LH252003C Equivalent & Substitute Parts

Part Overview

The LH252003C is a 200 A, 250V fuse block designed for 3-circuit cartridge applications with chassis mount configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component procurement. The LH252003C accommodates Class H(K) and Class R fuses in a cartridge format with box lug termination.

Substiute Parts

LH252003C

Littelfuse Inc.In Stock: 982LH252003C Datasheet

Current PartRFQ

LFH252003C

Littelfuse Inc.In Stock: 753LFH252003C Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LH252003C is determined by the following critical parameters that must remain constant:

• Current Rating: 200 A
• Voltage Rating: 250V
• Number of Circuits: 3
• Fuse Type: Cartridge
• Fuseholder Type: Block
• Termination Style: Box Lug
• Compatible Fuse Classes: Class H(K), Class R

The LFH252003C qualifies as a direct substitute based on matching all electrical parameters (200 A, 250V, 3-circuit cartridge block with box lug termination). The primary difference is the mounting configuration: the LH252003C uses chassis mount, while the LFH252003C uses DIN rail mount. This distinction affects installation method but does not alter electrical compatibility or fuse accommodation capability.

Parameter Comparison

Engineering Selection Recommendations

The LFH252003C is the direct electrical equivalent to the LH252003C. Both components maintain identical current, voltage, circuit count, and fuse accommodation specifications. The LFH252003C is currently in active production status, whereas the LH252003C is obsolete.

Selection between these parts depends on installation requirements:

• Choose LH252003C only if chassis mount configuration is mandatory and existing inventory is available.
• Choose LFH252003C for new designs, system upgrades, or when DIN rail mounting is compatible with the installation environment. The LFH252003C also provides ROHS3 compliance, whereas the LH252003C does not.

Frequently Asked Questions (FAQ)

Q: Can the LFH252003C directly replace the LH252003C in an existing system?

A: Electrical compatibility is complete. The LFH252003C accepts the same fuse types (Class H(K) and Class R cartridges) and handles identical current and voltage specifications. Physical installation differs due to mounting type: the LH252003C requires chassis mount hardware, while the LFH252003C requires DIN rail infrastructure. Installation feasibility depends on available mounting space and existing enclosure design.

Q: What is the significance of the mounting type difference?

A: Mounting type affects only the physical installation method, not electrical performance. Chassis mount (LH252003C) uses direct panel or chassis attachment with fasteners. DIN rail mount (LFH252003C) uses standardized rail-based installation. Both achieve the same electrical function within their respective installation environments.

Q: Why is the LH252003C listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The LFH252003C represents the current production equivalent, offering the same electrical specifications with updated compliance certifications.

Q: Are there compliance differences between these parts?

A: Yes. The LH252003C is RoHS non-compliant. The LFH252003C is ROHS3 compliant and REACH unaffected. For applications subject to RoHS or REACH regulations, the LFH252003C is the required selection.

Q: Do both parts accommodate the same fuse specifications?

A: Yes. Both the LH252003C and LFH252003C are designed for Class H(K) and Class R cartridge fuses. Fuse selection criteria remain identical regardless of which block is used.