LPN-RK-400SP - 400 Amp Fuse Description
LPN-RK-400SP - 400 Amp Fuse
When you're matching a 400A fuse to existing electrical equipment, the catalog number is only the beginning. The Eaton Bussmann series LPN-RK-400SP is a 400A Class RK1 time-delay, current-limiting fuse rated for 250VAC and 250VDC. Eaton specifies an interrupting rating of 300 kAIC at 250VAC and 100 kAIC at 250VDC, with dual-element construction and a blade-end × blade-end connection. When correctly selected, installed by qualified electrical personnel, and operated within its specified ratings, the LPN-RK-400SP is built to last as part of a properly designed and maintained electrical system.
Key Features and Benefits
- 400A Class RK1 configuration: Combines a 400-amp rating with the manufacturer's specified Class RK1 design for compatible applications.
- 250VAC and 250VDC ratings: The same nominal voltage rating applies to both AC and DC applications, while the applicable interrupting ratings differ.
- Time-delay operation: Eaton identifies the LPN-RK-400SP as a time-delay fuse, an important operating characteristic to match with the equipment being protected.
- Current-limiting design: Provides the manufacturer-specified current-limiting characteristic required for appropriate applications.
- Dual-element construction: Uses Eaton's specified dual-element configuration.
- Blade end × blade end connection: Gives technicians a defined connection configuration to check when confirming physical compatibility.
- Non-indicating configuration: Eaton identifies this catalog number as non-indicating.
Technical Specifications
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Manufacturer: Eaton
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Product Family: Bussmann Series
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Product Name: Eaton Bussmann Series LPN-RK Fuse
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Catalog Number: LPN-RK-400SP
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Product Type: Fuse
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Fuse Class: Class RK1
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Amperage Rating: 400A
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AC Voltage Rating: 250VAC
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DC Voltage Rating: 250VDC
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AC Interrupting Rating: 300 kAIC at 250VAC
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DC Interrupting Rating: 100 kAIC at 250VDC
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Fuse Type: Time Delay; Current-Limiting
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Number of Elements: Dual
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Connection: Blade End × Blade End
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Fuse Indicator: Non-Indicating
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Special Feature: High In-Rush Current Motor Protection
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Product Length/Depth: 8.63 in.
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Product Height: 2.36 in.
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Product Width: 2.36 in.
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Product Weight: 1.75 lb.
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UPC: 051712538558
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CE Marked: Yes
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RoHS Compliance: Identified by Eaton as RoHS Compliant
Material Compliance and Certifications
According to Eaton's supplied specifications, the LPN-RK-400SP is CE Marked and RoHS Compliant. These manufacturer-stated compliance details provide useful reference points when evaluating the fuse against applicable equipment, facility, project, or regulatory requirements.
Where It Works Best
The Eaton Bussmann LPN-RK-400SP 400A Class RK1 fuse is intended for compatible electrical equipment requiring a 400A rating, 250VAC / 250VDC voltage ratings, Class RK1 configuration, time-delay operation, current-limiting characteristics, dual-element construction, and blade-end × blade-end connection. Eaton's stated high in-rush current motor protection is particularly relevant when evaluating this catalog number for compatible motor applications.
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Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:2.0
- Depth:2.0
- Height:8.63
- Amperes:400
- A.I.C. Rating & Volts:200 kA @ 250 V.AC
- Type:LPN-RK
- Additional Notes:Knife-Blase Style, Non-Indicating, Time-Delay, current-limiting Class R Fuse
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