TPL-CN 300A 170VDC Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The TPL-CN is a 300A 170VDC fuse cartridge manufactured by Eaton - Bussmann Electrical Division, designed for telecom applications requiring bolt mount installation. This cylindrical cartridge fuse is an active product with CE and UR approval certifications. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting configurations are required due to inventory constraints, supply chain considerations, or application-specific approval requirements.

Substiute Parts

TPL-CN

Eaton - Bussmann Electrical DivisionIn Stock: 1136TPL-CN Datasheet

Current PartRFQ

L17T300.V

Littelfuse Inc.In Stock: 884L17T300.V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPL-CN with the L17T300.V is valid based on the following matched electrical and mechanical parameters:

• Current Rating: Both parts rated at 300A
• Voltage Rating (DC): Both parts rated at 170 VDC
• Fuse Type: Both are cartridge fuses
• Mounting Type: Both use bolt mount configuration
• Physical Dimensions: Both measure 1.500" Dia x 1.252" L (38.10mm x 31.80mm)
• Breaking Capacity: Both rated at 100kA @ rated voltage
• Package / Case: Both feature cylindrical design with blade terminal (bolt)
• Application: Both suitable for telecom applications
• Compliance: Both RoHS compliant

The L17T300.V represents a functionally equivalent alternative from Littelfuse Inc. within the POWR-GARD® L17T series, maintaining identical electrical performance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the TPL-CN and L17T300.V are active products with current manufacturing status. Selection between these parts should be based on:

• Approval Requirements: The TPL-CN carries CE and UR certifications. The L17T300.V carries CE, CSA, and UR certifications, providing broader regulatory coverage for North American applications requiring CSA approval.
• RoHS Compliance: Both parts meet RoHS requirements. The L17T300.V specifies ROHS3 compliance, indicating adherence to the most current RoHS directive revision.
• Response Characteristics: The L17T300.V is specified as Fast Blow, whereas the TPL-CN response time is not specified in available documentation.
• Packaging: TPL-CN is supplied in bulk packaging; L17T300.V is supplied in box packaging, which may affect inventory management and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can the L17T300.V directly replace the TPL-CN in existing installations?

A: Yes. Both parts share identical electrical ratings (300A, 170VDC), mechanical dimensions (1.500" Dia x 1.252" L), mounting configuration (bolt mount), and breaking capacity (100kA). Physical interchangeability is confirmed.

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

A: The L17T300.V is specified as Fast Blow. The TPL-CN response time is not provided in the available technical data. If response time is a critical parameter for your application, this difference should be evaluated against application requirements.

Q: Which certifications apply to each part?

A: The TPL-CN holds CE and UR certifications. The L17T300.V holds CE, CSA, and UR certifications. For applications requiring CSA approval, the L17T300.V provides additional regulatory coverage.

Q: Do packaging differences affect compatibility?

A: Packaging format (bulk vs. box) does not affect electrical or mechanical compatibility. Packaging differences relate to inventory management, storage, and handling procedures only.

Q: Are both parts RoHS compliant?

A: Yes. Both the TPL-CN (RoHS Compliant) and L17T300.V (ROHS3 Compliant) meet RoHS requirements. The L17T300.V specifies compliance with the current ROHS3 directive revision.