Description
📌 Product Overview
The TRICONEX 8312 is a 230 VAC power module designed for the Tricon safety and critical control system platform. It converts incoming AC power into regulated DC power for the chassis backplane and installed processor, communication, and I/O modules.
Each compatible Tricon chassis can use redundant power modules, and either power module is capable of supporting the chassis at full rated load when operating within specified conditions. The power module can also be replaced online as part of the system’s power redundancy architecture.
The 8312 is specifically the 230 VAC version of the Tricon power module family. It should not be confused with the 8310, which is designed for 120 VAC/VDC applications, or the 8311, which operates from 24 VDC.

⚙️ Key Features
🔹 230 VAC Tricon chassis power module
🔹 Designed for Main, Expansion, and RXM chassis
🔹 175 W output capacity
🔹 Regulated 6.5 VDC output
🔹 Maximum output current of 27 A at 60°C ambient
🔹 Input-to-output electrical isolation
🔹 Supports redundant chassis power architecture
🔹 Online replacement capability in compatible redundant systems
🔹 PASS, FAULT, ALARM, TEMP, and BATT LOW diagnostics
🔹 Over-temperature monitoring
🔹 Alarm contact support
🔹 Designed for critical industrial control applications
📋 Product Datasheet
🏷️ Brand: TRICONEX
🔢 Model: 8312
📚 Series: Tricon Safety and Critical Control System
🧩 Product Name: Power Module
⚡ Nominal Input Voltage: 230 VAC
🔌 AC Input Range: 185–285 VAC
📡 Input Frequency: 47–63 Hz
⚙️ Input Power Requirement: Minimum 240 W per power module
🔋 Typical Input Current: Approximately 0.4 A
⚡ Maximum Steady-State Input Current: 1.2 A
🚀 Maximum Inrush Current: 18 A at 230 VAC
🛡️ Input Fuse: 2.5 A Time-Delay
🔌 Output Voltage: 6.5 VDC ±1%
⚡ Maximum Output Current: 27 A at 60°C ambient
🔋 Output Power: 175 W at 60°C ambient
⏱️ Output Hold Time: Minimum 20 ms
🔒 Input-to-Output Isolation: 1,000 VAC or 1,500 VDC
📊 Typical Power Factor: 0.70
🌡️ Over-Temperature Warning: Internal temperature monitor
🖥️ Diagnostic Indicators: PASS, FAULT, ALARM, TEMP, BATT LOW
🏭 Compatible Chassis: Main Chassis / Expansion Chassis / RXM Chassis
⚠️ ATEX Note: The 8312 should not be used where the Tricon installation must meet the specified ATEX hazardous-location requirement; the documented alternative uses the 8311 with an appropriate certified external 24 VDC supply.
🏭 Typical Applications
⚡ Safety Instrumented Systems
The 8312 is used in Tricon safety systems where reliable power delivery is required for processor and I/O operation.
🏭 Process Control Facilities
It can be found in installed Tricon systems used in refineries, petrochemical plants, chemical facilities, and other continuous-process industries.
🛢️ Oil and Gas Applications
Suitable for existing Tricon installations supporting emergency shutdown, process protection, and critical control functions.
🔄 Redundant Power Systems
Two compatible power modules can be installed to provide a redundant power arrangement for the Tricon chassis.
🛠️ Maintenance and Spare Parts
The 8312 is commonly used as a replacement spare when maintaining existing Tricon controller installations.
🔧 Installation and Replacement Notes
🔧 Confirm that the existing power module is model 8312 before replacement.
🔧 Verify that the available incoming power supply is within the 185–285 VAC range.
🔧 Check that the system requires the 230 VAC version rather than the 8310 or 8311.
🔧 Inspect the chassis power-module position and backplane contacts.
🔧 Verify protective-earth and incoming AC wiring before energizing the module.
🔧 Check the redundant power configuration if two power modules are installed.
🔧 Observe the PASS, FAULT, ALARM, TEMP, and BATT LOW indicators after installation.
🔧 Verify alarm contacts and system diagnostics.
🔧 Follow the approved plant safety procedure before servicing a safety-related Tricon system.
⚠️ The 8312 should only be installed in a compatible Tricon chassis and with the correct 230 VAC power configuration. Input-voltage variants should not be substituted without confirming the complete system power architecture.
❓ FAQ
Q: What is the TRICONEX 8312?
A: It is a 230 VAC power module designed to supply regulated DC power to compatible Tricon system chassis.
Q: What input voltage does the 8312 require?
A: The nominal input voltage is 230 VAC, with a documented operating input range of 185–285 VAC.
Q: What output voltage does it provide?
A: The module provides a regulated 6.5 VDC output with ±1% regulation.
Q: What is the maximum output power?
A: The 8312 is rated for 175 W output at an ambient temperature of 60°C.
Q: Can the 8312 operate in a redundant configuration?
A: Yes. The Tricon power architecture supports two chassis power modules, with either module capable of supporting the chassis under the specified rated conditions.
Q: Can the power module be replaced online?
A: In the documented Tricon redundant power architecture, each power module can be replaced online. Site procedures and system operating conditions should always be followed.
Q: What diagnostic indicators are available?
A: The documented indicators are PASS, FAULT, ALARM, TEMP, and BATT LOW.
Q: What is the difference between 8310, 8311, and 8312?
A: The main difference is the input-power configuration. The 8310 is designed for 120 VAC/VDC, the 8311 for 24 VDC, and the 8312 for 230 VAC applications.
Q: Is the 8312 suitable for ATEX-required hazardous locations?
A: The Tricon documentation specifically warns against using the 8312 where the system must meet the stated ATEX hazardous-location requirement.
Q: What should be checked before purchasing a replacement?
A: Verify the complete model number, chassis type, input voltage, redundant power configuration, electrical wiring, system requirements, and physical condition.
🔄 Other TRICONEX Models You May Also Need
- TRICONEX 8310 – 120 VAC/VDC Power Module
- TRICONEX 8311 – 24 VDC Power Module
- TRICONEX 8312 – 230 VAC Power Module
- TRICONEX 3008 – Main Processor Module
- TRICONEX 3501E – Digital Input Module
- TRICONEX 3564 – Digital Input Module
- TRICONEX 3604E – Digital Output Module
- TRICONEX 3805E – Analog Output Module
- TRICONEX 4351B – Communication Module
- TRICONEX 4329G – Network Communication Module
🏷️ Recommended Short Title
TRICONEX | 8312 | 230VAC 175W Power Module
