TJN450 - 450 Amp Fuse Description
TJN450 - 450 Amp Fuse
The TJN450 Class T Fuse delivers dependable overcurrent protection for your commercial and industrial electrical systems that demand fast response times and high interrupting capacity. Rated at 450 amps with a 200 kA interrupting rating at 300VAC, this fuse is built to quickly clear fault conditions and help protect connected equipment from costly electrical damage. Its very fast-acting, current-limiting design helps you to reduce let-through energy during short circuits, making it a smart choice for protecting sensitive electrical components and high-demand power distribution systems.
Designed with a compact knife-blade style body, the TJN450 installs easily into compatible Class T fuse holders and switchgear assemblies. The non-indicating construction keeps the design simple and reliable while maintaining strong performance in space-conscious applications. Whether used in manufacturing facilities, control panels, or power distribution equipment, this fuse provides the high-speed protection needed to keep systems operating safely and efficiently.
Key Features and Benefits
- 450 amp Class T fuse: For high-capacity circuit protection.
- Very Fast-Acting Response: Helps reduce equipment damage during faults.
- Current-Limiting Design: Lowers the let-through current during short circuits.
- 200 kA Interrupting Capacity at 300VAC: Suitable for demanding electrical systems.
- Compact Footprint: Helps save valuable panel space.
- Knife-Blade Style Construction: Provides secure installation.
- Non-Indicating Design: Allows for straightforward operation.
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Protects Sensitive Equipment: Helps safeguard sensitive electrical and power distribution equipment.
Technical Specifications
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Part Number: TJN450
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Type: Class T Fuse
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Amperage: 450A
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Voltage Rating: 300VAC
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Interrupting Rating: 200 kA @ 300VAC
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Fuse Style: Knife-Blade
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Acting Speed: Very Fast-Acting
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Indication: Non-Indicating
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Current Limiting: Yes
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Dimensions:
- Height: 3.062 in
- Width: 1.593 in
- Depth: 1.593 in
Material Compliance and Certifications
- Application Compliance: The TJN450 is manufactured for use in electrical protection applications requiring reliable current-limiting Class T fuse performance.
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Installation Guidelines: Installation should follow applicable NEC requirements, local electrical codes, and manufacturer guidelines for compatible equipment.
Where It Works Best
- Industrial power distribution systems
- Motor control centers
- UPS and backup power systems
- Manufacturing equipment
- Commercial electrical panels
- Control panels with sensitive downstream components
- High fault-current applications requiring fast overcurrent protection
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Specifications
- Width:1.593
- Depth:1.593
- Height:3.062
- Amperes:450
- A.I.C. Rating & Volts:200 kA @ 300 V.AC
- Type:TJN
- Additional Notes:Knife-Blade Style, Non-Indicating, Very Fast-Acting, current-limiting Class T Fuse
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