JLLS500 - 500Amp Fuse Description
JLLS500 - 500Amp Fuse
The JLLS500 is a 500-amp Class T fast-acting fuse designed for electrical equipment that requires a high interrupting rating, current-limiting fuse characteristics, and a knife-blade/bolt-in configuration. Rated for a maximum of 600VAC and 300VDC, this fuse has a 200 kA AC interrupting rating at 600VAC and a 20 kA DC interrupting rating at 300VDC. If you're replacing an existing JLLS500, matching the catalog number is a useful first check, but don't rely on amperage alone.
Key Features and Benefits
- 500A continuous current rating for equipment designed to use 500-amp fuse protection.
- Maximum voltage rating of 600VAC.
- Maximum voltage rating of 300VDC.
- Fast-acting (F) opening characteristic with no intentional time delay.
- Class T fuse configuration for equipment requiring this specific fuse class.
- Current-limiting family style.
- Knife-blade/bolt-in construction for compatible mounting arrangements.
- Non-indicating design without an integrated visual blown-fuse indicator.
- Designed to mount in the appropriate fuse block, clip, or holder.
Technical Specifications
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Catalog Number: JLLS500
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Series: JLLS
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Product Type: Class T Fuse
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Continuous Current Rating: 500A
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Maximum AC Voltage: 600VAC
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Maximum DC Voltage: 300VDC
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AC Interrupting Rating: 200 kA at 600VAC
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DC Interrupting Rating: 20 kA at 300VDC
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Opening Characteristic: Fast-Acting (F)
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Fuse Class: Class T
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Family Style: Current Limiting
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Construction / Size: Knife-Blade / Bolt-In
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Indicating: No
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Mounting Method: Fuse Block / Clip / Holder
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Specified Holder Series: LFT60600 Series
Material Compliance and Certifications
The supplied specifications identify the JLLS500 as a Class T, fast-acting, current-limiting fuse and provide its primary electrical ratings, interrupting capacities, mounting method, and physical configuration.
Where It Works Best
The JLLS500 500A Class T fuse is best suited to electrical equipment specifically designed around a 500A, fast-acting Class T fuse. In AC applications, it is rated for a maximum of 600VAC and provides a 200 kA interrupting rating at 600VAC. Match those specifications to the circuit and equipment requirements rather than assuming suitability based solely on the 500A current rating.
The JLLS500 can also be considered for correctly specified DC applications up to 300VDC, subject to its 20 kA interrupting rating at 300VDC and the equipment's requirements. Its knife-blade/bolt-in construction also makes mechanical compatibility an essential part of the selection process.
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Specifications
- Width:2.062
- Depth:2.062
- Height:3.984
- Amperes:500
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:JLLS
- Additional Notes:Knife-blade Style, Non-Indicating, Very Fast-Acting, current-limiting Class T Fuse
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You may return unused items within 30 days of delivery for a full refund.
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