TPL-CO 350A 170VDC Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The TPL-CO is a 350A 170VDC cylindrical fuse cartridge manufactured by Eaton - Bussmann Electrical Division, designed for telecom applications with bolt mount configuration. This component is currently active in production with 845 units in stock. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification, enabling direct replacement in existing installations without circuit redesign.

Substiute Parts

TPL-CO

Eaton - Bussmann Electrical DivisionIn Stock: 864TPL-CO Datasheet

Current PartRFQ

L17T350.V

Littelfuse Inc.In Stock: 943L17T350.V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Current Rating: Must be exactly 350A
• Voltage Rating (DC): Must be exactly 170 VDC
• Fuse Type: Must be Cartridge
• Mounting Type: Must be Bolt Mount
• Physical Dimensions: Must match 1.500" Dia x 1.252" L (38.10mm x 31.80mm)
• Breaking Capacity: Must be 100kA at rated voltage
• Approval Certifications: Must include CE and UR minimum

The L17T350.V from Littelfuse Inc. meets all substitution criteria, maintaining identical electrical performance and mechanical compatibility while offering alternative sourcing and packaging options.

Parameter Comparison

Engineering Selection Recommendations

Both the TPL-CO and L17T350.V are active production components with equivalent electrical and mechanical specifications. Selection between these parts should be based on:

Sourcing Availability: The L17T350.V offers higher current inventory (930 units) compared to TPL-CO (845 units), providing supply chain flexibility.

Certification Coverage: The L17T350.V includes CSA certification in addition to CE and UR, providing broader geographic compliance coverage for North American applications.

RoHS Compliance Level: The L17T350.V meets ROHS3 Compliant status, representing the current RoHS standard, while TPL-CO meets RoHS Compliant status. Both satisfy RoHS requirements.

Packaging Format: TPL-CO is supplied in Bulk packaging, while L17T350.V is supplied in Box packaging. Packaging selection depends on inventory management and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can L17T350.V directly replace TPL-CO in existing circuits?

A: Yes. Both components share identical current rating (350A), voltage rating (170 VDC), fuse type (Cartridge), mounting configuration (Bolt Mount), 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 fuses?

A: The L17T350.V is specified as Fast Blow response time. The TPL-CO response time specification is not provided in the available data. Verify response time requirements for your specific application before substitution if response time is a critical parameter.

Q: What approval certifications apply to each part?

A: TPL-CO holds CE and UR certifications. L17T350.V holds CE, CSA, and UR certifications. Both meet the minimum CE and UR requirements. The L17T350.V provides additional CSA certification for North American applications.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Bulk vs. Box) does not affect electrical or mechanical performance. Selection is based on inventory management, handling, and storage requirements only.

Q: Are both parts RoHS compliant?

A: Yes. TPL-CO is RoHS Compliant. L17T350.V is ROHS3 Compliant. Both satisfy RoHS environmental requirements. ROHS3 represents the current standard revision.