Description
ICS Triplex T8225
Technical Specifications & Performance Parameters:
- DC Input Range: 20 VDC ~ 30 VDC dual‑redundant input
- Nominal Input Voltage: 24 VDC
- DC Output: Regulated 24 VDC
- Rated Output Power: 250 W
- Maximum Output Current: 10.4 A
- Output Voltage Deviation: ±1 %
- Protection Mechanisms: Reverse‑polarity protection, over‑current protection, over‑voltage protection, over‑temperature protection, short‑circuit auto‑shut‑off
- Safety Certification: TÜV IEC 61508 SIL 3, UL, CE
- Operating Temperature: ‑20 °C ~ +60 °C
- Storage Temperature: ‑40 °C ~ +85 °C
- Ambient Humidity: 5 %‑95 % RH non‑condensing
- Weight: 2.00 kg
- Form Factor: Standard Trusted rack plug‑in module
Functional Features:
- Dual fully‑isolated DC input channels, automatic load‑sharing operation
- Support N+1 parallel redundant deployment, multi‑module active current sharing
- Hot‑swap support for online module replacement without rack power‑supply interruption
- Full‑coverage hardware diagnostics, detect input loss, output over‑load, reverse‑polarity fault and internal over‑temperature
- Front‑panel LED indicators display input channel status, output load status and fault‑alarm information
- Timestamped fault‑event upload to system fault historian via IMB backplane bus
- Short‑circuit auto‑recovery function after fault elimination
- Reinforced surge‑protection circuit, withstand transient voltage spikes from industrial DC power network
Working Principle: Two independent external 24 VDC power sources connect to T8225 dual input terminals. Internal power‑OR‑ing circuit merges redundant input power. Regulator circuit outputs stable 24 VDC power to rack backplane power rail. When multiple T8225 modules run in parallel, active current‑sharing logic evenly distributes total rack load current. Internal monitoring circuit continuously samples electrical and thermal parameters. Fault condition triggers hardware protection and timestamped fault‑alarm output. Single DC input path or single power‑module failure under N+1 setup cannot interrupt rack power‑supply output.
Material Composition & Structural Characteristics:
- Housing: Heavy‑duty die‑cast aluminum alloy shell, enhance heat‑dissipation and anti‑vibration performance
- Circuit substrate: Multi‑layer FR‑4 power‑grade industrial printed circuit board, integrate high‑current power semiconductor components
- Backplane connector: Gold‑plated high‑density anti‑vibration industrial connector
- Front panel: Flame‑retardant PC engineering plastic with LED indicator window, IP20 protection grade
- Plug‑in card‑type structure for Trusted rack dedicated power‑supply‑slot installation
Installation Requirements:
- Insert T8225 module into dedicated power‑supply slot of Trusted main or expander rack chassis, fasten front‑panel locking screws
- Dual DC input connect to two independent upstream 24 VDC power‑supply units
- For N+1 redundant configuration, complete accurate total‑load calculation before confirming module quantity
- DC power wiring adopt shielded power cables, separate routing from high‑voltage AC power wiring
- Cabinet protective ground resistance ≤4 Ω
- Maintain sufficient air‑flow clearance around modules for heat dissipation
- Avoid installation environment with corrosive gas and continuous strong mechanical shock
Application Scenarios:
- Medium‑and‑large‑size Trusted I/O expander rack redundant DC power distribution
- Petrochemical ESD system large‑quantity field instrument loop power supply
- Fire‑gas safety system multi‑detector and actuator power feeding
- Chemical plant large‑scale safety‑interlock cabinet DC power‑supply unit
- Off‑shore platform heavy‑load distributed I/O rack power source
Usage Notes:
- Hot‑swap operation only allowed when remaining redundant modules can fully bear total rack load
- Module shell disassembly is forbidden; no field‑serviceable internal spare parts
- Strictly prevent reverse‑polarity DC input connection during wiring work
- After module replacement, verify dual‑input switching performance, parallel current‑sharing effect and all diagnostic‑functions
- Operate strictly within rated operating temperature range
- Periodically inspect DC input terminal fastening torque and cabinet ventilation condition
