LH252001C Equivalent & Substitute Parts

Part Overview

The LH252001C is a fuse block cartridge designed for 250V, 200A applications with single-circuit configuration and chassis mount orientation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The part accommodates Class H(K) and Class R cartridge fuses with box lug termination, serving as a critical protective device in electrical distribution systems.

Substiute Parts

LH252001C

Littelfuse Inc.In Stock: 798LH252001C Datasheet

Current PartRFQ

LFH252001C

Littelfuse Inc.In Stock: 1040LFH252001C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LH252001C is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Requirements:

• Current rating: 200 A (exact match required)
• Voltage rating: 250V (exact match required)
• Fuse type: Cartridge (exact match required)
• Compatible fuse classes: Class H(K), Class R (exact match required)

Mechanical Compatibility Requirements:

• Fuseholder type: Block (exact match required)
• Number of circuits: 1 (exact match required)
• Termination style: Box Lug (exact match required)

Functional Equivalence: The LFH252001C meets all electrical and mechanical compatibility criteria. While the mounting configuration differs (DIN Rail versus Chassis Mount), the core protective function, current handling capacity, voltage rating, and fuse accommodation specifications remain functionally equivalent. The difference in mounting type represents a design variation rather than a functional limitation, as both configurations serve identical electrical protection purposes within their respective installation environments.

Parameter Comparison

Engineering Selection Recommendations

The LFH252001C serves as the direct functional equivalent for the obsolete LH252001C. Selection of the substitute part is justified by the following factors:

Product Status: The LH252001C is classified as obsolete, creating supply chain constraints. The LFH252001C maintains active product status with confirmed inventory availability (1003 units in stock versus 787 units for the main part).

Regulatory Compliance: The LFH252001C achieves ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The main part is RoHS non-compliant, presenting potential compliance issues for new installations or systems subject to regulatory oversight.

Electrical and Mechanical Equivalence: Both parts maintain identical current rating (200 A), voltage rating (250V), fuse type (Cartridge), fuseholder configuration (Block, single circuit), and termination style (Box Lug). Compatibility with Class H(K) and Class R fuses is preserved.

Installation Consideration: The primary distinction is mounting configuration. The LFH252001C utilizes DIN Rail mounting, while the LH252001C employs Chassis Mount. This difference requires evaluation within the specific installation environment and mechanical layout of the target application.

Frequently Asked Questions (FAQ)

Q: Can the LFH252001C directly replace the LH252001C in existing installations?

A: Electrical and protective function compatibility is complete. The LFH252001C accommodates identical fuse types, current ratings, and voltage specifications. Physical installation requires assessment of the mounting infrastructure; DIN Rail mounting differs from Chassis Mount configuration. Mechanical integration feasibility depends on available mounting space and system design.

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

A: Yes. Both the LH252001C and LFH252001C accept Class H(K) and Class R cartridge fuses. Fuse size specifications and electrical ratings remain consistent across both blocks.

Q: What is the significance of the RoHS compliance difference?

A: The LFH252001C meets ROHS3 compliance standards, while the LH252001C is non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the LFH252001C is the appropriate selection.

Q: Does the DIN Rail mounting of the LFH252001C affect electrical performance?

A: No. Mounting configuration does not alter electrical performance, current handling capacity, or protective function. Both mounting types provide equivalent electrical protection within their respective installation environments.

Q: Is the LFH252001C available for immediate procurement?

A: Yes. The LFH252001C is classified as active product status with 1003 units in stock, ensuring supply availability compared to the obsolete LH252001C.