LLSRK075ID - 75 Amp Fuse Description
LLSRK075ID - 75 Amp Fuse
When your equipment shuts down because of a blown fuse, finding the problem quickly can save a lot of frustration. That's where the Littelfuse LLSRK075ID comes in handy. This 75-amp Class RK1 time-delay indicating fuse has a built-in window that darkens when the fuse opens, so maintenance crews can spot the affected fuse without spending extra time checking each one. Part of the Littelfuse POWR-PRO LLSRK_ID series, it's made for industrial circuits that need protection against overloads and short circuits.
Key Features and Benefits
- 75-Amp Time-Delay Protection
- Built-In Blown-Fuse Indicator
- Class RK1 Current-Limiting Design
- High Interrupting Capacity
- Precision-Formed Short-Circuit Elements
- Solid-State Overload Section
- Reduced Nuisance Opening
- Knife-Blade Construction
Technical Specifications
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Manufacturer: Littelfuse
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Catalog Number: LLSRK075ID
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Series: LLSRK_ID
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Product Family: POWR-PRO
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Product Type: Industrial cartridge fuse
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Fuse Class: Class RK1
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Continuous Current Rating: 75A
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Maximum AC Voltage: 600V AC
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Maximum DC Voltage: 300V DC
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Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
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Terminal Style: Knife-Blade
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Blown-Fuse Indication: Yes
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AC Interrupting Rating: 200,000A at 600V AC
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Additional AC Interrupting Rating: 300,000A at 600V AC, subject to applicable manufacturer rating conditions
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DC Interrupting Rating: 20,000A at 300V DC
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Short-Circuit Elements: Precision-formed
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Overload Section: Solid-state, no moving parts
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Mounting Method: Fuse Block / Clip / Holder
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Associated Fuse Holder Series: LFR60100 Series
Material Compliance and Certifications
The Littelfuse LLSRK075ID is a Class RK1 industrial fuse with published electrical ratings for overcurrent protection. It carries a continuous current rating of 75A, maximum voltage ratings of 600V AC and 300V DC, and the interrupting capacities listed above.
The available product information doesn't specify individual certification listings or material compliance declarations. If your project requires UL or CSA approvals, RoHS compliance, REACH documentation, or other certifications, check the latest manufacturer documentation for the exact LLSRK075ID part number.
Where It Works Best
- Industrial Motor Circuits
- Manufacturing Equipment
- Industrial Control Panels
- Commercial Electrical Systems
- Maintenance and Replacement Work
- Equipment with Repeated Current Surges
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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:1.28
- Depth:1.28
- Height:7.88
- Amperes:75
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:LLNRK
- Additional Notes:Knife-blade Style, Indicating, Time-Delay, current-limiting Class R Fuse
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