Equivalent & Substitute Parts for 0NLS025.T

Part Overview

The 0NLS025.T is a 25A cartridge fuse manufactured by Littelfuse Inc. under the POWR-GARD® NLS series. This fast-blow fuse is rated for 600 VAC and 500 VDC operation with a breaking capacity of 50kA AC and 20kA DC. The part is actively produced and stocked, with ROHS3 compliance and multiple approval certifications including CE, CSA, and UL. Substitute parts are identified when equivalent electrical ratings, mechanical form factors, and regulatory compliance can be maintained for the same application requirements.

Substiute Parts

0NLS025.T

Littelfuse Inc.In Stock: 7820NLS025.T Datasheet

Current PartRFQ

NOS-25

Eaton - Bussmann Electrical DivisionIn Stock: 1007NOS-25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 0NLS025.T is based on the following critical parameters:

• Current Rating: 25A (exact match required)
• Voltage Ratings: 600 VAC and 500 VDC (exact match required)
• Response Time: Fast Blow (exact match required)
• Fuse Type: Cartridge form factor (exact match required)
• Mechanical Dimensions: 0.811" Dia x 5.000" L (exact match required for holder compatibility)
• Regulatory Compliance: Active product status with recognized certifications

The substitute part NOS-25 from Eaton - Bussmann Electrical Division meets these core electrical and mechanical requirements, enabling direct replacement in applications requiring identical circuit protection characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the 0NLS025.T and NOS-25 are active products with current manufacturing status and regulatory compliance. Selection between these parts should be based on:

• Availability and lead time requirements
• Procurement cost and inventory management
• Existing supply chain relationships with Littelfuse Inc. or Eaton - Bussmann Electrical Division
• Holder compatibility verification, as both parts require external fuse holders for installation

Both parts carry identical electrical ratings, mechanical dimensions, and regulatory certifications (CE, CSA, UL where applicable), making them functionally equivalent for circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can NOS-25 be used as a direct replacement for 0NLS025.T?

A: Yes. Both parts share identical current ratings (25A), voltage ratings (600 VAC / 500 VDC), response time (fast blow), and cartridge form factor. Mechanical dimensions are equivalent, ensuring compatibility with standard fuse holders designed for this size class.

Q: Are there any compliance differences between these parts?

A: Both parts are RoHS compliant and carry the same ECCN (EAR99) and HTSUS (8536.10.0040) classifications. Regulatory approval agencies may differ by region; verify specific certifications required for your application.

Q: What determines if a fuse can substitute for the 0NLS025.T?

A: Substitute fuses must match the current rating (25A), AC voltage rating (600 VAC), DC voltage rating (500 VDC), response time (fast blow), and physical dimensions (0.811" Dia x 5.000" L). Deviations in any of these parameters disqualify a part from substitution.

Q: Does the fuse holder need to be changed when switching between these parts?

A: No. Both the 0NLS025.T and NOS-25 are cartridge fuses with identical dimensions and require the same holder type. Existing holders are compatible with both parts.

Q: What is the breaking capacity difference, and does it affect substitution?

A: The 0NLS025.T specifies 50kA AC and 20kA DC breaking capacity. Substitute parts must maintain or exceed these ratings to ensure equivalent circuit protection performance. Verify breaking capacity specifications for the NOS-25 in your specific application context.