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The T8270 is a 24 Vdc rack-mounted fan tray assembly comprising four fans mounted vertically at the rear of a 2U high chassis. The chassis incorporates an internal baffle to prevent air drawn by the fans flowing through the module chassis located immediately above the assembly. Air exhausted into the rear of the system cabinet is drawn upwards and out of the enclosure by roof-mounted ventilation units.
Simple installation and connection
Capable of moving 69 m3/h (40.6 ft3/min)
Low noise (32 dB per fan）
The power configuration utilizes dual 24 Vdc supplies where the fans are powered in pairs via 250 mA anti-surge fuses and the 0 V return link connects to terminal block TB1. Each individual fan displaces 69 cubic meters of air per hour when operating at a nominal rotor speed of 3100 rpm. Electronic protection sub-circuits provide reverse polarity and electrical overload shutdown for each fan unit. Regarding the system electrical interconnection layout, the main supply derives from a T8292 power distribution unit miniature circuit breaker via a TC-011-01 fan power cable. A single T8292 miniature circuit breaker accommodates a maximum configuration of five fan tray assemblies or a combined configuration including a roof fan unit.
T8270 executes forced convection thermal management within the Trusted module chassis. The steel enclosure utilizes a standard 19-inch rack-mount horizontal profile secured directly to the vertical mounting rails of the system cabinet via fastening bolt holes on both sides of the front panel. The four vertically arranged brushless DC fans connect via hardware pins to internal open-collector fault monitoring circuitry. This monitoring network continuously samples the physical rotational velocity of each rotor. When any single fan experiences a mechanical stall or bearing wear causing the velocity to drop below the rated threshold value, the fault circuit automatically activates a red LED indicator on the front panel and transmits a discrete alarm dataset to the host safety controller via base auxiliary signal contacts.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
ICS Triplex T8270 Fan Assembly Rack Mounted Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Provides critical cooling infrastructure for Emergency Shutdown (ESD) and Fire and Gas (F&G) systems deployed on deepwater offshore drilling platforms, mega-refineries, and LNG storage terminals.
Nuclear Power
Guarantees that the temperature of hardware within nuclear reactor core control rooms, reactor protection systems, and coolant circulation pump monitoring cabinets stays strictly within optimal semiconductor operational limits.
Metallurgical & Steel Blast Furnace Control
Delivers a 24/7 heat dissipation barrier for safety redundant control boxes located near blast furnace blowers and converter gas recovery lines where extreme airborne dust and radiant heat are present.
Air Separation & Industrial Gas Manufacturing
Performs precise inner-rack thermal convection management for TMR redundant controllers managing multi-stage centrifugal main air compressors in mega air separation plants producing high-purity liquid oxygen and nitrogen.
Large-Scale Pharmaceutical
Dissipates heat for safety-isolated grade control racks ruling industrial bioreactors and high-risk vaccine cultivation lines where accidental contamination or overpressure incidents are strictly forbidden.
During the operation of the T8270, critical attention must be paid to ensuring that the dual 24 Vdc redundant power sources are wired completely independently to prevent a single point of power failure from interrupting the cooling. Additionally, air intake dust filters must be cleaned or replaced regularly to avoid increased wind resistance and fan motor overloading from dust accumulation. When performing online hot-swapping for replacement, minimize the operational duration to prevent excessive localized thermal buildup on core system modules due to prolonged loss of forced airflow.
Alternative Names
Alternative Names
T827O
Technical notes
Technical notes
The ICS Triplex Trusted T8270 is a 24 Vdc rack-mounted, dual-redundant forced-air cooling fan assembly designed specifically for Rockwell Trusted TMR systems to deliver highly efficient thermal management via high-static-pressure directional airflow. The device supports seamless online hot-swapping and integrates intelligent monitoring circuitry, providing an uninterrupted, safety-grade cooling barrier under harsh industrial environments.
The T8270 is a 24 Vdc rack-mounted fan assembly designed specifically for the ICS Triplex Trusted Triple Modular Redundant (TMR) critical control system by Rockwell Automation. It provides forced-air cooling to protect sensitive electronic modules within the chassis.
Which system category does the T8270 belong to?
It belongs to the Programmable Logic Controller (PLC) systems category, more specifically inside industrial Safety Instrumented Systems (SIS / Safety PLCs) used for high-safety, high-availability industrial applications.
What is the primary purpose of the T8270?
Its primary purpose is to establish a continuous vertical airflow through the chassis to dissipate heat generated during module operation, preventing high-density Trusted processors or I/O modules from failing due to overtemperature.
How to correctly install and use products like the T8270?
The T8270 is typically bolted directly to the bottom or top of a Trusted Controller Chassis or Expander Chassis. Simply slide it into the designated standard 19-inch rack position, tighten the mounting screws, and connect it to a redundant 24 Vdc power supply via dedicated power cables.
Does the T8270 support live hot-swapping?
Yes. As a peripheral component of a high-availability critical control system, it can be safely removed and replaced from an operating chassis, provided that the overall enclosure ventilation is not interrupted for too long.
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