BP/NON-25 Equivalent & Substitute Parts

Part Overview

The BP/NON-25 is a 25A cartridge fuse rated for 250 VAC and 125 VDC operation, manufactured by Eaton - Bussmann Electrical Division. This component is classified as discontinued at DiGi Electronics, requiring identification of active equivalent parts for ongoing procurement and system maintenance. The cartridge fuse requires a compatible holder for installation and is designed for electrical and industrial applications with a breaking capacity of 50kA at rated voltage.

Substiute Parts

BP/NON-25

Eaton - Bussmann Electrical DivisionIn Stock: 790BP/NON-25 Datasheet

Current PartRFQ

0NLN025.T

LittelfuseIn Stock: 10570NLN025.T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BP/NON-25 is determined by the following critical parameters:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 250 VAC (exact match required)
• Voltage Rating - DC: Minimum 125 VDC (equal or higher acceptable)
• Fuse Type: Cartridge (exact match required)
• Class: K5 (exact match required)
• Physical Dimensions: Cartridge form factor compatible with standard holders
• Approval Agencies: CE, CSA, UL certifications required

The substitute part 0NLN025.T meets all critical substitution criteria. The DC voltage rating of 250 VDC on the substitute exceeds the 125 VDC requirement of the original part, providing enhanced capability within the same electrical classification.

Parameter Comparison

Engineering Selection Recommendations

The 0NLN025.T from Littelfuse is the direct equivalent for the discontinued BP/NON-25. Selection is based on:

• Identical current and AC voltage ratings
• Enhanced DC voltage rating (250 VDC vs. 125 VDC) providing operational margin
• Matching K5 fuse class and breaking capacity for AC applications
• Identical mechanical form factor and holder compatibility
• Full compliance with CE, CSA, and UL approval requirements
• Active product status with confirmed inventory availability
• ROHS3 compliance meeting current regulatory standards

The substitute part is suitable for direct replacement in existing electrical and industrial applications without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the 0NLN025.T replace the BP/NON-25 in all applications?

A: Yes. The substitute meets all critical electrical parameters: 25A current rating, 250 VAC, and exceeds the DC voltage requirement at 250 VDC. Both parts are K5 class cartridge fuses with identical mechanical dimensions and holder compatibility.

Q: What is the significance of the higher DC voltage rating on the substitute?

A: The 0NLN025.T is rated for 250 VDC compared to the original 125 VDC. This higher rating does not affect AC circuit operation and provides additional capability for DC applications without compromising performance in the original circuit.

Q: Are the physical dimensions identical?

A: The dimensions are mechanically compatible. The original is 0.560" diameter; the substitute is 0.563" diameter. Both are 2.000" length. These minor variations remain within standard cartridge fuse holder tolerances.

Q: Do both parts carry the same certifications?

A: Yes. Both the BP/NON-25 and 0NLN025.T hold CE, CSA, and UL approvals, meeting identical regulatory requirements for electrical and industrial applications.

Q: What is the difference in breaking capacity between AC and DC ratings?

A: The 0NLN025.T specifies 50kA AC and 20kA DC breaking capacity. For AC circuits matching the original 250 VAC application, the 50kA AC rating is directly equivalent to the BP/NON-25 specification.