TPL-CR 400A 170VDC Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The TPL-CR is a 400A 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 853 units in stock. Substitute parts become necessary when primary inventory is unavailable, when procurement lead times require alternative sourcing, or when system design flexibility permits equivalent components that meet identical electrical and mechanical specifications.

Substiute Parts

TPL-CR

Eaton - Bussmann Electrical DivisionIn Stock: 884TPL-CR Datasheet

Current PartRFQ

L17T400.V

Littelfuse Inc.In Stock: 957L17T400.V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Current Rating: 400A (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 L17T400.V from Littelfuse Inc. meets all mandatory substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the TPL-CR and L17T400.V are active production components with equivalent electrical and mechanical specifications. Selection between these parts should be based on:

• Inventory availability and procurement lead times
• Packaging requirements (TPL-CR supplied in Bulk; L17T400.V supplied in Box)
• Regulatory compliance scope (L17T400.V carries additional CSA certification and REACH Unaffected status)
• RoHS compliance generation (TPL-CR: RoHS Compliant; L17T400.V: ROHS3 Compliant)

Both components satisfy the same electrical performance envelope for 400A 170VDC telecom applications and are mechanically interchangeable within bolt mount fuse holders designed for 1.500" diameter cylindrical cartridges.

Frequently Asked Questions (FAQ)

Q: Can L17T400.V be used as a direct replacement for TPL-CR in existing installations?

A: Yes. Both components share identical current rating (400A), voltage rating (170VDC), fuse type (Cartridge), mounting configuration (Bolt Mount), physical dimensions (1.500" Dia x 1.252" L), and breaking capacity (100kA). They are mechanically and electrically interchangeable.

Q: What are the differences between these two fuse cartridges?

A: The primary differences are manufacturer identity, packaging format, and regulatory certifications. L17T400.V includes CSA certification and ROHS3 compliance, while TPL-CR carries UR and standard RoHS compliance. L17T400.V specifies Fast Blow response time; TPL-CR response time is not specified in available data.

Q: Does packaging format affect substitution eligibility?

A: Packaging format (Bulk vs. Box) does not affect electrical or mechanical compatibility. Selection should be based on procurement quantity requirements and inventory management practices.

Q: Are both components suitable for telecom applications?

A: Yes. Both the TPL-CR and L17T400.V are rated for telecom applications and meet the same electrical performance requirements.

Q: What certifications apply to each component?

A: TPL-CR carries CE and UR approvals. L17T400.V carries CE, CSA, and UR approvals. Both meet RoHS environmental compliance standards.