LT302001C Equivalent & Substitute Parts

Part Overview

The LT302001C is a chassis-mount fuse block cartridge designed for 200 A circuits at 300V, utilizing Class T fuses. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing system maintenance and new design implementations. The obsolete status necessitates evaluation of functionally equivalent parts that maintain electrical and mechanical compatibility while offering current product availability.

Substiute Parts

LT302001C

Littelfuse Inc.In Stock: 1060LT302001C Datasheet

Current PartRFQ

LFT302001CS

Littelfuse Inc.In Stock: 1081LFT302001CS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT302001C is determined by strict equivalence across the following critical parameters:

• Current Rating: 200 A (exact match required)
• Voltage Rating: 300V (exact match required)
• Fuse Type: Cartridge (exact match required)
• Fuse Size: 1.063" Dia x 2.437" L / 27mm x 61.9mm (exact match required)
• Fuseholder Type: Block (exact match required)
• Number of Circuits: 1 (exact match required)
• Termination Style: Box Lug (exact match required)
• For Use With/Related Products: Class T Fuses (exact match required)

The LFT302001CS meets all electrical and mechanical equivalence criteria. The primary difference is the mounting configuration: LFT302001CS utilizes DIN Rail mounting versus the chassis mount of the original part. This represents a mechanical variation that may require installation method adjustment but does not affect electrical performance or fuse compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LFT302001CS is the direct electrical and mechanical equivalent for the obsolete LT302001C. Both components share identical current, voltage, fuse type, fuse size, circuit count, and termination specifications. Selection between these parts depends on installation requirements:

For applications requiring chassis mount configuration, the LT302001C remains the specified part, though availability is limited due to obsolete status.

For new installations or system redesigns, the LFT302001CS is the recommended selection. This part is currently active in production, ensuring supply chain availability. The LFT302001CS incorporates ROHS3 compliance, meeting modern regulatory requirements that the obsolete LT302001C does not satisfy. The DIN Rail mounting configuration of the LFT302001CS accommodates standard industrial panel installations and provides superior accessibility for maintenance operations.

Both parts are manufactured by Littelfuse Inc. and accept identical Class T cartridge fuses, ensuring functional interchangeability within the electrical circuit.

Frequently Asked Questions (FAQ)

Q: Can the LFT302001CS directly replace the LT302001C in existing installations?

A: Electrical compatibility is complete. The LFT302001CS accepts the same Class T cartridge fuses and operates at identical 200 A / 300V specifications. Physical installation differs due to mounting type: LT302001C uses chassis mount while LFT302001CS uses DIN Rail mount. Installation method adjustment is required.

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

A: Mounting type determines installation location and method. Chassis mount (LT302001C) fastens directly to equipment enclosure walls. DIN Rail mount (LFT302001CS) fastens to standard 35mm DIN rails within control panels. Both configurations provide equivalent electrical performance and fuse accessibility.

Q: Why is RoHS compliance different between these parts?

A: The LT302001C predates RoHS3 requirements and carries non-compliant status. The LFT302001CS, as an active production part, incorporates ROHS3 compliance. For applications subject to RoHS3 regulations, the LFT302001CS is the required selection.

Q: Are the fuse cartridges interchangeable between LT302001C and LFT302001CS?

A: Yes. Both parts utilize identical Class T cartridge fuses with 1.063" Dia x 2.437" L (27mm x 61.9mm) dimensions. Fuse selection and replacement procedures are identical.

Q: What inventory status should influence part selection?

A: LT302001C inventory is limited (992 pcs) with obsolete status indicating no future production. LFT302001CS is actively produced with current inventory (977 pcs). For long-term system support, LFT302001CS ensures sustained availability.