TPL-CZH 800A 170VDC Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The TPL-CZH is an 800A 170VDC fuse cartridge manufactured by Eaton - Bussmann Electrical Division, designed for telecom applications requiring bolt mount installation. This cylindrical cartridge fuse is currently in active production status with 921 units in stock. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across manufacturers, ensuring seamless integration into existing designs without performance degradation.

Substiute Parts

TPL-CZH

Eaton - Bussmann Electrical DivisionIn Stock: 961TPL-CZH Datasheet

Current PartRFQ

L17T800.V

Littelfuse Inc.In Stock: 1122L17T800.V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPL-CZH is determined by strict equivalence across the following critical parameters:

• Current Rating: 800A (exact match required)
• Voltage Rating - DC: 170 VDC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Mounting Type: Bolt Mount (exact match required)
• Package / Case: Cylindrical, Blade Terminal (Bolt) (exact match required)
• Size / Dimension: 1.500" Dia x 1.252" L (38.10mm x 31.80mm) (exact match required)
• Breaking Capacity @ Rated Voltage: 100kA (exact match required)

The substitute part L17T800.V from Littelfuse Inc. meets all mandatory electrical and mechanical parameters, confirming direct interchangeability for the TPL-CZH in telecom applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TPL-CZH and L17T800.V are active production components with identical electrical and mechanical specifications. Selection between these parts should be based on:

• Approval Agency Requirements: The L17T800.V includes CSA certification in addition to CE and UR, providing broader regulatory coverage for North American applications.
• RoHS Compliance: Both parts meet RoHS requirements; the L17T800.V specifies ROHS3 Compliant status.
• Inventory Availability: The L17T800.V has 1016 units in stock compared to 921 units for the TPL-CZH.
• Packaging Format: The TPL-CZH is supplied in bulk packaging, while the L17T800.V is supplied in box packaging.

Frequently Asked Questions (FAQ)

Q: Can L17T800.V be used as a direct replacement for TPL-CZH?

A: Yes. Both parts share identical current rating (800A), voltage rating (170 VDC), fuse type (Cartridge), mounting type (Bolt Mount), package case (Cylindrical, Blade Terminal), physical dimensions (1.500" Dia x 1.252" L), and breaking capacity (100kA). Direct substitution is electrically and mechanically compatible.

Q: Are there differences in response time between these parts?

A: The L17T800.V is specified as Fast Blow. The TPL-CZH response time is not specified in the provided data. Both parts are suitable for telecom applications.

Q: What certifications apply to each part?

A: The TPL-CZH holds CE and UR approvals. The L17T800.V holds CE, CSA, and UR approvals. The L17T800.V provides additional CSA certification for enhanced North American regulatory compliance.

Q: Do packaging differences affect compatibility?

A: No. The TPL-CZH is supplied in bulk packaging and the L17T800.V in box packaging. This affects logistics and storage only; electrical and mechanical performance remain identical.

Q: Are both parts currently available?

A: Yes. Both parts maintain active production status with inventory in stock: TPL-CZH (921 units) and L17T800.V (1016 units).