Mersen 30311 Midget Fuseblock 600V 30A 1P - Equivalent & Substitute Parts

Part Overview

The Mersen USA 30311 is a midget fuseblock rated for 600V at 30A single-pole operation. This component serves as a protective switching and fusing device in electrical distribution systems. The part maintains active product status with full ROHS3 compliance and is currently in stock with 1,846 units available. Substitute parts are identified when they meet the core electrical and mechanical specifications required for direct replacement in applications utilizing midget fuse cartridges.

Substiute Parts

30311

Mersen USA Newburyport-MA L.L.C.In Stock: 185830311 Datasheet

Current PartRFQ

L60030M1SQ

Littelfuse Inc.In Stock: 1187L60030M1SQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Mersen 30311 is determined by the following core parameters:

• Voltage rating of 600V or higher
• Current rating of 30A
• Single-circuit (1-pole) configuration
• Compatibility with midget fuse cartridges (5AG, 13/32" x 1-1/2")
• Active product status
• ROHS3 compliance certification

The identified substitute, Littelfuse L60030M1SQ, meets all substitution criteria through matching electrical specifications (600V, 30A, 1-circuit) and fuse cartridge compatibility. Both parts are designed for midget fuse applications and maintain equivalent RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the Mersen 30311 and Littelfuse L60030M1SQ maintain active product status with full ROHS3 compliance, ensuring regulatory alignment for current applications. Selection between these parts should be based on:

• Mounting configuration requirements (the Littelfuse part specifies chassis mount orientation)
• Termination style compatibility with existing circuit designs
• Inventory availability and lead time considerations
• Mechanical fit within the enclosure or panel assembly

The electrical specifications are equivalent, and both parts are certified for the same voltage and current operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse L60030M1SQ directly replace the Mersen 30311?

A: Yes, provided that the mounting configuration (chassis mount) and termination style (screw terminal/quick connect) are compatible with your application. Both parts share identical electrical ratings of 600V and 30A for single-circuit operation.

Q: What fuse cartridges are compatible with these fuseblocks?

A: Both the Mersen 30311 and Littelfuse L60030M1SQ accept midget fuse cartridges rated 5AG, 13/32" x 1-1/2" (10mm x 38mm).

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and carry the same ECCN classification (EAR99), ensuring equivalent regulatory status for procurement and deployment.

Q: What is the difference between the two parts?

A: The primary differences are mounting type (Littelfuse specifies chassis mount) and termination options (Littelfuse offers screw terminal and quick connect). Electrical performance and fuse compatibility are identical.

Q: Can I use these parts in applications rated above 600V?

A: No. Both parts are rated for maximum 600V operation. Using them in higher voltage applications exceeds their design specifications and creates safety hazards.