Equivalent & Substitute Parts for 0RLN025.T

Part Overview

The 0RLN025.T is a 25A 250VAC fast-blow cartridge fuse from Littelfuse Inc.'s POWR-GARD® RLN series. This component is classified as obsolete, requiring identification of suitable alternatives for new designs and maintenance applications. The part is designed for electrical and industrial applications where cartridge-style fuse holders are employed. Due to its obsolete status, substitute parts with equivalent or enhanced electrical characteristics are necessary for procurement and system continuity.

Substiute Parts

0RLN025.T

Littelfuse Inc.In Stock: 8030RLN025.T Datasheet

Current PartRFQ

KLNR025.T

Littelfuse Inc.In Stock: 1187KLNR025.T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0RLN025.T is determined by the following critical parameters:

• Current Rating: Must be 25A to match load protection requirements
• Voltage Rating - AC: Must be minimum 250 VAC for AC circuit compatibility
• Physical Dimensions: Must be 0.563" Dia x 2.000" L to fit existing cartridge holders
• Fuse Type: Must be cartridge format for mechanical compatibility
• Response Time: Fast-blow characteristic for protection of sensitive circuits
• Mounting Configuration: Must require holder-based installation

The KLNR025.T meets all mandatory substitution criteria while providing enhanced electrical performance through higher breaking capacity and dual-voltage capability (250 VAC / 125 VDC). The KLNR025.T maintains identical physical dimensions and mounting requirements, ensuring direct mechanical compatibility with existing fuse holders designed for the 0RLN025.T.

Parameter Comparison

Engineering Selection Recommendations

The KLNR025.T is the direct substitute for the obsolete 0RLN025.T. Both components share identical current ratings, AC voltage ratings, physical dimensions, and mounting requirements, ensuring mechanical and electrical compatibility within existing systems.

The KLNR025.T provides enhanced performance characteristics: breaking capacity increases from 10kA to 200kA AC, and the part adds 125 VDC capability for mixed-voltage applications. The KLNR025.T holds active product status with full CE, CSA, and UL certifications matching the original part. Additionally, the KLNR025.T achieves ROHS3 compliance, addressing modern regulatory requirements that the obsolete 0RLN025.T does not meet.

For new designs and replacement applications, the KLNR025.T is the appropriate selection. The part is currently in stock with 1103 units available, ensuring supply continuity.

Frequently Asked Questions (FAQ)

Q: Can the KLNR025.T be used as a direct replacement for the 0RLN025.T in existing equipment?

A: Yes. Both parts share identical current ratings (25A), AC voltage ratings (250 VAC), physical dimensions (0.563" Dia x 2.000" L), and mounting requirements (cartridge holder). The KLNR025.T will function identically in any application designed for the 0RLN025.T.

Q: What is the difference between Class H and Class RK1 fuses?

A: Class H and Class RK1 are fuse classifications that define breaking capacity and application scope. The KLNR025.T (Class RK1) provides significantly higher breaking capacity (200kA AC versus 10kA) and is suitable for a broader range of industrial applications. Both classes are fast-blow cartridge fuses rated for 25A at 250 VAC.

Q: Does the KLNR025.T add any new capabilities compared to the 0RLN025.T?

A: The KLNR025.T adds 125 VDC voltage rating capability, making it suitable for DC circuit protection in addition to AC applications. This expanded voltage range does not affect AC-only applications but provides flexibility for mixed-voltage systems.

Q: Is the KLNR025.T RoHS compliant?

A: Yes. The KLNR025.T is ROHS3 compliant, meeting current environmental and material restriction standards. The obsolete 0RLN025.T is not RoHS compliant.

Q: Are both parts certified by the same approval agencies?

A: Yes. Both the 0RLN025.T and KLNR025.T carry CE, CSA, and UL certifications, ensuring compliance with international electrical safety standards.

Q: What is the physical compatibility between these parts and existing fuse holders?

A: Both parts are identical in physical dimensions (0.563" Dia x 2.000" L / 14.30mm x 50.80mm) and require cartridge-style fuse holders. No mechanical modifications to existing equipment are necessary when substituting the KLNR025.T for the 0RLN025.T.