Component Snapshot At-a-Glance
- Model: Triconex 4107
- Alt. P/N: None
- Product Series: Tricon Classic / Trident TMR SIS Platform
- Hardware Type: AC to DC Power Supply Module
- Key Feature: Hot-swap capable, N+1 redundant operation with overvoltage/overcurrent protection
- Primary Field Use: Converts mains AC to regulated 24VDC to power Tricon chassis, I/O and processor modules.
Hard-Numbers: Technical Specifications
- Input Voltage: 85–264 VAC, 47–63 Hz
- Output Voltage: 24 VDC regulated
- Output Current: 12 A continuous per unit
- Operating Temperature: 0°C to +60°C
- Isolation Rating: 1500VAC input-to-output isolation
- Power Draw (Input): Max 380 VA
- Efficiency: 86% typical at full load
- Cooling: Internal convection cooling, no fan
- Humidity Rating: 5% to 95% non-condensing
- Certification: SIL3 rated, TÜV, UL, CE
The Real-World Problem It Solves
Single power supplies create a full system outage when they fail. Unregulated voltage and lack of surge protection damage sensitive SIS modules during mains fluctuations.Where you’ll typically find it:
- Main Tricon chassis in refinery ESD control rooms
- Offshore platform F&G racks requiring redundant power feeds
- Power plant turbine protection SIS cabinets with dual AC sourcesThis module runs in parallel redundancy, maintains stable 24VDC output and lets technicians replace a failed unit without shutting down the safety system.
Hardware Architecture & Under-the-Hood Logic
This is an active switched-mode power supply with built-in protection circuits, designed for parallel redundant rack operation.
- Mains AC enters through filtered input stage to block line noise and surges.
- Internal rectifier and converter steps AC down to regulated 24VDC.
- Overcurrent, overvoltage and overtemperature circuits monitor output continuously.
- Parallel load sharing circuitry syncs output with other 4107 units in the same chassis.
- DC output feeds the main backplane distribution bus for all installed modules.
- Front panel LEDs show input power, DC output and fault status at a glance.
Field Service Pitfalls: What Rookies Get Wrong
Mixing Different Power Supply Models in ParallelInstalling 4107 alongside older power supply models breaks load sharing. One unit overheats and trips on overload.
- Field Rule: Use only matching 4107 units for redundant pairs. Do not mix part numbers in the same chassis.
Blocking Ventilation SlotsStacking cables or tools against module vents restricts airflow. Internal temperature rises and triggers thermal shutdown.
- Quick Fix: Keep all top and side vents clear. Maintain minimum 25 mm clearance around each power supply.
Ignoring Input Phase and Ground PolarityReversed AC ground or loose wiring causes unstable DC output and intermittent fault alarms. Poor grounding also raises shock hazard.
- Field Rule: Verify line, neutral and earth connections before applying power. Torque terminal screws to rated value.
Commercial Availability & Pricing Note
Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.
