SCHURTER 0034.5230 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.5230 is a 1.8 A, 250 V AC/DC slow-blow glass cartridge fuse with a 3AB/3AG form factor (1/4" x 1-1/4"). This component is classified as Obsolete and requires a compatible fuse holder for installation. Due to its obsolete status, equivalent substitute parts with active product availability are necessary for ongoing system maintenance and new designs requiring similar electrical protection characteristics.

Substiute Parts

0034.5230

SCHURTER Inc.In Stock: 9860034.5230 Datasheet

Current PartRFQ

8020.5014

SCHURTER Inc.In Stock: 19748020.5014 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0034.5230 is determined by the following critical parameters:

Physical Compatibility:

• Identical physical dimensions (0.250" Dia x 1.252" L / 6.35mm x 31.80mm) ensure mechanical fit in existing 3AB/3AG holders

Electrical Compatibility:

• Current rating must accommodate the circuit protection requirement
• Voltage rating must equal or exceed the system voltage (250 V AC minimum)
• Response time classification (Slow Blow) must match the application's inrush current tolerance
• Breaking capacity must be sufficient for the circuit's maximum fault current

Regulatory Compliance:

• Approval agencies (CSA, UL, cURus) validate safety and performance standards

The SCHURTER 8020.5014 meets the physical dimension requirement and maintains the slow-blow response characteristic. However, it introduces differences in material composition (ceramic vs. glass), current rating (2 A vs. 1.8 A), voltage rating (500 V vs. 250 V), and breaking capacity (1.5 kA vs. 100 A).

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SCHURTER 0034.5230 is classified as Obsolete. The SCHURTER 8020.5014 is classified as Active, providing assured long-term availability and supply chain continuity.

Compliance and Certification: The main part carries CSA and UL approvals. The substitute part carries cURus approval, which encompasses both Canadian and U.S. regulatory recognition. Both parts meet recognized safety standards for fuse cartridges.

Electrical Parameter Differences: The substitute part (8020.5014) has a higher current rating (2 A vs. 1.8 A), higher voltage rating (500 V vs. 250 V), and significantly higher breaking capacity (1.5 kA vs. 100 A). These characteristics provide enhanced protection margins in higher-voltage or higher-fault-current applications. The lower melting I²t value (10.5 vs. 33.4) indicates faster thermal response at elevated currents.

Material and Environmental Considerations: The substitute part uses ceramic construction instead of glass and includes specified operating temperature range (-40°C ~ 85°C) and RoHS3 compliance, indicating suitability for modern electronic systems with environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 8020.5014 directly replace the 0034.5230 in existing installations?

A: Physical compatibility is confirmed—both parts share identical dimensions (0.250" Dia x 1.252" L) and fit standard 3AB/3AG holders. However, electrical circuit analysis is required. The substitute has a higher current rating (2 A vs. 1.8 A) and voltage rating (500 V vs. 250 V), which may alter circuit protection characteristics. Verify that the higher current rating does not compromise protection for the specific circuit application.

Q: What is the significance of the different melting I²t values?

A: The melting I²t value (33.4 for 0034.5230 vs. 10.5 for 8020.5014) indicates the thermal energy required to melt the fuse element. The lower value in the substitute part means it responds faster to overcurrent conditions at elevated current levels. This difference affects the fuse's time-current characteristic and must be evaluated against circuit requirements.

Q: Are there compatibility issues with the fuse holder?

A: Both parts require a compatible fuse holder and share the same physical form factor (3AB/3AG, 1/4" x 1-1/4"). Existing holders designed for the 0034.5230 will mechanically accommodate the 8020.5014. Verify that the holder is rated for the substitute part's voltage and current specifications.

Q: What is the difference between glass and ceramic fuse construction?

A: The main part uses glass construction; the substitute uses ceramic construction. Ceramic fuses typically offer higher breaking capacity, better thermal stability, and improved performance in high-fault-current environments. Both materials are approved for safety-critical applications.

Q: Does the substitute part meet the same regulatory standards?

A: The main part carries CSA and UL approvals. The substitute part carries cURus approval, which provides equivalent regulatory recognition in North American markets. Both certifications validate compliance with recognized safety standards for fuse cartridges.

Q: Is the substitute part RoHS compliant?

A: Yes, the SCHURTER 8020.5014 is ROHS3 compliant and REACH unaffected. The main part's RoHS status is not specified in the provided data.