LR600301PR Equivalent & Substitute Parts

Part Overview

The LR600301PR is a Class R cartridge fuse holder rated for 30 A at 600V, designed for single-circuit chassis mount applications. This component is classified as obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations. The LR600301PR accepts Class R cartridge fuses measuring 0.813" diameter by 5" length and features screw terminal with pressure plate termination.

Substiute Parts

LR600301PR

Littelfuse Inc.In Stock: 877LR600301PR Datasheet

Current PartRFQ

LFR600301PID

LittelfuseIn Stock: 1021LFR600301PID Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LR600301PR is based on electrical and mechanical compatibility across the following parameters:

• Current Rating: 30 A (exact match required)
• Voltage Rating: 600V (exact match required)
• Fuse Size: 0.813" Dia x 5" L (exact match required)
• Fuse Type: Cartridge (exact match required)
• Number of Circuits: 1 (exact match required)
• Termination Style: Screw Terminal, Pressure Plate (exact match required)
• Compatible Fuse Series: Class R Fuses (exact match required)

The LFR600301PID meets all electrical and mechanical parameters for direct substitution. The primary difference is the mounting configuration: the LR600301PR uses chassis mount, while the LFR600301PID uses DIN rail mount. Both accept identical Class R cartridge fuses and provide equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The LFR600301PID is the direct electrical equivalent to the LR600301PR. Both components accept identical Class R cartridge fuses and provide equivalent 30 A, 600V protection in single-circuit configurations.

Selection between these parts depends on mounting requirements:

• LR600301PR: Chassis mount configuration. Obsolete status limits availability.
• LFR600301PID: DIN rail mount configuration. Active product status ensures ongoing availability. ROHS3 compliant, meeting current environmental standards.

For new installations or system upgrades, the LFR600301PID is the preferred choice due to active product status and regulatory compliance. For direct replacement in existing chassis-mounted applications, mechanical adaptation may be required to accommodate the DIN rail mounting interface.

Frequently Asked Questions (FAQ)

Q: Can the LFR600301PID directly replace the LR600301PR?

A: Both components provide identical electrical performance and accept the same Class R cartridge fuses. The primary difference is mounting type: LR600301PR uses chassis mount, while LFR600301PID uses DIN rail mount. Substitution requires mechanical compatibility with the mounting surface.

Q: Are the fuses interchangeable between these two holders?

A: Yes. Both the LR600301PR and LFR600301PID accept Class R cartridge fuses measuring 0.813" diameter by 5" length. Any Class R fuse rated for 30 A at 600V is compatible with both holders.

Q: What is the difference between a fuse holder and a fuse block?

A: The LR600301PR is classified as a holder (chassis mount), while the LFR600301PID is classified as a block (DIN rail mount). Both serve identical electrical functions for single-circuit 30 A, 600V protection.

Q: Why is the LR600301PR listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The LFR600301PID is the active equivalent product from Littelfuse.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical characteristics. Both components provide equivalent 30 A, 600V protection regardless of RoHS status.