AC/48DC/5 (Order No. 2866491) is a compact, single-phase DIN rail power supply delivering a regulated 48 VDC / 5 A output. It is routinely specified in the following industrial environments:
- PLC Control Panels — Provides stable 48 VDC bus power for Siemens S7, Allen-Bradley CompactLogix, Mitsubishi MELSEC, and Omron NX/NJ controllers where 48 V I/O or fieldbus nodes are required.
- Process Automation & DCS Cabinets — Powers 48 V transmitters, HART field devices, and intrinsically safe barriers in oil & gas, chemical, and water-treatment plants.
- Telecommunications & Network Racks — Supplies 48 VDC to PoE switches, managed Ethernet switches, and industrial routers inside control rooms.
- Building Automation (BAS/BMS) — Feeds 48 V actuators, VAV controllers, and BACnet/IP gateways in HVAC and smart-building installations.
- Machine Safety Systems — Energizes 48 V safety relays, light curtains, and emergency-stop circuits in accordance with IEC 62061 / ISO 13849 architectures.
- Semiconductor & Electronics Manufacturing — Delivers clean, low-ripple 48 V to test fixtures, pick-and-place machines, and conveyor drives.
Technical Specifications
| Parameter | Value |
|---|---|
| Order Number | 2866491 |
| Model | TRIO-PS/1AC/48DC/5 |
| Input Voltage | 85 – 264 VAC / 90 – 350 VDC (wide-range) |
| Input Frequency | 45 – 65 Hz |
| Output Voltage | 48 VDC (adjustable 45 – 56 V) |
| Output Current | 5 A nominal |
| Output Power | 240 W |
| Efficiency | ≥ 91 % (typical at full load) |
| Ripple & Noise | < 150 mV pk-pk |
| Inrush Current | < 20 A (cold start, 230 VAC) |
| Hold-Up Time | ≥ 20 ms at full load |
| Mounting | 35 mm DIN rail (EN 60715) |
| Protection Class | IP20 |
| Operating Temperature | −25 °C to +70 °C |
| Storage Temperature | −40 °C to +85 °C |
| Relative Humidity | 5 – 95 % (non-condensing) |
| MTBF | > 500,000 h (MIL-HDBK-217F) |
| Dimensions (W × H × D) | 45 × 130 × 125 mm |
| Weight | approx. 400 g |
| Certifications | CE, UL 508, cULus, GL, ATEX Zone 2 |
Why Engineers Specify This Model
- Wide-Range AC/DC Input — Accepts 85–264 VAC and 90–350 VDC, making it suitable for global deployments without input-voltage re-configuration.
- Active Power Factor Correction (PFC) — Reduces harmonic distortion on the supply network, protecting sensitive instrumentation in the same panel.
- SFB Technology (Selective Fuse Breaking) — Delivers up to 200 % rated current for 12 ms to reliably blow downstream fuses without nuisance tripping the PSU.
- Parallel Redundancy Ready — Two units can be paralleled with PHOENIX CONTACT redundancy modules (e.g., TRIO-DIODE) for N+1 architectures without external diodes.
- Integrated DC-OK Relay Contact — Provides a potential-free signal for PLC monitoring or alarm annunciation when output voltage falls out of tolerance.
- Compact 45 mm Width — Saves valuable panel real estate compared to conventional 60–70 mm units of equivalent power rating.
- Conformal-Coated PCB Option — Available in coated variant for high-humidity or coastal environments.
Complete System Bill of Materials
For a fully engineered 48 VDC distribution panel, engineers typically pair this PSU with:
- Redundancy Module — PHOENIX CONTACT TRIO-DIODE/12-24DC/2X10/1X20 (2866612) for N+1 redundancy
- Buffer Module — PHOENIX CONTACT TRIO-BUFFER/12-24DC/5 for ride-through during brief mains interruptions
- DIN Rail Terminal Blocks — PHOENIX CONTACT UK 6 N (3044120) or equivalent 48 V-rated terminals
- Miniature Circuit Breakers — 48 VDC-rated MCBs (e.g., Eaton FAZ-C series) for branch circuit protection
- Surge Protection Device — PHOENIX CONTACT TRABTECH PT 2X2-48DC-ST (2856190) for transient suppression
- DC-OK Signal Relay — Integrated; external relay module optional for remote SCADA annunciation
- DIN Rail — 35 mm × 7.5 mm steel rail, EN 60715 compliant, minimum 300 mm length
Compliance & Industry Standards
- CE Marking — Low Voltage Directive 2014/35/EU; EMC Directive 2014/30/EU
- UL 508 / cULus — Industrial Control Equipment (North American market)
- IEC 60950-1 / IEC 62368-1 — Safety of information technology and audio/video equipment
- EN 61000-4 Series — EMC immunity (ESD, EFT/Burst, Surge, Conducted RF)
- ATEX II 3 G Ex nA IIC T4 Gc — Zone 2 hazardous area approval
- GL (Germanischer Lloyd) — Marine and offshore applications
- RoHS 2011/65/EU — Restriction of hazardous substances compliant
Quality Assurance & Sourcing
Konmask.com sources PHOENIX CONTACT components exclusively through authorised distribution channels and verified industrial surplus networks. Every unit undergoes the following before dispatch:
- Visual inspection for label authenticity, date codes, and housing integrity
- Functional power-on test: output voltage verification at no-load and 50 % load
- DC-OK contact continuity check
- Anti-static packaging with humidity indicator card
- Traceable lot documentation available on request
All products are shipped with original manufacturer packaging where available. Refurbished or surplus units are clearly labelled and priced accordingly.
How to Source This Part
- In Stock — Add to cart and check out directly. Orders placed before 14:00 CST ship same business day.
- Bulk / Project Quantity — Contact support@konmask.com for volume pricing and lead-time commitment.
- Urgent / Emergency — Call or WhatsApp +0086 19859288691 for same-day quotation and expedited freight options.
- Cross-Reference — This unit is also referenced as: 2866491, TRIO PS 1AC 48DC 5, TRIOPS1AC48DC5.
- Export & Customs — We handle export documentation, HS code classification, and commercial invoices for international shipments.
Application-Specific FAQ
Q: Can this PSU power a 48 V PoE switch directly?
A: Yes. The 48 VDC / 5 A output (240 W) is compatible with IEEE 802.3af/at PoE switches rated up to 240 W total PoE budget. Verify the switch’s input voltage tolerance (typically 44–57 VDC).
Q: Is it suitable for ATEX Zone 1 hazardous areas?
A: No. The TRIO-PS/1AC/48DC/5 carries ATEX Zone 2 (Ex nA) approval only. For Zone 1, specify a certified Ex d or Ex e enclosure with an appropriate internal PSU.
Q: Can two units be paralleled for 10 A output?
A: Yes, with the PHOENIX CONTACT TRIO-DIODE redundancy module. Direct paralleling without a diode module is not recommended as it may cause current-sharing instability.
Q: What is the derating at high ambient temperature?
A: Full 5 A output is available up to +60 °C. Above +60 °C, derate linearly to 2.5 A at +70 °C (50 % derating per 10 °C above 60 °C).
Q: Does it support 24 VDC input from a battery-backed bus?
A: No. The DC input range is 90–350 VDC. For 24 VDC battery backup integration, use a separate DC/DC converter upstream.
Q: What is the warranty?
A: Konmask.com provides a 12-month warranty on all new units. Surplus/refurbished units carry a 90-day functional warranty. Extended warranty available on request.
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Contact: support@konmask.com | +0086 19859288691
