Mersen USA 30351 Fuse Block - Equivalent & Substitute Parts

Part Overview

The Mersen USA 30351 is a midget fuse block rated for 600V, 30A single-pole applications. This component is designed for circuit protection in industrial and commercial electrical systems. The part is currently active in production with ROHS3 compliance and maintains robust inventory availability (1139 pcs in stock). Equivalent substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific mounting requirements.

Substiute Parts

30351

Mersen USA Newburyport-MA L.L.C.In Stock: 116830351 Datasheet

Current PartRFQ

L60030M1C

LittelfuseIn Stock: 906L60030M1C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Mersen USA 30351 is determined by the following critical parameters:

• Voltage Rating: 600V (exact match required)
• Current Rating: 30A (exact match required)
• Number of Circuits: 1 (single-pole configuration)
• Fuse Type: Cartridge (midget format, 5AG standard, 0.394" Dia x 1.496" L / 10mm x 38mm)
• Fuseholder Type: Block
• RoHS Compliance: ROHS3 Compliant (regulatory requirement match)

The Littelfuse L60030M1C qualifies as a direct substitute based on matching all critical electrical parameters (600V, 30A, 1-circuit cartridge block) and regulatory compliance status. Functional equivalence is established through identical voltage, current, and fuse size specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Mersen USA 30351 and Littelfuse L60030M1C are active production components with ROHS3 compliance certification. Selection between these parts is based on:

• Electrical equivalence: Both parts satisfy 600V, 30A, single-circuit requirements
• Regulatory compliance: Both maintain ROHS3 Compliant status
• Supply availability: Mersen USA 30351 maintains higher inventory (1139 pcs vs. 872 pcs)
• Mounting configuration: Littelfuse L60030M1C specifies chassis mount with box lug termination; mounting compatibility with the application must be verified against mechanical design requirements

Component selection should prioritize supply chain availability and mechanical fit within the target application enclosure.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse L60030M1C directly replace the Mersen USA 30351?

A: Yes, from an electrical standpoint. Both parts are rated 600V, 30A, single-circuit cartridge fuse blocks with identical voltage and current specifications. Mechanical compatibility (chassis mount configuration and box lug termination) must be confirmed against your application's physical layout and terminal requirements.

Q: What determines if a fuse block is a valid substitute?

A: Substitution eligibility is determined by matching voltage rating (600V), current rating (30A), number of circuits (1), fuse type (cartridge, midget format), and regulatory compliance (ROHS3). Mechanical mounting style and termination type must also be compatible with the application.

Q: Are both parts compliant with current regulations?

A: Yes. Both the Mersen USA 30351 and Littelfuse L60030M1C are ROHS3 Compliant and active in production.

Q: What is the fuse size specification for these blocks?

A: Both parts accommodate 5AG midget cartridge fuses, dimensioned 0.394" diameter x 1.496" length (10mm x 38mm).

Q: Which part should I select if both are available?

A: Selection depends on application-specific requirements. The Mersen USA 30351 offers higher inventory availability. The Littelfuse L60030M1C provides explicit chassis mount and box lug termination specifications. Verify mechanical fit and terminal compatibility with your circuit design before final selection.