Littelfuse
LLSRK004ID - 4Amp Fuse
LLSRK004ID - 4Amp Fuse
Couldn't load pickup availability
LLSRK004ID - 4Amp Fuse
When your fuse opens, finding the problem shouldn't take longer than it needs to. The Littelfuse LLSRK400ID makes troubleshooting easier with a built-in indicator that helps maintenance teams spot a blown fuse without unnecessary guesswork.
This 400-amp Class RK1 time-delay fuse is built for industrial and commercial electrical systems where motors, machinery, and other equipment can draw a surge of current during startup.
Key Features and Benefits
- 400 Amp Current Rating
- 600V AC / 300V DC Voltage Ratings
- Class RK1 Current-Limiting Protection
- Patented Indicator™ Technology
- Time-Delay (Slo-Blo) Performance
- High Interrupting Capacity
- Precision-Formed Short-Circuit Elements
- Solid-State Overload Section
- Knife-Blade Design
- Reduced Maintenance Downtime
- Versatile Circuit Protection
Technical Specifications
-
Manufacturer: Littelfuse
-
Catalog Number: LLSRK400ID
-
Product Series: LLSRK_ID
-
Product Type: Time-Delay Indicating Fuse
-
Fuse Class: RK1
-
Rated Current: 400 Amps
-
AC Voltage Rating: 600V AC
-
DC Voltage Rating: 300V DC
-
Operating Characteristic: Time-Delay (Slo-Blo)
-
Protection Type: Current-Limiting
-
Fuse Status Indication: Built-In Blown-Fuse Indicator
-
Connection Style: Knife-Blade
-
AC Interrupting Rating: 200,000A RMS Symmetrical (UL)
-
DC Interrupting Rating: 20,000A (Manufacturer Self-Certified)
Material Compliance and Certifications
- UL Listed: File E81895
- CSA Certified: File LR29862
- Fuse Classification: Class RK1
- AC Interrupting Rating: 200kA RMS Symmetrical (UL)
- Additional AC Interrupting Rating: 300kA RMS Symmetrical (Littelfuse Self-Certified)
- DC Interrupting Rating: 20kA (Littelfuse Self-Certified)
- Federal Specification: WF-1814
For RoHS, REACH, or other material compliance requirements, check the latest Littelfuse declaration for the exact part number.
Where It Works Best
- Industrial Motor Circuits
- Commercial Electrical Distribution
- Industrial Machinery
- Motor Control Equipment
- Maintenance-Intensive Facilities
- Electrical Control Systems
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
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.