LPSJ302.Z Equivalent & Substitute Parts

Part Overview

The LPSJ302.Z is a cartridge fuse holder manufactured by Littelfuse Inc., designed for Class J fuses with a 30 A current rating at 600V. This component is classified as obsolete, which necessitates identification of equivalent alternatives for continued system support and procurement planning. The LPSJ302.Z features a 2-circuit DIN rail mounting configuration with screw terminal and pressure plate termination, suitable for industrial electrical distribution applications.

Substiute Parts

LPSJ302.Z

Littelfuse Inc.In Stock: 865LPSJ302.Z Datasheet

Current PartRFQ

LFPSJ302.Z

Littelfuse Inc.In Stock: 743LFPSJ302.Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPSJ302.Z is determined by strict equivalence across the following critical parameters:

• Current rating: 30 A
• Voltage rating: 600V
• Fuse size: 0.813" Dia x 2.25" L (20.65mm x 57.15mm)
• Fuse type: Cartridge
• Number of circuits: 2
• Mounting type: DIN Rail
• Termination style: Screw Terminal, Pressure Plate
• Compatibility with Class J Fuses

The LFPSJ302.Z meets all these criteria and is classified as an active product, making it a direct equivalent substitute for the obsolete LPSJ302.Z.

Parameter Comparison

Engineering Selection Recommendations

The LFPSJ302.Z is the direct equivalent substitute for the obsolete LPSJ302.Z. Both components are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications across all critical parameters. The LFPSJ302.Z carries active product status, ensuring continued availability and supply chain support. Both parts maintain ROHS3 compliance and are suitable for Class J fuse applications in 600V, 30 A DIN rail installations. Selection of the LFPSJ302.Z eliminates obsolescence risk while preserving full functional and physical compatibility with existing system designs.

Frequently Asked Questions (FAQ)

Q: Can the LFPSJ302.Z be used as a direct replacement for the LPSJ302.Z?

A: Yes. The LFPSJ302.Z is a direct equivalent substitute. Both components share identical current rating (30 A), voltage rating (600V), fuse size (0.813" Dia x 2.25" L), cartridge fuse type, 2-circuit configuration, DIN rail mounting, and screw terminal/pressure plate termination. The primary difference is product status: LPSJ302.Z is obsolete while LFPSJ302.Z is active.

Q: Are there any physical or electrical differences between these parts?

A: No. The LPSJ302.Z and LFPSJ302.Z are electrically and mechanically identical across all specified parameters. Both are ROHS3 compliant and designed for Class J fuse applications.

Q: What is the significance of the series designation change from LPSJ to LFPSJ?

A: The series designation change reflects the product line evolution from obsolete to active status. The functional specifications remain unchanged, and the parts are fully interchangeable.

Q: Does packaging differ between these parts?

A: The LPSJ302.Z packaging is unspecified, while the LFPSJ302.Z is supplied in box packaging. This does not affect electrical or mechanical performance.

Q: Are both parts suitable for Class J fuse applications?

A: Yes. Both the LPSJ302.Z and LFPSJ302.Z are designed for use with Class J fuses and maintain full compatibility with this fuse standard.