Equivalent & Substitute Parts for Mersen 62003J Fuse Block

Part Overview

The Mersen 62003J is a Class J spring reinforced fuse block designed for electrical distribution and protection applications. This component is classified as active product status and maintains ROHS3 compliance. Alternative equivalent parts may be required due to inventory availability, regional sourcing preferences, or specific application requirements where compatible electrical and mechanical parameters are maintained.

Substiute Parts

62003J

Mersen USA Newburyport-MA L.L.C.In Stock: 71162003J Datasheet

Current PartRFQ

LFJ602003C

Littelfuse Inc.In Stock: 974LFJ602003C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Mersen 62003J is based on the following critical parameters:

• Fuse Block Type: Class J spring reinforced construction
• Electrical Rating: 600V, 200A capacity
• Circuit Configuration: 3-circuit cartridge design
• Mounting Standard: DIN Rail compatibility
• Fuse Size: 1.625" Dia x 5.75" L (41.28mm x 146.05mm)
• Termination: Box lug connection style
• Compliance: ROHS3 compliance requirement

The substitute part LFJ602003C meets these parameters and is therefore classified as an equivalent alternative.

Parameter Comparison

Engineering Selection Recommendations

Both the Mersen 62003J and Littelfuse LFJ602003C maintain active product status and ROHS3 compliance. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Established supplier relationships and procurement channels
• Regional sourcing and logistics considerations
• Existing stock levels within your organization

Both parts satisfy identical electrical specifications (600V, 200A, 3-circuit) and mechanical requirements (DIN Rail mounting, Class J cartridge design, box lug termination).

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse LFJ602003C directly replace the Mersen 62003J?

A: Yes. Both parts share identical electrical ratings (600V, 200A), circuit configuration (3-circuit), fuse size (1.625" Dia x 5.75" L), mounting standard (DIN Rail), and termination style (box lug). Both maintain ROHS3 compliance.

Q: Are there any mechanical compatibility concerns?

A: No. Both parts use identical DIN Rail mounting and box lug termination, ensuring direct mechanical compatibility in existing installations.

Q: What compliance certifications apply to both parts?

A: Both the Mersen 62003J and Littelfuse LFJ602003C are ROHS3 compliant. Moisture sensitivity is not applicable to either part.

Q: Are there differences in packaging?

A: Both parts are supplied in box packaging, with no differences in handling or storage requirements.

Q: What determines substitution eligibility for Class J fuse blocks?

A: Substitution is determined by matching voltage rating, current capacity, circuit count, fuse size, mounting type, and termination style. Both parts meet all these criteria.