Equivalent & Substitute Parts for BK/ABC-B-15 Ceramic Cartridge Fuse

Part Overview

The BK/ABC-B-15 is a 15 A ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 250 V AC and 125 V DC operation. This fast-blow fuse is designed for use with 3AB, 3AG holders and requires external mounting hardware. The part is currently active in production with 923 pieces in stock.

Substitute parts are necessary when the original part number becomes unavailable, when alternative manufacturers are preferred for supply chain diversification, or when equivalent performance specifications are required across different product series or manufacturers.

Key Parameters

Parameter	Value
Current Rating	15 A
Voltage Rating - AC	250 V
Voltage Rating - DC	125 V
Fuse Type	Cartridge, Ceramic
Response Time	Fast Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4" (6.35mm x 31.75mm)
Breaking Capacity @ Rated Voltage	750A AC, 10kA DC
Mounting Type	Requires Holder
Approval Agencies	CSA, UL

Substitute Part Grouping Explanation

Substitution eligibility for the BK/ABC-B-15 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Current Rating: 15 A
Voltage Rating - AC: 250 V
Voltage Rating - DC: 125 V
Fuse Type: Cartridge, Ceramic
Response Time: Fast Blow
Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
Mounting Type: Requires Holder

Acceptable Variation Parameters:

Breaking Capacity: Minimum 750A AC and 10kA DC
DC Cold Resistance: Within normal manufacturing tolerance
Melting I²t: Variations permitted within ceramic fuse standards
RoHS Status: Both compliant and non-compliant parts are functionally equivalent
Approval Agencies: CSA, UL, or equivalent international certifications

All substitute parts listed below meet or exceed the mandatory matching parameters and are therefore electrically and mechanically interchangeable with the BK/ABC-B-15.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage AC (V)	Voltage DC (V)	Breaking Capacity AC	Breaking Capacity DC	DC Cold Resistance (Ohms)	Melting I²t	RoHS Status	Inventory (Pcs)
BK/ABC-B-15	Eaton	15	250	125	750A	10kA	0.005425	200.2	Non-compliant	923
ABC-15-R	Eaton	15	250	125	750A	10kA	0.00553	200.2	ROHS3 Compliant	1003
BK/ABC-15-R	Eaton	15	250	125	750A	10kA	0.00553	200.2	ROHS3 Compliant	3845
BK/ABC-15DD-R	Eaton	15	250	125	750A	10kA	0.00553	200.2	ROHS3 Compliant	892
BK/GBB-15-R	Eaton	15	250	125	10kA	10kA	0.00472	Not specified	ROHS3 Compliant	990
BK1/ABC-15AX-R	Eaton	15	250	125	750A	10kA	0.00553	200.2	ROHS3 Compliant	2091
0314015.HXP	Littelfuse	15	250	125	750A	10kA	0.00505	292	ROHS3 Compliant	1705
0314015.MXANP	Littelfuse	15	250	125	750A	10kA	0.00505	292	ROHS3 Compliant	4560
0314015.MXP	Littelfuse	15	250	125	750A	10kA	0.00505	292	ROHS3 Compliant	2850
0314015.VXP	Littelfuse	15	250	125	750A	10kA	0.00505	292	ROHS3 Compliant	1098

Engineering Selection Recommendations

Eaton Series Substitutes (ABC and GBB Series):

The Eaton-manufactured substitutes ABC-15-R, BK/ABC-15-R, BK/ABC-15DD-R, BK1/ABC-15AX-R, and BK/GBB-15-R are direct functional equivalents to the BK/ABC-B-15. All maintain identical electrical ratings and mechanical compatibility. The primary distinction is RoHS3 compliance status in the newer variants. BK/ABC-15-R offers the highest inventory availability at 3845 pieces, making it the preferred choice for supply continuity. BK/GBB-15-R operates under the GBB series designation with equivalent performance characteristics.

Littelfuse Series Substitutes (314 Series):

The Littelfuse 314 series fuses (0314015.HXP, 0314015.MXANP, 0314015.MXP, 0314015.VXP) provide cross-manufacturer equivalence with identical electrical and mechanical specifications. These parts feature expanded operating temperature range (-55°C to 125°C) and broader approval agency certifications including CE, CSA, K-MARK, and UL. The 0314015.MXANP variant has the highest inventory level at 4560 pieces. Littelfuse parts carry higher melting I²t values (292 versus 200.2), which remains within acceptable ceramic fuse performance parameters.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant except the original BK/ABC-B-15. Organizations with RoHS compliance requirements should select from the compliant variants. All parts maintain CSA and UL certifications or equivalent international approvals required for circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can I use a Littelfuse 314 series fuse as a direct replacement for the Eaton ABC series?

A: Yes. The Littelfuse 0314015 series fuses are electrically and mechanically equivalent to the BK/ABC-B-15. Both manufacturers' products meet identical current, voltage, breaking capacity, and package specifications. The fuses are interchangeable within the same 3AB/3AG holder.

Q: What is the difference between the various Eaton part numbers (ABC-15-R, BK/ABC-15-R, BK/ABC-15DD-R)?

A: These part numbers represent different manufacturing variants within the Eaton ABC series, all with identical electrical and mechanical specifications. The differences are in internal construction codes and RoHS compliance status. All are functionally equivalent for circuit protection applications.

Q: Does the higher melting I²t value in Littelfuse parts (292 versus 200.2) affect compatibility?

A: No. The melting I²t value is a characteristic of ceramic fuse construction and does not affect interchangeability. Both values fall within standard ceramic fuse performance ranges and maintain the same 15 A current rating and fast-blow response time.

Q: Are there any temperature rating differences I should consider?

A: The original BK/ABC-B-15 does not specify an operating temperature range. Littelfuse 314 series parts specify -55°C to 125°C operation. This expanded range in Littelfuse parts does not create incompatibility; it indicates broader environmental suitability.

Q: Which substitute part should I select for maximum inventory availability?

A: The 0314015.MXANP (Littelfuse) offers the highest inventory at 4560 pieces, followed by BK/ABC-15-R (Eaton) at 3845 pieces. Both are suitable for immediate procurement.

Q: Do all substitute parts require the same holder as the original BK/ABC-B-15?

A: Yes. All substitute parts are specified for 3AB, 3AG holders with 1/4" x 1-1/4" (6.35mm x 31.75mm) dimensions. No holder modification or replacement is required.

Q: What approval agencies certify these fuses for use?

A: The original BK/ABC-B-15 carries CSA and UL approvals. Eaton substitutes maintain CSA and UL certifications. Littelfuse 314 series parts carry CE, CSA, K-MARK, and UL certifications, providing broader international compliance coverage.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message