BK/SC-30 Equivalent & Substitute Parts

Part Overview

The BK/SC-30 is a ceramic cartridge fuse rated for 30A at 480VAC and 300VDC, manufactured by Eaton - Bussmann Electrical Division. This component is classified as Active product status and requires a dedicated fuse holder for installation. Substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional characteristics to ensure direct compatibility in circuit protection applications.

Substiute Parts

BK/SC-30

Eaton - Bussmann Electrical DivisionIn Stock: 1257BK/SC-30 Datasheet

Current PartRFQ

SC-30

Eaton - Bussmann Electrical DivisionIn Stock: 1249SC-30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/SC-30 are identified through parametric equivalence. The substitution logic is based on the following critical parameters that must match exactly:

• Current Rating: 30 A
• Voltage Rating - AC: 480 V
• Voltage Rating - DC: 300 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Breaking Capacity @ Rated Voltage: 100kA AC, 10kA DC
• Size / Dimension: 0.410" Dia x 1.620" L (10.41mm x 41.15mm)
• Mounting Type: Requires Holder
• Approval Agency: CE, CSA, UL

Parts meeting all these parameters are classified as parametric equivalents and may be used interchangeably in applications requiring the BK/SC-30.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/SC-30 and SC-30 are Active status products manufactured by Eaton - Bussmann Electrical Division with identical electrical and mechanical specifications. Both parts carry CE, CSA, and UL approvals, confirming compliance with international safety standards. The SC-30 variant demonstrates ROHS3 compliance, indicating adherence to the latest Restriction of Hazardous Substances directive. Selection between these parts may be based on specific regulatory requirements or inventory availability, as all functional parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can SC-30 be used as a direct replacement for BK/SC-30?

A: Yes. Both parts are parametric equivalents with identical current ratings (30A), voltage ratings (480VAC/300VDC), ceramic cartridge construction, slow-blow response time, breaking capacity (100kA AC, 10kA DC), and physical dimensions (0.410" Dia x 1.620" L). Both require a compatible fuse holder and carry the same approval agencies (CE, CSA, UL).

Q: What are the critical parameters for substitution?

A: Substitution requires exact matching of current rating (30A), AC voltage (480V), DC voltage (300V), fuse type (ceramic cartridge), response time (slow blow), breaking capacity (100kA AC, 10kA DC), physical dimensions (0.410" Dia x 1.620" L), and mounting requirement (holder-based installation).

Q: Are there differences in compliance between BK/SC-30 and SC-30?

A: Both parts are REACH Unaffected. The SC-30 is ROHS3 Compliant while the BK/SC-30 is RoHS Compliant. Both meet international safety standards through CE, CSA, and UL approvals.

Q: Does the fuse holder compatibility differ between these parts?

A: No. Both parts are cartridge, non-standard format fuses requiring a dedicated holder. Physical dimensions are identical (0.410" Dia x 1.620" L), ensuring compatibility with the same holder assemblies.