TRS150R - 150 Amp Fuse Description
TRS150R - 150 Amp Fuse
If you’re dealing with motors, transformers, or anything that pulls a surge on startup, you already know the problem—some fuses trip when they shouldn’t, and others don’t react fast enough when they need to. The TRS150R 150 Amp Class R Fuse is built to sit right in that middle ground. It’s a time-delay fuse, so it won’t blow every time your equipment kicks on. But when there’s an actual fault, it reacts fast and helps limit the damage. That’s where the current-limiting design comes into play—it reduces the amount of fault energy that gets through, which can make a big difference in protecting your gear. It’s also rated at 200 kA at 600VAC, so it’s not something you use on light-duty circuits. This is for systems where available fault current is high and protection matters. The knife-blade style is pretty standard for this class, but it’s worth mentioning—it gives you a solid connection in the holder, which helps with heat and long-term reliability. No indicator on this one. Fewer parts, less to fail.
Key Features and Benefits
- 150 Amp rating for higher-load applications
- Time-delay action helps avoid nuisance trips during startup
- Current-limiting to reduce damage during faults
- 200 kA interrupting rating @ 600VAC
- Knife-blade design for secure installation
- Non-indicating – simple, straightforward design
- Class R rejection feature helps prevent mismatched replacements
Technical Specifications
- Part Number: TRS150R
- Amperage: 150A
- Voltage: 600 VAC
- Interrupting Rating: 200 kA
- Class: R (Time-Delay, Current-Limiting)
- Style: Knife-Blade
- Indication: None
- Size: 9.63" x 1.79" x 1.79"
- Weight: Not listed
Material Compliance and Certifications
Manufactured to meet standard industry requirements like UL and CSA. That means it’s built for predictable performance under rated conditions. As always, make sure it’s installed according to local code.
Where It Works Best
You’ll typically see this type of fuse in places where equipment doesn’t start gently:
- Motor circuits
- HVAC units
- Transformers
- Industrial panels
- Commercial distribution setups
Basically, anywhere startup current is a factor and you don’t want unnecessary downtime.
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Specifications
- Width:1.79
- Depth:1.79
- Height:9.63
- Amperes:150
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:TRS
- Additional Notes:Knife-Blade Style, Non-Indicating, Time-Delay, current-limiting Class R Fuse
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