Description
- ICS Triplex T9902 | Original AADvance Safety Spare Kit
Unboxing & Physical Snapshot
- Model & Brand: ICS Triplex T9902 Replacement Output Fuse. This component is a dedicated replacement fuse used with Trusted/AADvance digital output modules such as T9851 and T9852. It protects output circuits from overcurrent conditions.
- Physical Dimensions (Approximate W × H × D): Approximately 12 × 12 × 4 mm (0.47 × 0.47 × 0.16 in.) for the surface-mount fuse block assembly.
- Estimated Shipping Weight: Less than 0.1 kg (0.22 lb) for a single fuse assembly; packaged weight depends on quantity, ESD protection, and supplier packing method.
- What’s in the Box:
- ICS Triplex T9902 replacement output fuse
- Surface-mount fuse block assembly
- Protective anti-static packaging
- Identification label or batch marking
- Documentation when supplied
Product Introduction
The T9902 is installed as a protective component inside compatible Trusted digital output modules rather than as a standalone field device. It provides overcurrent protection for output channels used with modules such as T9851 and T9852. Verify the exact module revision before replacement. The fuse specification, mounting position, and extraction procedure must match the approved maintenance documentation (which is critical for maintaining the validated safety circuit).
This small component performs a critical protection function within the Trusted TMR safety architecture. The T9902 uses a 10A, 125V fast-acting fuse element in a Littelfuse SMF Omni-Block surface-mount package. Inspect the fuse body, contact surfaces, and surrounding PCB area before installation. A damaged solder pad or overheated mounting area may indicate a deeper output fault rather than a simple fuse failure.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICS Triplex / Rockwell Automation |
| Model Number | T9902 |
| Product Type | Replacement Output Fuse |
| Application | Trusted TMR Digital Output Protection |
| Compatible Modules | T9851, T9852 Digital Output Modules |
| Fuse Type | Fast-acting surface-mount fuse |
| Fuse Rating | 10A |
| Rated Voltage | 125V |
| Fuse Manufacturer | Littelfuse |
| Fuse Package | SMF Omni-Block 154-010 |
| Mounting Method | Surface mount PCB installation |
| Electrical Function | Output circuit overcurrent protection |
| Operating Temperature | Approx. -30°C to +80°C fuse component range |
| Storage Requirement | Dry, controlled warehouse environment |
| Packaging Requirement | ESD-safe protection recommended |

ICS Triplex T9902
Global Compliance & Industry Certifications
Expected compliance considerations for the ICS Triplex include:
- UL Listed fuse component rating according to the applicable Littelfuse specification
- CE compliance consideration when installed inside an approved Trusted/AADvance system
- RoHS compliance where applicable to the supplied component batch
- IEC 61508 SIL system compatibility when used as part of the validated safety architecture
- ATEX/IECEx suitability only when installed within an approved hazardous-area system
- Marine approvals such as DNV GL only when included in a certified marine control package
The UL-rated fuse specification matters because it confirms that the protective device has defined interrupting characteristics under abnormal current conditions. Incorrect fuse substitution can compromise output protection behavior.
Verify specific lot certifications with OEM.
Long-Term Storage & Asset Preservation Guide
Keep spare units sealed in their original anti-static packaging. The small contact surfaces are vulnerable to oxidation, contamination, and handling damage.
Store in a dry environment below 60% RH. Avoid exposure to sulfur compounds, chemical vapors, and high-temperature storage areas that can affect metal surfaces.
Maintain inventory records carefully. Record the fuse rating, manufacturer marking, batch information, and compatible module references. Do not mix visually similar fuse components without confirming electrical specifications.
Physical Installation Prerequisites
- Confirm the replacement is intended for the correct Trusted output module.
- Remove power before accessing internal module protection components.
- Use approved extraction tools to avoid PCB damage.
- Inspect solder pads and surrounding PCB traces before replacement.
- Confirm the replacement fuse rating is 10A, 125V fast-acting.
- Ensure cabinet grounding and protective measures remain unchanged after maintenance.
- Perform output diagnostics after installation.
Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly used for the ICS Triplex ?
A: Fuse components are often classified under HS 8536 categories covering electrical protection devices. The final customs classification depends on the declared component type and destination-country regulations.
Q: Does Country of Origin affect importing fuse components?
A: Yes. COO affects customs declarations, supplier traceability, and maintenance documentation. Confirm origin through packaging labels, supplier invoices, and batch records.
Q: Is shipping insurance necessary for this small component?
A: Usually less critical than for processor modules, but recommended for larger quantities or urgent safety-system spares. Use moisture protection and anti-static packaging during transport.
Q: Does the include firmware pre-loaded?
A: No. The is a passive fuse component and contains no firmware, memory, or software. Its function is limited to electrical overcurrent protection within compatible Trusted output modules.



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