Mersen 30353 Fuse Block - Equivalent & Substitute Parts

Part Overview

The Mersen 30353 is a midget fuse block rated for 600V, 3-pole configuration with 30A capacity. This component is designed for electrical distribution and circuit protection applications requiring compact form factor and reliable cartridge fuse accommodation. The part maintains Active product status with ROHS3 compliance and represents a standard solution for industrial and commercial electrical installations. Substitute parts are identified to provide alternative sourcing options when the primary manufacturer part becomes unavailable or when supply chain optimization is required.

Substiute Parts

30353

Mersen USA Newburyport-MA L.L.C.In Stock: 74230353 Datasheet

Current PartRFQ

L60030M3C

LittelfuseIn Stock: 725L60030M3C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse L60030M3C qualifies as a direct substitute for the Mersen 30353 based on the following critical electrical and mechanical parameters:

• Voltage Rating: Both parts are rated for 600V operation
• Current Capacity: Both parts accommodate 30A circuits
• Circuit Configuration: Both provide 3-circuit capability
• Fuse Compatibility: Both accept 5AG, 13/32" x 1-1/2" (Midget) cartridge fuses
• Mounting Configuration: Both are designed for chassis mount installation
• Regulatory Compliance: Both maintain ROHS3 compliance status
• Fuseholder Type: Both are cartridge-style fuse blocks

These parameters establish functional and physical interchangeability for the specified application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the Mersen 30353 and Littelfuse L60030M3C maintain Active product status with current manufacturing support. Selection between these parts should be based on:

• Supply Availability: Both parts maintain adequate inventory levels (699 and 712 units respectively)
• Regulatory Compliance: Both parts satisfy ROHS3 compliance requirements
• Electrical Specifications: Identical voltage (600V) and current (30A) ratings ensure equivalent performance in circuit protection applications
• Physical Compatibility: Matching fuse cartridge specifications (5AG, 13/32" x 1-1/2") and chassis mount configuration ensure direct installation compatibility

The Littelfuse L60030M3C provides a validated alternative when Mersen 30353 availability is constrained, with no compromise to electrical performance or regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse L60030M3C be used as a direct replacement for the Mersen 30353?

A: Yes. Both parts share identical electrical ratings (600V, 30A, 3-circuit), accept the same cartridge fuse type (5AG, 13/32" x 1-1/2"), and feature chassis mount configuration. Both maintain ROHS3 compliance and Active product status.

Q: Are there any physical differences between these fuse blocks?

A: The Littelfuse L60030M3C specifies Box Lug termination style. The Mersen 30353 termination style is not detailed in available specifications. Verify termination compatibility with your circuit board or panel layout before installation.

Q: What fuse cartridges are compatible with both blocks?

A: Both blocks accommodate 5AG cartridge fuses with dimensions 13/32" x 1-1/2" (10mm x 38mm). This is the standard midget fuse size for 30A applications at 600V.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the Mersen 30353 and Littelfuse L60030M3C are ROHS3 compliant and maintain Active product status with current manufacturing support.

Q: Which part should I select for new designs?

A: Selection should be based on component availability, lead time requirements, and existing supplier relationships. Both parts are electrically and mechanically equivalent for the specified 600V, 30A, 3-circuit application.