Littelfuse IDSR100 600 VAC/VDC 100A Class RK5 Indicator Fuse

LittelfuseModel:IDSR100
Location unavailable
Surge Protector
Qty:1
Condition: New
Request priceIn stock
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Motor Control Center
Motor Control Center

Seller since: Feb 2026

At a glance

Product
Littelfuse IDSR100 600 VAC/VDC 100A Class RK5 Indicator Fuse
Manufacturer
Littelfuse
Model
IDSR100
Category
Surge Protector
Condition
NEW
Availability
In stock
Price or process
Request price
Quantity
1
Lead time
Not provided
Location
Location unavailable
Fulfillment
Shipping only
Listed on

Key specifications

Current Rating
100A
Fuse Class
RK5
Indicator Type
Dual Indicator
Interrupting Rating AC
200kA
Interrupting Rating DC
20kA
Time Delay
true
Voltage Rating AC
600V
Voltage Rating DC
600V

Supporting evidence

No supporting documents or certifications provided.

Description

The Littelfuse IDSR100 is a high-performance Class RK5 time-delay fuse designed for reliable overcurrent protection in industrial and commercial electrical systems. Featuring a dual-indicator design, it provides visual confirmation of a blown fuse through a color-changing window, simplifying maintenance and reducing downtime. This fuse is rated for 600V AC/DC and 100A, making it ideal for applications such as motor circuits, transformers, feeders, and branch circuits where temporary overloads occur. Its time-delay characteristic prevents nuisance tripping from inrush currents, while offering superior current-limiting protection against short circuits. Advantages over similar products include enhanced interrupting capacity up to 200kA AC and 20kA DC, compact design for space-constrained panels, and compliance with UL and CSA standards for safety. Drawbacks may include higher cost compared to basic fast-acting fuses and the need for compatible fuse holders. Based on attached images, the unit appears new and unused, with intact packaging and clear labeling, including 'Littelfuse' branding, model IDSR100, voltage/current ratings, and 'Dual Element Time Delay' notation. No visible damage or wear. For resources, refer to the official Littelfuse datasheet (available at https://www.littelfuse.com/media?filetype=pdf&itemtype=datasheets&product=IDSR) and fuse selection guide (https://www.littelfuse.com/technical-resources).
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Return Window
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Return Conditions
This equipment is sold as-is, where-is
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