PHOENIX TRIO-DIODE/12-24DC/2X10/1X20 2866514 Redundancy Diode Module | Replacement, Equivalent & Selection Guide
The PHOENIX TRIO-DIODE/12-24DC/2X10/1X20 (Part No. 2866514) is a high-performance redundancy diode module from Phoenix Contact, designed to decouple two power supply units and combine their outputs into a single redundant 12–24 V DC bus. It supports 2×10 A input channels and 1×20 A output, making it ideal for safety-critical industrial control systems where uninterrupted power is mandatory.
Technical Specifications
- Manufacturer: Phoenix Contact
- Part Number: 2866514
- Model: TRIO-DIODE/12-24DC/2X10/1X20
- Function: Redundancy decoupling diode module
- Input Voltage: 12–24 V DC
- Input Channels: 2 × 10 A
- Output Current: 1 × 20 A (max)
- Voltage Drop: ≤ 0.5 V (typical, at full load)
- Mounting: DIN rail (35 mm)
- Protection Class: IP20
- Operating Temperature: −25 °C to +70 °C
- Dimensions (W×H×D): Approx. 45 × 130 × 125 mm
- Weight: Approx. 400 g
- Certifications: CE, UL, cULus
- Standards: IEC 60950, EN 61000
Compatible Replacement & Equivalent Models
If the TRIO-DIODE/12-24DC/2X10/1X20 is unavailable or you are evaluating alternatives, the following models offer compatible or equivalent functionality:
- Phoenix Contact TRIO-DIODE/12-24DC/2X10/1X20 (2866514) — Original OEM unit (this product)
- Phoenix Contact QUINT-DIODE/12-24DC/2X10/1X20 — Higher-spec QUINT series equivalent with enhanced diagnostics
- Weidmüller PRO MAX 20A Redundancy Module — Third-party DIN rail compatible alternative, 24 V DC / 20 A output
- PULS YR40.241 — Redundancy module for 24 V DC systems, 40 A max, suitable for higher-load replacements
- Murrelektronik 85601 — 24 V DC redundancy decoupling module, DIN rail mount, CE certified
- Siemens SITOP SNT 6EP1961-2BA21 — Redundancy module for SITOP power supplies, compatible in 24 V DC architectures
Note: Always verify voltage, current rating, and connector compatibility before substituting. Contact Konmask for application-specific guidance.
Why Choose the Original Model
- Guaranteed OEM compatibility — Designed and tested specifically for Phoenix Contact TRIO-POWER supply series
- Minimal voltage drop — Schottky diode technology ensures ≤ 0.5 V drop, preserving downstream device performance
- Plug-and-play redundancy — No additional configuration required; automatic failover between two PSU inputs
- Proven reliability — Widely deployed in process automation, machine control, and critical infrastructure globally
- Full certification compliance — CE, UL, cULus markings for global deployment
Typical Applications
- PLC and DCS control panel power redundancy
- Industrial automation lines requiring 24/7 uptime
- Oil & gas, chemical, and water treatment plant control systems
- Railway signaling and transportation infrastructure
- Building automation and HVAC control panels
- Machine safety circuits requiring uninterrupted DC power
System Compatibility
The TRIO-DIODE/12-24DC/2X10/1X20 is compatible with the following Phoenix Contact power supply families and broader system architectures:
- Phoenix Contact TRIO-POWER series (primary pairing: TRIO-PS/1AC/24DC/10 and similar)
- Phoenix Contact QUINT-POWER series (with appropriate current matching)
- Any 12–24 V DC DIN rail power supply with ≤ 10 A per channel output
- Siemens S7-300/400/1500 PLC power distribution panels
- Rockwell Allen-Bradley ControlLogix / CompactLogix 24 V DC bus architectures
- Schneider Electric Modicon M340/M580 control cabinets
- Beckhoff CX/EK series DIN rail systems
Selection Guide
Use the following criteria to confirm this model is the right choice — or to identify the best alternative:
- Step 1 — Voltage: Confirm your system bus is 12 V DC or 24 V DC. This module supports both.
- Step 2 — Current per channel: Each input channel supports up to 10 A. If your PSU output exceeds 10 A per unit, consider the QUINT-DIODE series (up to 20 A/channel).
- Step 3 — Total load current: Maximum combined output is 20 A. For loads exceeding 20 A, parallel modules or a higher-rated unit is required.
- Step 4 — Number of PSU inputs: This module accepts exactly 2 PSU inputs. For 3-way redundancy, contact Konmask for custom configuration advice.
- Step 5 — Mounting: Confirm 35 mm DIN rail availability and sufficient panel depth (≥ 125 mm).
- Step 6 — Certifications: For UL-listed panels in North America, confirm cULus marking is required — this model qualifies.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Each module inspected for physical integrity, label authenticity, and functional condition prior to shipment
- Original manufacturer packaging preserved where available
- Traceability documentation (COO, batch records) available upon request for regulated industries
- Warranty: 12 months from date of shipment (defects in materials and workmanship)
How to Order
- Online: Add to cart directly on this page — stock availability shown in real time
- Email RFQ: Send part number, quantity, and required delivery date to [email protected]
- Phone/WhatsApp: +0086 19859288691 (Mon–Fri, 09:00–18:00 CST)
- Bulk / OEM orders: Volume pricing available for orders of 5+ units — contact us for a formal quotation
- Lead time: In-stock orders ship within 1–3 business days; ex-stock lead time quoted per inquiry
Replacement & Compatibility FAQ
Q: Can I use the TRIO-DIODE/12-24DC/2X10/1X20 with a 24 V / 5 A power supply?
A: Yes. The 10 A rating is the maximum per channel; the module operates correctly at lower currents.
Q: Is this module a direct drop-in replacement for the QUINT-DIODE/12-24DC/2X10/1X20?
A: Functionally equivalent for most applications. The QUINT variant adds active current balancing and diagnostics. Verify your panel wiring and DIN rail space before substituting.
Q: What happens if one PSU fails?
A: The diode module automatically isolates the failed PSU and the remaining unit continues to supply the full load — no manual intervention required.
Q: Do you supply original Phoenix Contact units or compatible alternatives?
A: We supply original Phoenix Contact units (OEM). Compatible alternatives are listed above for reference and are available upon request.
Q: Can this module be used in a 48 V DC system?
A: No. This model is rated for 12–24 V DC only. For 48 V DC redundancy, please contact us for an alternative recommendation.
Q: Is a datasheet available?
A: Yes — contact [email protected] to request the official Phoenix Contact datasheet and installation guide.
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Contact: [email protected] | +0086 19859288691
