TRS9R - 9 Amp Fuse Description
TRS9R - 9 Amp Fuse
The TRS9R 9 amp Class R fuse is one of those components you install and don’t have to think about again—which is exactly the point. It’s built to protect your equipment without getting in the way of normal operation. Because it’s a time-delay fuse, it won’t trip the moment your equipment kicks on. Motors, transformers, and similar loads naturally draw a surge at startup, and this fuse is designed to ride through that without causing unnecessary downtime. At the same time, if there’s a real fault, it reacts quickly and limits the damage. With a 200 kA interrupting rating at 600VAC, it’s suited for systems where fault currents can get serious. It helps contain those events before they turn into bigger (and more expensive) problems. Physically, it’s a straightforward cartridge-style fuse. No complications, no extra features you don’t need—just a reliable fit for the right application.
Key Features and Benefits
- Time-delay design: helps avoid nuisance blowing during startup
- Current-limiting action: reduces stress on downstream equipment
- High interrupting rating: (200 kA @ 600VAC) for demanding systems
- Class R rejection feature: helps prevent installing the wrong fuse
- Standard cartridge format: for easy replacement
- Simple construction: non-indicating
Technical Specifications
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Part Number: TRS9R
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Amperage: 9A
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Voltage: 600VAC
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Interrupting Rating: 200 kA
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Class: R
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Type: Time-Delay, Current-Limiting, Cartridge
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Indication: Non-Indicating
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Frame Type: TRS
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Dimensions: 5.0" H × 0.81" W × 0.81" D
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Poles: Not specified
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Weight: Not specified
Material Compliance and Certifications
- Class R standards: This fuse falls within Class R standards, which are commonly specified for branch circuit protection under NEC guidelines. The rejection feature is there for a reason—it helps ensure the correct fuse type is used, which adds a layer of safety in real-world installations.
Where It Works Best
- The TRS9R makes the most sense in applications where startup current is expected but protection still needs to be tight: Motor circuits Control panels Transformers Commercial distribution setups General-purpose industrial equipment
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Specifications
- Width:0.81
- Depth:0.81
- Height:5.0
- Amperes:9
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:TRS
- Additional Notes:Cartridge Style, Non-Indicating, Time-Delay, current-limiting Class R Fuse
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