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- Overview
- Specifications
- Description
- Applications
- Troubleshooting
- FAQ
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
ICS TRIPLEX |
Model Number: |
T9902 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Model |
T9902 |
|
Product Type |
Replacement Output Fuse |
|
Fuse Type |
Littelfuse SMF Omni-Block surface mount fuse block (154 010), fast acting |
|
Current Rating |
10 A |
|
Voltage Rating |
Up to 125 V AC/DC |
|
Operating Temperature Range |
-25 °C to +70 °C |
|
Storage Temperature Range |
-40 °C to +85 °C |
|
Packaging |
Pack of 20 |
|
Application |
For T9851 / T9852 Output Termination Assemblies |
Description
The T9902 is a replacement out-of-line fuse for protecting output channels. This component is installed inside the termination assembly of the output terminals and acts as a hardware barrier to protect the printed circuit boards and electronic components inside the control system from external overcurrent damage.
Applications
Petrochemical plants: Used in SIS cabinets to protect valve and shutdown outputs in hazardous zones.
Natural gas liquefaction plants: Used in turbine and compressor systems to protect actuator circuits under temperature changes.
Chemical plants: Provides overcurrent isolation for relays and valves, preventing field shorts from damaging control cards.
Power plants: Used in DCS and ETS systems to protect circuits under electrical noise and load changes.
Offshore drilling platforms: Protects outputs from corrosion and cable-aging short faults in marine environments.
Troubleshooting
I/O channel fault—check fuse on T9851/2 board; infinite resistance indicates blown fuse. Check actuator for short, low impedance, or overload (>10 A).
Fuse blows again—stop replacement; disconnect circuit, inspect cable damage or ground short, and verify voltage within limits.
Poor fuse contact—check Littelfuse 154 010 base; adjust loose clips during power-off maintenance.
FAQ
Q: What is the rated current of the replacement fuse in the T9902?
A: 10 A rated current.
Q: What is the maximum rated voltage supported by the T9902?
A: Up to 125 V AC/DC.
Q: What fuse type is the T9902?
A: Littelfuse SMF Omni-Block fast-acting surface-mount fuse block.
Q: What operating temperature range does the T9902 support?
A: -25 °C to +70 °C.
Q: Which output terminal boards are compatible with the T9902?
A: Compatible with T9851 and T9852 output terminal boards.
