Littelfuse 0LKS002.S Equivalent & Substitute Parts

Part Overview

The Littelfuse 0LKS002.S is a 2A 600VAC fast-blow fuse link cartridge designed for electrical and industrial applications. This component is classified as obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement. The fuse link requires a holder for installation and operates within the POWR-GARD® LKS series. Due to its obsolete status, sourcing equivalent parts with matching electrical and mechanical specifications is necessary for continued system operation.

Substiute Parts

0LKS002.S

Littelfuse Inc.In Stock: 8750LKS002.S Datasheet

Current PartRFQ

KLSR002.T

Littelfuse Inc.In Stock: 1249KLSR002.T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0LKS002.S is determined by the following critical electrical and mechanical parameters:

• Current Rating: 2A (must match exactly)
• Voltage Rating - AC: 600 VAC (must match or exceed)
• Response Time: Fast Blow (must match)
• Mounting Type: Requires Holder (must match)
• Approval Agencies: CE, CSA, UL (must maintain compliance)

The KLSR002.T meets these core substitution criteria. While it operates in a different fuse class (RK1 versus H) and exhibits higher breaking capacity, it maintains electrical compatibility at the specified current and voltage ratings. The KLSR002.T is an active product with enhanced specifications and improved compliance status, making it suitable for direct replacement in applications where the 0LKS002.S is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The KLSR002.T is the manufacturer-recommended substitute for the 0LKS002.S. Both components maintain identical current ratings (2A) and AC voltage ratings (600 VAC), with matching fast-blow response characteristics and holder-based mounting requirements. Both components carry CE, CSA, and UL approvals, ensuring regulatory compliance across industrial and electrical applications.

The KLSR002.T offers enhanced specifications including DC voltage capability (250 VDC), significantly higher breaking capacity (200kA AC versus 10kA), and ROHS3 compliance status. The substitute component is currently in active production, ensuring long-term availability and supply chain stability compared to the obsolete 0LKS002.S.

Physical dimensions differ slightly in length (127.00mm versus 95.20mm), with identical diameter specifications (20.60mm). Verification of holder compatibility with the increased length is necessary prior to installation.

Frequently Asked Questions (FAQ)

Q: Can the KLSR002.T directly replace the 0LKS002.S in all applications?

A: The KLSR002.T matches the critical electrical parameters (2A, 600 VAC, fast-blow response) and maintains identical approval certifications. Physical length differs by approximately 31.2mm, requiring verification that the fuse holder accommodates the longer cartridge dimension.

Q: What is the difference between fuse class H and RK1?

A: Both classes are fast-blow fuses suitable for electrical and industrial protection. Class H fuses operate at 10kA breaking capacity, while RK1 fuses provide 200kA AC breaking capacity. The RK1 classification indicates enhanced fault current handling capability.

Q: Does the KLSR002.T's DC voltage rating affect AC-only applications?

A: No. The KLSR002.T maintains full compatibility with 600 VAC applications. The additional 250 VDC rating extends the component's applicability to mixed-voltage systems without affecting AC performance.

Q: Is RoHS3 compliance required for replacement?

A: RoHS3 compliance is a regulatory advantage for new installations and long-term supply chain sustainability. The KLSR002.T's compliance status ensures compatibility with modern environmental and procurement standards.

Q: What is the impact of the dimensional difference on installation?

A: The KLSR002.T is 31.2mm longer than the 0LKS002.S. Fuse holders must physically accommodate this length. Verify holder specifications before ordering to ensure proper seating and electrical contact.