TRS45R - 45 Amp Fuse Description
TRS45R - 45 Amp Fuse
The TRS45R 45 amp fuse is one of those parts you use when you need things to just work—no surprises. It’s a time-delay Class R fuse, so it’ll ride through the normal startup surge from motors or transformers, but still protect the circuit if something actually goes wrong.
That’s really the point here. You don’t want a fuse that trips every time equipment kicks on, and you definitely don’t want one that reacts too late. This one lands right in that middle ground.
It’s rated 200 kA at 600VAC, so it’s built for higher fault conditions you typically see in commercial or industrial setups. The TRS frame is common, so if you’re replacing an existing unit, there’s a good chance this drops right in without any hassle.
It’s also a Class R rejection fuse, which helps prevent someone from sticking the wrong fuse in the holder. Not something people think about—until it happens.
Key Features and Benefits
- 45 amp rating
- Time-delay (handles startup surge without blowing)
- Current-limiting design
- 200 kA interrupting rating @ 600VAC
- Class R rejection feature
- Cartridge-style body
- Non-indicating
Technical Specifications
- Part Number: TRS45R
- Amperage: 45A
- Voltage: 600VAC
- Interrupting Rating: 200 kA
- Class: R
- Type: Time-Delay, Current-Limiting
- Frame: TRS
- Size: 5.5" x 1.06" x 1.06"
Material Compliance and Certifications
- Built to meet standard UL and CSA requirements for this type of fuse. In other words, it’s suitable for use in systems where code compliance matters and inspections are a factor.
Where It Works Best
- Motor circuits
- HVAC equipment
- Transformers
- General industrial equipment
- Commercial panels
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Specifications
- Width:1.06
- Depth:1.06
- Height:5.5
- Amperes:45
- 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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