LPSJ603.Z Equivalent & Substitute Parts

Part Overview

The LPSJ603.Z is a cartridge fuse holder manufactured by Littelfuse Inc., designed for 60 A, 600V applications with 3-circuit DIN rail mounting. This component is classified as obsolete, making identification of suitable substitutes essential for system maintenance and component replacement in industrial electrical installations.

The transition from LPSJ to LFPSJ series represents a product line evolution within Littelfuse's fuse holder portfolio. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and mounting compatibility to ensure direct interchangeability without system redesign.

Substiute Parts

LPSJ603.Z

Littelfuse Inc.In Stock: 1185LPSJ603.Z Datasheet

Current PartRFQ

LFPSJ603.Z

Littelfuse Inc.In Stock: 726LFPSJ603.Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPSJ603.Z is determined by strict equivalence across the following parameters:

• Current Rating: 60 A (exact match required)
• Voltage Rating: 600V (exact match required)
• Fuse Size: 1.063" Dia x 2.374" L / 27mm x 60.3mm (exact match required)
• Number of Circuits: 3 (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Termination Style: Screw Terminal, Pressure Plate (exact match required)
• Fuse Type: Cartridge (exact match required)
• For Use With: Class J Fuses (exact match required)

The LFPSJ603.Z qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The series designation change from LPSJ to LFPSJ reflects product line consolidation by the manufacturer while maintaining full compatibility with existing installations.

Parameter Comparison

Engineering Selection Recommendations

The LFPSJ603.Z is the direct substitute for the obsolete LPSJ603.Z. Both components are manufactured by Littelfuse Inc. and maintain identical electrical specifications (60 A, 600V), mechanical dimensions (27mm x 60.3mm), and mounting configuration (3-circuit DIN rail with screw terminal and pressure plate termination).

The LFPSJ603.Z carries active product status and is currently in production, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), confirming environmental and reliability equivalence.

The transition from LPSJ to LFPSJ series represents standard product line management by the manufacturer. No electrical redesign or system modification is required for component replacement.

Frequently Asked Questions (FAQ)

Q: Can LFPSJ603.Z be used as a direct replacement for LPSJ603.Z?

A: Yes. The LFPSJ603.Z is a direct substitute. All electrical ratings (60 A, 600V), mechanical dimensions (27mm x 60.3mm), circuit count (3), mounting type (DIN rail), and termination style (screw terminal with pressure plate) are identical.

Q: What is the difference between LPSJ603.Z and LFPSJ603.Z?

A: The primary difference is product status. LPSJ603.Z is obsolete; LFPSJ603.Z is active production. The series designation change reflects manufacturer product line consolidation. Electrical and mechanical specifications are equivalent.

Q: Are there packaging differences between these parts?

A: LPSJ603.Z packaging is not specified in available data. LFPSJ603.Z is supplied in box packaging. This does not affect electrical or mechanical compatibility.

Q: Is the LFPSJ603.Z compatible with Class J fuses?

A: Yes. Both LPSJ603.Z and LFPSJ603.Z are designed for use with Class J fuses and maintain identical fuse size specifications (1.063" Dia x 2.374" L).

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both LPSJ603.Z and LFPSJ603.Z are ROHS3 compliant. LFPSJ603.Z additionally carries REACH Unaffected status, confirming compliance with current regulatory requirements.