LR602003C Equivalent & Substitute Parts

Part Overview

The LR602003C is a Class R fuse holder rated for 200 A at 600V, designed for 3-circuit cartridge fuses with chassis mount configuration. This component is classified as obsolete, making identification of compatible alternatives essential for system maintenance and replacement applications. The LR602003C accepts Class R cartridge fuses measuring 1.839" diameter by 9.626" length and terminates via box lug connections.

Substiute Parts

LR602003C

Littelfuse Inc.In Stock: 886LR602003C Datasheet

Current PartRFQ

LFR602003C

Littelfuse Inc.In Stock: 1052LFR602003C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LR602003C is determined by the following critical parameters:

• Current Rating: 200 A (exact match required)
• Voltage Rating: 600V (exact match required)
• Number of Circuits: 3 (exact match required)
• Fuse Type: Cartridge (exact match required)
• Fuse Size: 1.839" Dia x 9.626" L (exact match required)
• Termination Style: Box Lug (exact match required)
• For Use With/Related Products: Class R Fuses (exact match required)

The substitute part LFR602003C meets all critical electrical and mechanical parameters. The primary difference is the mounting configuration: LFR602003C uses DIN Rail mounting instead of chassis mount, and is classified as active product status with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The LFR602003C is a direct functional equivalent for the obsolete LR602003C based on identical electrical ratings (200 A, 600V, 3-circuit) and mechanical compatibility (cartridge fuse type, identical fuse dimensions, box lug termination). Both components accept Class R fuses without modification.

The LFR602003C offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, ROHS3 compliance of the LFR602003C aligns with current environmental and regulatory standards, whereas the LR602003C is RoHS non-compliant.

The primary consideration is mounting configuration: the LR602003C is chassis mount while the LFR602003C is DIN Rail mount. Selection between these options depends on the physical installation requirements of the target application. Both maintain identical electrical performance and fuse compatibility.

Frequently Asked Questions (FAQ)

Q: Can LFR602003C directly replace LR602003C in existing installations?

A: Electrical and mechanical compatibility is confirmed. Both components accept identical Class R cartridge fuses (1.839" Dia x 9.626" L), operate at 200 A and 600V, and use box lug termination. The difference is mounting type: LR602003C requires chassis mount space, while LFR602003C requires DIN rail space. Physical installation compatibility must be verified for your specific enclosure.

Q: What is the significance of the product status difference?

A: LR602003C is classified as obsolete, indicating discontinued manufacturing and limited future availability. LFR602003C is active product status, confirming ongoing production and supply chain support. For new designs or long-term maintenance planning, the active LFR602003C is the preferred choice.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance relates to material composition and environmental standards, not electrical performance. Both LR602003C and LFR602003C deliver identical electrical ratings and fuse protection characteristics. The ROHS3 compliance of LFR602003C reflects current manufacturing standards and regulatory alignment.

Q: Are the fuse cartridges interchangeable between these two holders?

A: Yes. Both LR602003C and LFR602003C accept Class R cartridge fuses of identical dimensions (1.839" Dia x 9.626" L). Fuse selection is independent of holder mounting type.

Q: What determines if a part can substitute for LR602003C?

A: Substitution requires exact matching of: current rating (200 A), voltage rating (600V), number of circuits (3), fuse type (cartridge), fuse dimensions (1.839" Dia x 9.626" L), termination style (box lug), and fuse compatibility (Class R). Mounting type may differ based on installation requirements.