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T9902

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The ICS Triplex T9902 is a critical service spare part specifically engineered as the 10A, 125V fast-acting output fuse for the AADvance T9851 and T9852 Digital Output Termination Assemblies.
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Technical specifications for T9902

  • Manufacturer:
    ICS Triplex
  • Part Number:
    T9902
  • Product Family:
    AADvance Controller
  • Product Type:
    Replacement Input Fuse Kit
  • Rated Current:
    10 A
  • Rated Voltage:
    125 V AC / DC
  • Fuse Type:
    Surface Mount (SMF Omni-Block)
  • Operating Temp Range:
    -25 °C to +70 °C (-13 °F to +158 °F)
  • Storage Temp Range:
    -40 °C to +85 °C (-40 °F to +185 °F)
  • Terminal Torque:
    0.5 Nm (0.37 ft-lb)
  • Weight:
    0.1 kg
  • Estimated shipping dimensions:
    12.2x10.7x3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Safety & Compliance Environmental Ratings

Features:

  • Rapid Field Replacement with Zero Downtime
  • SIL 3-Compliant Overcurrent Protection
  • Hazardous Area Certification (Class I, Div 2)
The ICS Triplex T9902 utilizes an accessible surface-mount fuse block on the T9852 termination assembly. Unlike traditional soldered fuses, this design allows a technician to replace a blown fuse in under 60 seconds, restoring output channel functionality without removing the I/O module or disturbing field wiring—critical for maintaining high availability in business-critical processes.

Engineered specifically for safety instrumented functions, the ICS Triplex T9902 provides precise fast-acting interruption at 10A/125V. This exact rating ensures that diagnostic tests run by the T9110 processor do not falsely trip due to thermal drift or voltage sag, maintaining up to SIL 3 integrity for emergency shutdown (ESD) and fire & gas (F&G) loops without compromising channel safety accuracy.

The ICS Triplex T9902 is fully certified for use in explosive atmospheres when installed in the AADvance TA. It maintains the equipment’s suitability for Class I, Division 2, Groups A, B, C, D environments. The fuse’s robust ceramic body prevents arc flash hazards, complying with ATEX/IECEx requirements that the enclosure must remain "IP54 and tool-accessible."

The T9902 ICS Triplex Replacement Input Fuse Kit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T9902 Replacement Input Fuse Kit Manuals,Datasheets,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. All prices are shown in USD.
ICS Triplex T9902 Replacement Input Fuse Kit

General

  • Manufacturer ICS Triplex
  • Model T9902
  • Condition New Original ready stock
  • Product Family T9110,T9191,T9901
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Emergency Shutdown Systems (ESD): The ICS Triplex T9902 protects solenoid valves and actuators in high-risk oil & gas platforms, ensuring that a short circuit in one valve does not crash the entire logic solver power bus.
  • Fire & Gas (F&G) Systems: In refinery fire panels, this fuse secures notification appliances (horns/strobes). Its fast-acting nature allows the T9451 module to clear faults before the 24V field supply collapses, maintaining alarm audibility.
  • Burner Management Systems (BMS): For boiler shut-down valves, the ICS Triplex T9902 provides the precise overcurrent trip point required by NFPA 85/86, preventing welded relay contacts that could lead to burner explosions.
  • Turbine Control: For critical auxiliary pumps, using the ICS Triplex T9902 ensures vibration tolerance, preventing nuisance fuse failures due to mechanical resonance that standard glass fuses would suffer.
  • IEC 61508 SIL 3 Ready: While the fuse is a simple element, it is the only fuse qualified for use in TÜV-certified AADvance loops. Substituting a generic 10A fuse voids the SIL 3 rating for that channel due to unknown I²T melting integrals.
  • ATEX/IECEx (Ex ec IIC T4 Gc): The ICS Triplex T9902 allows the T9852 assembly to retain its "Increased Safety" rating. It is designed to not produce sparks or excessive temperatures even under fault conditions up to 125V.
  • UL 248-14 Recognition: Listed under File Number E251761, the ICS Triplex T9902 meets the requirements for Industrial Control Equipment in Non-Hazardous and Hazardous (Class I, Div 2) locations.
  • RoHS/WEEE Compliance: The ICS Triplex T9902 is lead-free and fully recyclable, meeting the Waste Electrical and Electronic Equipment directive for disposal in European markets.
  • Wide Ambient Operation: The ICS Triplex T9902 supports continuous operation from -25°C to +70°C (-13°F to +158°F), suitable for un-conditioned outdoor cabinets in the Middle East or Arctic drilling sites.
  • Humidity Endurance: Rated for 10% to 95% relative humidity (non-condensing). The surface mount block material is hydrolysis-resistant, preventing the "green crust" corrosion seen in standard fuse holders after 5 years of tropical deployment.
  • Vibration Resistance: Unlike glass fuses that fracture, the ICS Triplex T9902 ceramic body withstands 0.5g acceleration (10-150 Hz) and 15g shock pulses, making it ideal for reciprocating compressor skids and offshore wind turbine nacelles.
  • Altitude Capability: Certified for operational use up to 2,000 meters (6,600 ft.) without de-rating, and transport up to 3,000 meters, ensuring global logistics compliance for high-altitude mining projects in the Andes.
Description
ICS Triplex T9902 serves as the primary overcurrent protection device within the AADvance controller architecture. Designed for the T9851 (Simplex) and T9852 (Dual) termination assemblies, this OEM-specified fuse (Littlefuse 154.010) guarantees that field output circuits are safely disconnected during short circuits or overloads. Unlike generic fuses, the ICS Triplex T9902 meets the specific interrupting ratings required for SIL 3 applications, preventing damage to backplane electronics while maintaining the integrity of emergency shutdown loops.

