Littelfuse 0RLN080.V Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The Littelfuse 0RLN080.V is an 80A 250VAC cylindrical fuse cartridge from the POWR-GARD® RLN series, designed for electrical and industrial applications requiring fast-blow response characteristics. This part is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility while meeting current availability and compliance requirements.

Substiute Parts

0RLN080.V

Littelfuse Inc.In Stock: 7840RLN080.V Datasheet

Current PartRFQ

KLNR080.V

Littelfuse Inc.In Stock: 1106KLNR080.V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse KLNR080.V qualifies as a functional substitute based on the following alignment of critical parameters:

• Current Rating: Both parts rated at 80A
• AC Voltage Rating: Both rated at 250 VAC
• Fuse Type: Both are cartridge-type fuses
• Response Time: Both exhibit fast-blow characteristics
• Package / Case: Both feature cylindrical design with blade terminals
• Mounting Type: Both require a holder for installation
• Manufacturer: Both manufactured by Littelfuse Inc.
• Approval Agencies: Both carry CE, CSA, and UL certifications

The KLNR080.V represents an active product with enhanced specifications, including additional DC voltage rating capability (125 VDC) and superior breaking capacity (200kA AC vs. 10kA AC), while maintaining full compatibility with the 250 VAC 80A primary application parameters.

Parameter Comparison

Engineering Selection Recommendations

The KLNR080.V is the designated active substitute for the obsolete 0RLN080.V. Selection of the KLNR080.V is supported by:

• Product Status: The KLNR080.V maintains active production status, ensuring long-term availability and supply chain continuity
• Functional Equivalence: Identical current and AC voltage ratings preserve circuit protection characteristics for 250 VAC 80A applications
• Certification Alignment: Both parts carry identical approval agencies (CE, CSA, UL), maintaining regulatory compliance
• Enhanced Compliance: The KLNR080.V achieves ROHS3 compliance, addressing modern environmental and regulatory requirements
• Improved Performance: The KLNR080.V provides significantly higher breaking capacity (200kA AC), offering superior fault protection margins

Physical dimension differences (length: 3.874" vs. 5.874") must be verified for compatibility with existing fuse holder installations prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the KLNR080.V directly replace the 0RLN080.V in existing installations?

A: The KLNR080.V maintains electrical equivalence for 250 VAC 80A applications. Physical compatibility depends on the fuse holder design. The KLNR080.V is 2.0 inches longer (5.874" vs. 3.874"), requiring verification that the holder accommodates this increased length.

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

A: Both are fast-blow cartridge fuse classes. Class H fuses have a breaking capacity of 10kA, while Class RK1 fuses have a breaking capacity of 200kA AC. The KLNR080.V's higher breaking capacity provides enhanced protection in circuits with higher available fault currents.

Q: Does the KLNR080.V's additional 125 VDC rating affect its use in 250 VAC applications?

A: No. The KLNR080.V is rated for both 250 VAC and 125 VDC operation. In 250 VAC applications, only the AC rating applies. The additional DC rating expands application flexibility without affecting AC circuit performance.

Q: Why is the KLNR080.V longer than the 0RLN080.V?

A: The increased length is associated with the Class RK1 design, which incorporates enhanced breaking capacity characteristics. Physical fit verification with the existing fuse holder is required before substitution.

Q: Are both parts manufactured by the same company?

A: Yes. Both the 0RLN080.V and KLNR080.V are manufactured by Littelfuse Inc., ensuring consistent quality standards and design philosophy across the product families.

Q: What does ROHS3 compliance mean for the KLNR080.V?

A: ROHS3 compliance indicates the KLNR080.V meets the Restriction of Hazardous Substances Directive, restricting the use of specific hazardous materials. This supports environmental and regulatory requirements in modern applications.