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Eaton Bussmann LPJ-450SPI 450A 600VAC Class J Indicating Fuse
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Eaton Bussmann

Eaton Bussmann LPJ-450SPI 450A 600VAC Class J Indicating Fuse

Part Number: LPJ-450SPI

● LT: 8-12w

450A Low-Peak Class J dual-element time-delay fuse, indicating, rated 600VAC.

Rated Current450A
Rated Voltage600V AC
Breaking Capacity300kA RMS symmetrical at 600VAC
PackageDrawing dimensions: 8.00 / 6.00 / 3.75 in reference lengths; 2.50 in body diameter; terminal details 0.53 / 0.69 / 2.13 / 2.00 / 0.38 in
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The Eaton Bussmann Low-Peak LPJ-450SPI is a 450A indicating UL Class J fuse with dual-element, current-limiting and time-delay performance. It provides a minimum 10-second operating time at 500% of rated current and a 300kA RMS symmetrical interrupting rating at 600VAC. The easyID open-fuse indicator requires at least 75VAC, and this indicating version is not DC rated.

Quick answer, specifications & FAQ
Direct answer

Eaton Bussmann Current-Limiting Dual-Element Branch-Circuit Fuse LPJ-450SPI is rated 450A, 600V AC, Time Delay. Breaking capacity 300kA RMS symmetrical at 600VAC, I²t See official current-limitation curves, certifications cULus Listed (JDDZ.E4273) · CSA Certified · CE · RoHS Compliant. Listed applications: Branch Circuit Protection, Industrial Control Protection, Motor protection, Power Distribution Protection. Standards: CSA C22.2 No. 248.8, UL 248-8. 450A Low-Peak Class J dual-element time-delay fuse, indicating, rated 600VAC.

Last updated 23 days ago

Key specifications

  • Part number: LPJ-450SPI
  • Brand: Eaton Bussmann
  • Rated current: 450A
  • Rated voltage: 600V AC
  • Breaking capacity: 300kA RMS symmetrical at 600VAC
  • Fuse speed: Time Delay
  • Dimensions: Drawing dimensions: 8.00 / 6.00 / 3.75 in reference lengths; 2.50 in body diameter; terminal details 0.53 / 0.69 / 2.13 / 2.00 / 0.38 in
  • Terminal type: Class J blade terminals
  • Certifications: cULus Listed (JDDZ.E4273) · CSA Certified · CE · RoHS Compliant
  • Standards: CSA C22.2 No. 248.8, UL 248-8
  • Typical lead time: 8-12 weeks
  • Fuse indicator: Indicating easyID; minimum indicator voltage 75VAC; indicating version is not DC rated; Response: minimum 10 s at 500% rated current; Carton quantity: 1; Recommended JM fuse blocks: JM60600-1CR, JM60600-2CR, JM60600-3CR. Source: Eaton Technical Data 1007, July 2023.

Frequently asked questions

What are the current and voltage ratings of LPJ-450SPI?

LPJ-450SPI is rated 450A at 600V AC.

What is the breaking capacity of LPJ-450SPI?

LPJ-450SPI has a breaking capacity of 300kA RMS symmetrical at 600VAC. Confirm this covers the available fault current at the installation point.

Which standards and approvals apply to LPJ-450SPI?

LPJ-450SPI is listed under CSA C22.2 No. 248.8, UL 248-8 / cULus Listed (JDDZ.E4273) · CSA Certified · CE · RoHS Compliant.

What is LPJ-450SPI used for?

LPJ-450SPI is listed for Branch Circuit Protection, Industrial Control Protection, Motor protection, Power Distribution Protection applications. Verify suitability for your circuit before ordering.

What are the ordering terms for LPJ-450SPI?

LPJ-450SPI: typical lead time 8-12 weeks. Submit a quote request for a firm quotation.

Data sources

Part number
LPJ-450SPI
Brand
Eaton Bussmann
Last updated
2026-10-10
Canonical URL
https://fusestock.com/products/lpj-450spi-eaton-bussmann/

Technical Specifications

Part Number
LPJ-450SPI
Manufacturer Part Number
LPJ-450SPI
Series
Low-Peak LPJ Class J
Fuse Type
Current-Limiting Dual-Element Branch-Circuit Fuse
Current Rating
450A
Voltage Rating
600V AC
AC / DC
AC
Breaking Capacity
300kA RMS symmetrical at 600VAC
I²t
See official current-limitation curves
Package / Dimensions
Drawing dimensions: 8.00 / 6.00 / 3.75 in reference lengths; 2.50 in body diameter; terminal details 0.53 / 0.69 / 2.13 / 2.00 / 0.38 in
Mounting
Bolt Mount
Application
Branch Circuit Protection · Industrial Control Protection · Motor protection · Power Distribution Protection
Standard
CSA C22.2 No. 248.8 · UL 248-8
Terminal Type
Class J blade terminals
Fuse Speed
Time Delay
Utilization Class
Class J
Approvals
CE · CSA Approval (Unspecified) · cULus · RoHS
Certifications
cULus Listed (JDDZ.E4273) · CSA Certified · CE · RoHS Compliant
Reference Lead Time
8-12 weeks
Fuse indicator
Indicating easyID; minimum indicator voltage 75VAC; indicating version is not DC rated; Response: minimum 10 s at 500% rated current; Carton quantity: 1; Recommended JM fuse blocks: JM60600-1CR, JM60600-2CR, JM60600-3CR. Source: Eaton Technical Data 1007, July 2023.

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DatasheetOpen / download →Time-Current CurveOpen / download →DrawingOpen / download →
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