Equivalent & Substitute Parts for 0312030.H

Part Overview

The Littelfuse 0312030.H is a 30 A, 32 V AC/DC fast-blow glass fuse cartridge designed for 3AB and 3AG holder applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The fuse operates across a temperature range of -55°C to 125°C and is approved by CSA and UL agencies. Direct substitutes and parametric equivalents are available from both Littelfuse and Eaton to maintain circuit protection functionality.

Substiute Parts

0312030.H

Littelfuse Inc.In Stock: 9140312030.H Datasheet

Current PartRFQ

0312030.HXP

Littelfuse Inc.In Stock: 8750312030.HXP Datasheet

DirectRFQ

0312030.MXP

Littelfuse Inc.In Stock: 20590312030.MXP Datasheet

Parametric EquivalentRFQ

0312030.VXP

LittelfuseIn Stock: 9030312030.VXP Datasheet

Parametric EquivalentRFQ

AGC-30-R

Eaton - Electronics DivisionIn Stock: 915AGC-30-R Datasheet

Parametric EquivalentRFQ

BK/AGC-30-R

Eaton - Electronics DivisionIn Stock: 1987BK/AGC-30-R Datasheet

Parametric EquivalentRFQ

BK/AGC-30LX-R

Eaton - Electronics DivisionIn Stock: 1088BK/AGC-30LX-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0312030.H is determined by strict equivalence across the following parameters: current rating (30 A), voltage rating (32 V AC), fuse type (cartridge glass), response time (fast blow), and physical dimensions (0.250" Dia x 1.250" L). All substitute parts maintain these core electrical and mechanical specifications, ensuring direct compatibility within 3AB and 3AG holder applications.

Littelfuse substitutes (0312030.HXP, 0312030.MXP, 0312030.VXP) are direct manufacturer equivalents with identical electrical characteristics. Eaton substitutes (AGC-30-R, BK/AGC-30-R, BK/AGC-30LX-R) are parametric equivalents from an alternative manufacturer that meet the same functional requirements. Breaking capacity and melting I²t values vary among substitutes but do not affect basic substitution eligibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the 0312030.H, the Littelfuse substitutes 0312030.HXP, 0312030.MXP, and 0312030.VXP are preferred selections due to identical DC cold resistance (0.0019 Ohms) and active product status. These parts carry ROHS3 compliance and cULus or UL approvals, ensuring regulatory alignment with modern standards.

The Eaton AGC series (AGC-30-R, BK/AGC-30-R, BK/AGC-30LX-R) provides alternative sourcing from a different manufacturer while maintaining electrical and mechanical compatibility. These parts feature higher breaking capacity ratings (1kA to 10kA) and slightly elevated DC cold resistance (0.0024 Ohms). All Eaton substitutes are active products with CSA and UL approvals and ROHS3 compliance.

Selection between Littelfuse and Eaton substitutes depends on supply chain requirements, breaking capacity specifications for the application, and sourcing preferences. All listed substitutes are electrically and mechanically compatible within 3AB and 3AG holder applications.

Frequently Asked Questions (FAQ)

Q: Can 0312030.HXP, 0312030.MXP, and 0312030.VXP be used interchangeably with 0312030.H?

A: Yes. These Littelfuse parts are direct substitutes with identical current rating (30 A), voltage rating (32 V AC), fuse type (cartridge glass), response time (fast blow), physical dimensions (0.250" Dia x 1.250" L), and DC cold resistance (0.0019 Ohms). They are compatible with all 3AB and 3AG holder applications.

Q: What is the difference between Littelfuse and Eaton substitutes?

A: Littelfuse substitutes maintain identical DC cold resistance (0.0019 Ohms) to the original part. Eaton substitutes have slightly higher DC cold resistance (0.0024 Ohms) and higher breaking capacity ratings (1kA to 10kA versus 300A for Littelfuse). All maintain the same current, voltage, and physical specifications.

Q: Are Eaton AGC-30-R and BK/AGC-30-R functionally equivalent?

A: Yes. Both Eaton parts share identical electrical and mechanical parameters: 30 A current rating, 32 V AC voltage rating, fast-blow response, 0.250" Dia x 1.250" L dimensions, and 0.0024 Ohms DC cold resistance. Both are active products with CSA and UL approvals.

Q: What is the difference between BK/AGC-30-R and BK/AGC-30LX-R?

A: The primary difference is breaking capacity: BK/AGC-30-R is rated at 1kA, while BK/AGC-30LX-R is rated at 10kA. Both maintain identical current rating (30 A), voltage rating (32 V AC), response time (fast blow), physical dimensions, and DC cold resistance (0.0024 Ohms). Selection depends on the application's breaking capacity requirement.

Q: Are all substitutes RoHS compliant?

A: The original 0312030.H is RoHS non-compliant. All active substitutes (0312030.HXP, 0312030.MXP, 0312030.VXP, AGC-30-R, BK/AGC-30-R, BK/AGC-30LX-R) are ROHS3 compliant or RoHS compliant, meeting current environmental standards.

Q: Can these fuses be used in applications requiring higher breaking capacity?

A: Littelfuse substitutes provide 300A breaking capacity. Eaton AGC-30-R and BK/AGC-30-R provide 1kA breaking capacity. Eaton BK/AGC-30LX-R provides 10kA breaking capacity. Selection should match the application's circuit protection requirements.