The ICS Triplex T9902 is manufactured with a surface-mount Omni-Block design, allowing for rapid field replacement without de-soldering. This "plug-and-protect" mechanism minimizes system downtime—a critical advantage for oil & gas refineries or chemical plants where every minute of production loss equates to high financial risk.

Furthermore, the ICS Triplex T9902 complies with the demanding environmental specifications of the AADvance system, operating reliably across temperatures from -25°C to +70°C. For maintenance engineers, using the authentic ICS Triplex T9902 guarantees that the "channel health" diagnostics reported by the T9110 processor remain accurate, avoiding nuisance trip alarms caused by incorrect fuse ratings.
Alternative Names
T99O2 T9901 T9100 T9110 T9191 T9193 T9300 T9087
Technical notes
ICS Triplex T9902 technical implementation requires adherence to a minimum tightening torque of 0.5 Nm on the termination assembly; note that this fuse is non-polarized but must be replaced with the identical 10A, 125V Fast-Acting type to maintain UL/ATEX hazardous location certifications for the AADvance system.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Does the ICS Triplex T9902 work with third-party I/O modules or only AADvance?
The ICS Triplex T9902 is dimensionally and electrically calibrated exclusively for the AADvance T9851 and T9852 termination assemblies. Its 10A/125V fast-acting curve is matched to the diagnostic impedance of the T9451 digital output module; using it in non-Rockwell hardware may result in nuisance fuse blowing or failure to clear a short circuit.
How can I diagnose that the ICS Triplex T9902 has failed without removing it?
When the ICS Triplex T9902 interrupts a circuit, the AADvance Workbench software will display a "Field Fault" (Amber LED) on the specific T9451 output channel. Additionally, the channel status variable will report "Open Circuit" because the fuse disconnects the load. You cannot read continuity online, but the loss of load current is instantly reported by the processor.
Are there any special installation steps for the ICS Triplex T9902 in a Zone 2 hazardous area?
Yes. When replacing the ICS Triplex T9902 in a hazardous environment (ATEX/IECEx), you must de-energize the field power supply before opening the fuse cover. The enclosure must remain IP54 rated. After replacement, ensure the termination assembly cover is closed and locked to maintain the "Do not open when energized" warning compliance. Do not hot-swap the fuse in explosive atmospheres.
Is the ICS Triplex T9902 compatible with the newer AADvance 2.x firmware releases?
Absolutely. The ICS Triplex T9902 is a passive hardware component; its function is independent of firmware version 2.011 or later. It supports the "Line Monitoring" diagnostics introduced in Workbench 2.x, as its 10A rating allows the 20mA test pulse to pass through without heating the element, ensuring accurate open-circuit detection.
Does the ICS Triplex T9902 support redundant output configurations (1oo2)?
Yes. The ICS Triplex T9902 is specifically utilized in the T9852 Dual Termination Assembly for 1oo2 (one-out-of-two) voting architectures. In this setup, each redundant output channel has its own ICS Triplex T9902 fuse, allowing a single channel to trip offline for maintenance without de-energizing the final control element, provided the parallel channel remains healthy.

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