Mersen USA 30323 Midget Fuse Block 600V 30A 3P - Equivalent & Substitute Parts

Part Overview

The Mersen USA 30323 is a midget fuse block rated for 600V at 30A with 3-pole configuration, designed for panel-mount applications using polypropylene construction. This component is currently active in production with ROHS3 compliance certification. Substitute parts may be required due to inventory availability, regional sourcing preferences, or specific mounting configuration requirements while maintaining equivalent electrical and mechanical performance.

Substiute Parts

30323

Mersen USA Newburyport-MA L.L.C.In Stock: 217330323 Datasheet

Current PartRFQ

L60030M3PQ

Littelfuse Inc.In Stock: 1255L60030M3PQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse Inc. L60030M3PQ qualifies as a direct substitute for the Mersen USA 30323 based on the following critical parameters:

• Voltage rating: 600V (identical)
• Current rating: 30A (identical)
• Number of circuits: 3 (identical)
• Fuse type: Cartridge, 5AG midget size 0.394" Dia x 1.496" L (10mm x 38mm) (identical)
• RoHS compliance: ROHS3 Compliant (equivalent)
• Product status: Active (equivalent availability)

The primary difference is mounting configuration: the Mersen 30323 is panel-mount (polypropylene construction), while the Littelfuse L60030M3PQ is chassis-mount. Both accommodate the same midget cartridge fuse format and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Mersen USA 30323 and Littelfuse L60030M3PQ are active products with ROHS3 compliance. Selection between these parts depends on mounting configuration requirements:

• Use Mersen USA 30323 for panel-mount applications with polypropylene construction
• Use Littelfuse L60030M3PQ for chassis-mount applications requiring screw terminal, pressure plate, or quick connect termination options

Both parts accept identical 5AG midget cartridge fuses (10mm x 38mm) and maintain equivalent electrical performance at 600V, 30A, 3-circuit specifications. Inventory availability: Mersen 30323 has 2116 units in stock; Littelfuse L60030M3PQ has 1148 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse L60030M3PQ directly replace the Mersen USA 30323 in all applications?

A: Electrical compatibility is confirmed (600V, 30A, 3-circuit, midget cartridge format). Physical compatibility depends on mounting configuration. The Mersen part is panel-mount; the Littelfuse part is chassis-mount. Verify your application's mounting requirements before substitution.

Q: Are the fuse cartridges interchangeable between these two fuse blocks?

A: Yes. Both blocks accept 5AG midget cartridge fuses with dimensions 0.394" Dia x 1.496" L (10mm x 38mm). Fuse selection is independent of the block manufacturer.

Q: What is the difference between panel-mount and chassis-mount configurations?

A: Panel-mount (Mersen 30323) is designed for installation on control panel surfaces. Chassis-mount (Littelfuse L60030M3PQ) is designed for installation on equipment chassis or enclosure walls. Mounting method and physical footprint differ accordingly.

Q: Are both parts RoHS compliant?

A: Yes. Both the Mersen USA 30323 and Littelfuse L60030M3PQ are ROHS3 compliant.

Q: What termination options are available for the Littelfuse L60030M3PQ?

A: The Littelfuse L60030M3PQ offers screw terminal, pressure plate, and quick connect termination styles. The Mersen 30323 termination style is not specified in available documentation.