KLSR500 - 500Amp Fuse Description
KLSR500 - 500Amp Fuse
When your equipment calls for a 500A Class RK1 fast-acting fuse, matching the catalog number and full electrical specification is far more useful than shopping by amperage alone. The KLSR500 is a 500-amp, current-limiting fuse from the KLSR Series, featuring a single-element silver-link design engineered for fast-acting overload and short-circuit protection. Because fast-acting fuses behave differently from time-delay designs, verify the fuse class, voltage, interrupting capacity, opening characteristic, construction, and equipment requirements before deciding on a replacement.
Key Features and Benefits
- 500A continuous current rating for equipment specifically designed around a 500-amp fuse requirement.
- Class RK1 fuse configuration provides a clear specification to match when replacing an existing fuse.
- Fast-acting (F) opening characteristic delivers fast overload and short-circuit protection.
- A single-element silver link is used in the KLSR Series design.
- Current-limiting construction helps reduce equipment damage caused by the heating and magnetic effects associated with short-circuit currents.
- Handles applications requiring a maximum rating of up to 600VAC.
- Suitable for properly matched DC equipment requiring up to 300VDC.
- Knife-blade construction provides the physical format specified for the non-indicating LSR500.
- Install it with a compatible fuse block, clip, or holder.
- Non-indicating design means there is no integral blown-fuse indicator.
Technical Specifications
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Catalog Number: KLSR500
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Manufacturer Description: FUS 600V F/A CLASS RK1 500A
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Series: KLSR
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Product Type: Fast-Acting, Current-Limiting 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 Capacity: 200,000A at 600VAC
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DC Interrupting Capacity: 20,000A at 300VDC
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Listed Interrupting Rating: 20 kA at 300VDC
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Opening Characteristic: Fast-Acting (F)
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Fuse Class: Class RK1
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Family Style: Current Limiting
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Construction / Size: Knife-Blade
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Element Design: Single-element silver link
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Indicating: No
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Mounting Method: Fuse Block / Clip / Holder
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Specified PG Holder: LFR60600 Series
Material Compliance and Certifications
The supplied manufacturer information specifically identifies a silver link as part of the KLSR Series' single-element construction. The supplied specifications do not include a complete product-specific material breakdown for the KLSR500—including the body, terminals, filler, and other components—so do not assume additional materials.
Where It Works Best
The KLSR500 suits electrical equipment that requires a 500A, Class RK1, fast-acting, current-limiting fuse with matching voltage, interrupting, and physical requirements. The manufacturer highlights variable speed drives, rectifiers, and other equipment containing surge-sensitive components as examples where the fast-acting KLSR Series can be used. Its current-limiting design is intended to reduce damage caused by the heating and magnetic effects of short-circuit currents.
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Littelfuse® is a registered trademark of Littelfuse, Inc. Products sold are surplus, used, or refurbished and are NOT supplied by Littelfuse, Inc. or its affiliates.
Specifications
- Width:3.04
- Depth:3.04
- Height:13.38
- Amperes:500
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:KLSR
- Additional Notes:Knife-blade Style, Non-Indicating, Fast-Acting, current-limiting Class R Fuse
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You may return unused items within 30 days of delivery for a full refund.
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