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

Part Overview

The BK/ABC-15 is a 15 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation, manufactured by Eaton Electronics Division. This component is classified as obsolete product status. The fuse requires a compatible holder (3AB, 3AG format) and is designed for fast-blow response applications. Due to its obsolete classification, equivalent and substitute parts from active product lines are available to maintain circuit protection functionality in existing and new designs.

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)
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	750A AC, 10kA DC
Melting I²t	200.2
Approval Agencies	CSA, UL

Substitute Part Grouping Explanation

Substitution of the BK/ABC-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" (6.35mm x 31.75mm)
Mounting Type: Requires Holder

Acceptable Variation Parameters:

Breaking Capacity @ Rated Voltage (within functional range)
Melting I²t (within functional range)
DC Cold Resistance (minor variations acceptable)
RoHS Compliance Status (both compliant and non-compliant parts listed)
Approval Agencies (CSA, UL, UR, CE, K-MARK acceptable)

All substitute parts listed maintain identical electrical and mechanical specifications for the mandatory parameters, ensuring direct functional replacement in applications designed for the BK/ABC-15.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	DC Cold Resistance (Ω)	Product Status	RoHS Status
BK/ABC-15	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.005425	Obsolete	Non-compliant
ABC-15-R	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.00553	Active	ROHS3 Compliant
BK/ABC-15-R	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.00553	Active	ROHS3 Compliant
BK/ABC-15DD-R	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.00553	Active	ROHS3 Compliant
BK/ABC-15KK	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.00553	Active	Non-compliant
BK/ABC-B-15	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.005425	Active	Non-compliant
BK/GBB-15-R	Eaton	15	250	125	Fast Blow	10kA	10kA	Not specified	0.00472	Active	ROHS3 Compliant
BK1/ABC-15AX-R	Eaton	15	250	125	Fast Blow	750A	10kA	200.2	0.00553	Active	ROHS3 Compliant
GBB-15-R	Eaton	15	250	125	Fast Blow	200A	10kA	0.0735	0.00472	Active	ROHS3 Compliant
0314015.HXP	Littelfuse	15	250	125	Fast Blow	750A	10kA	292	0.00505	Active	ROHS3 Compliant
0314015.MXANP	Littelfuse	15	250	125	Fast Blow	750A	10kA	292	0.00505	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Eaton ABC Series - Active Status):

ABC-15-R, BK/ABC-15-R, and BK/ABC-15DD-R are direct functional equivalents with active product status. These parts maintain identical electrical specifications and are available in ROHS3 compliant versions, making them suitable for new designs and legacy system replacements. BK/ABC-15-R offers the highest inventory availability (3845 units).

Alternative Eaton Substitutes:

BK/ABC-15KK and BK/ABC-B-15 are active alternatives with identical electrical parameters but non-compliant RoHS status. These are suitable for applications where RoHS compliance is not required. BK1/ABC-15AX-R provides ROHS3 compliance with active status and high inventory (2091 units).

Series Variants (Eaton GBB Series):

BK/GBB-15-R and GBB-15-R are parametric equivalents from the GBB series with active status and ROHS3 compliance. These parts differ in breaking capacity specifications and are approved under CSA and UR agencies. GBB-15-R exhibits reduced AC breaking capacity (200A) and lower melting I²t (0.0735), requiring evaluation for specific application requirements.

Cross-Manufacturer Substitute (Littelfuse):

0314015.HXP and 0314015.MXANP are Littelfuse ceramic cartridge fuses with identical electrical ratings and active product status. Both are ROHS3 compliant with extended operating temperature range (-55°C to 125°C) and multiple approval agencies (CE, CSA, K-MARK, UL). Melting I²t is 292, higher than the Eaton ABC series (200.2), which may affect response characteristics in sensitive applications.

Compliance Considerations:

For applications requiring RoHS3 compliance, select from: ABC-15-R, BK/ABC-15-R, BK/ABC-15DD-R, BK/GBB-15-R, BK1/ABC-15AX-R, GBB-15-R, 0314015.HXP, or 0314015.MXANP.

For applications with extended temperature requirements, 0314015.HXP and 0314015.MXANP support -55°C to 125°C operation.

Frequently Asked Questions (FAQ)

Q: Can BK/ABC-15 be directly replaced with ABC-15-R?

A: Yes. ABC-15-R is a direct functional equivalent with identical current rating (15 A), voltage ratings (250 V AC, 125 V DC), response time (Fast Blow), and package format (3AB, 3AG, 1/4" x 1-1/4"). ABC-15-R has active product status and ROHS3 compliance, making it suitable for direct substitution.

Q: What is the difference between BK/ABC-15-R and BK/ABC-15DD-R?

A: Both parts are functionally identical with matching electrical specifications, current ratings, voltage ratings, and response times. The designation difference reflects internal manufacturing or specification variants. Both are active products with ROHS3 compliance and identical breaking capacity (750A AC, 10kA DC).

Q: Are Littelfuse 0314015.HXP and 0314015.MXANP compatible replacements?

A: Yes, both Littelfuse parts are parametric equivalents with identical current rating (15 A), voltage ratings (250 V AC, 125 V DC), response time (Fast Blow), and package format (3AB, 3AG, 1/4" x 1-1/4"). Both are ROHS3 compliant and active products. The melting I²t value (292) is higher than Eaton ABC series (200.2), which may result in slightly different thermal response characteristics.

Q: Why do some substitutes show different breaking capacity values?

A: Breaking capacity specifications vary based on manufacturer design and testing standards. GBB-15-R shows 200A AC breaking capacity compared to 750A AC for ABC series, while maintaining identical 10kA DC capacity. Application requirements determine whether this variation is acceptable. Consult circuit protection specifications for your application.

Q: Can I use BK/GBB-15-R as a substitute for BK/ABC-15?

A: BK/GBB-15-R is a parametric equivalent with identical current rating (15 A), voltage ratings (250 V AC, 125 V DC), response time (Fast Blow), and package format. However, it is approved under CSA and UR agencies (versus CSA and UL for the original part) and has different DC cold resistance (0.00472 Ω versus 0.005425 Ω). Verify that UR approval meets your application requirements.

Q: What is the inventory status for active substitutes?

A: BK/ABC-15-R has 3845 units in stock (highest availability). BK1/ABC-15AX-R has 2091 units. 0314015.MXANP (Littelfuse) has 4560 units (highest overall). ABC-15-R has 1003 units. All other active substitutes have between 889 and 1087 units available.

Q: Are all substitute parts compatible with 3AB and 3AG fuse holders?

A: Yes. All substitute parts listed maintain the identical package format (3AB, 3AG, 1/4" x 1-1/4" / 6.35mm x 31.75mm) and require compatible fuse holders. Physical dimensions are identical across all listed parts.

Q: Which substitute offers the best RoHS compliance and temperature range?

A: 0314015.HXP and 0314015.MXANP (Littelfuse) offer ROHS3 compliance with extended operating temperature range (-55°C to 125°C). Eaton alternatives with ROHS3 compliance do not specify operating temperature range in the provided data.

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