Triconex 8307A - Triple Redundant Power Supply Module for Triconex Safety Systems

Triconex 8307A – Triple Redundant Power Supply Module for Triconex Safety Systems

In stock

Product Introduction:
The Triconex 8307A is the power supply module for Triconex Safety Instrumented Systems. This board takes the raw DC power from the plant’s uninterruptible power supply (UPS) or battery bank and converts it into the precise, clean, and regulated voltages required by the Triconex CPU and all I/O modules. The “8307” identifies it as a power supply, and the “A” suffix indicates Series A hardware, the original and most widely deployed revision. The 8307A provides multiple output voltages (typically 5V DC, 3.3V DC, and 24V DC) with N+1 redundancy, meaning if one power supply fails, the other takes over instantly without any interruption to the safety function. Without this board, no other module in the Triconex rack can function.

Technical Specifications:
Board Type: Triple Redundant Power Supply Module
Model: 8307A (Series A)
Input Voltage: 125V DC or 250V DC (selectable via jumper)
Output Voltages: 5V DC at 10 Amps, 3.3V DC at 5 Amps, 24V DC at 2 Amps (for field I/O)
Ripple and Noise: Less than 50mV peak-to-peak on all outputs
Regulation: +/- 1% on all outputs
Efficiency: Greater than 85%
Redundancy: N+1 (one spare power supply supports the entire rack)
Protection: Over-voltage, under-voltage, over-current, short-circuit, over-temperature, and reverse polarity
Fan Redundancy: Dual internal fans with automatic failover
Operating Temperature: 0 to 60 degrees Celsius
Form Factor: Triconex standard module (typically 6U due to transformer size)
Power Consumption: Approximately 30 Watts (at full load)
Certifications: SIL 3, IEC 61508, ATEX, UL, CSA

Functional Features:
Clean Power Delivery: Uses high-frequency switching technology with extensive filtering to deliver ripple-free power to sensitive safety processors and I/O modules.
N+1 Redundancy: The rack can operate with one power supply failed; the remaining supply handles the entire load without derating.
Hot Swappable: Designed to be replaced while the safety system is running, ensuring zero downtime for power supply maintenance.
Voltage Supervision: Continuously monitors all output voltages and alarms if any voltage drifts outside the acceptable range.
Current Sharing: In redundant configurations, multiple power supplies share the load equally, extending component life.
Sequenced Startup: Controls the order in which voltages come up during system startup, preventing inrush currents that could damage modules.
Battery-Backed Operation: Provides clean power from the UPS battery bank during a plant blackout, ensuring the safety system remains operational for safe shutdown.