TPL-BH 200A 170VDC Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The TPL-BH is a 200A 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 876 units in stock. Substitute parts become necessary when the primary manufacturer's stock is unavailable, when procurement lead times require alternative sourcing, or when system design flexibility permits equivalent component selection based on matching electrical and mechanical specifications.

Substiute Parts

TPL-BH

Eaton - Bussmann Electrical DivisionIn Stock: 973TPL-BH Datasheet

Current PartRFQ

L17T200.T

LittelfuseIn Stock: 808L17T200.T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPL-BH is determined by strict equivalence across the following critical parameters:

• Current Rating: Must be exactly 200A
• Voltage Rating (DC): Must be exactly 170 VDC
• Fuse Type: Must be Cartridge
• Mounting Type: Must be Bolt Mount
• Package / Case: Must be Cylindrical with Blade Terminal (Bolt)
• Physical Dimensions: Must be compatible with 1.000" Dia x 1.160" L envelope
• Breaking Capacity: Must be 100kA at rated voltage
• Application Suitability: Must support Telecom applications

The Littelfuse L17T200.T meets all these criteria and qualifies as a direct substitute. Both parts share identical electrical ratings, mechanical mounting interfaces, and dimensional compatibility within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both the TPL-BH and L17T200.T are active production components with current availability. Selection between these parts should be based on:

Certification Requirements: The L17T200.T carries additional CSA certification beyond the CE and UR certifications shared with the TPL-BH. If CSA certification is required by system specifications or regional standards, the L17T200.T is the appropriate selection.

RoHS Compliance: Both parts meet RoHS requirements. The L17T200.T specifies ROHS3 compliance, representing the current RoHS standard iteration.

Dimensional Tolerance: The L17T200.T length specification (1.157" L) differs by 0.003" from the TPL-BH (1.160" L). This variance is within typical mechanical tolerances for cylindrical cartridge fuses and does not affect bolt mount interface compatibility.

Packaging Format: The TPL-BH is supplied in Bulk packaging, while the L17T200.T is supplied in Box packaging. Procurement quantity requirements may influence packaging preference.

Response Characteristic: The L17T200.T is specified as Fast Blow. If response time characteristics are critical to system protection requirements, this specification should be confirmed against system design parameters.

Frequently Asked Questions (FAQ)

Q: Can the L17T200.T be used as a direct replacement for the TPL-BH in existing installations?

A: Yes. Both parts share identical current rating (200A), voltage rating (170 VDC), fuse type (Cartridge), mounting type (Bolt Mount), and package case (Cylindrical, Blade Terminal). The dimensional difference of 0.003" in length is within acceptable mechanical tolerances for bolt mount interfaces and does not affect functional compatibility.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence in current rating, DC voltage rating, fuse type, mounting type, package case configuration, physical dimensions within tolerance, breaking capacity, and application suitability. All these parameters must match between the original part and the substitute.

Q: Does the L17T200.T have better certifications than the TPL-BH?

A: The L17T200.T carries CE, CSA, and UR certifications, while the TPL-BH carries CE and UR certifications. The additional CSA certification on the L17T200.T may be advantageous if CSA compliance is required by system specifications or regional regulatory requirements.

Q: Are there any performance differences between these two fuses?

A: Both fuses are rated for 100kA breaking capacity at 170 VDC and 200A current rating. The L17T200.T is specified as Fast Blow response. The TPL-BH response time is not specified in available data. If response time characteristics are critical to system protection design, this parameter should be confirmed against system requirements.

Q: What is the significance of the packaging difference (Bulk vs. Box)?

A: Packaging format affects procurement logistics and storage. Bulk packaging typically accommodates larger quantity orders, while Box packaging is standard for smaller quantity purchases. Selection should align with procurement quantity requirements and inventory management practices.

Q: Are both parts currently available for procurement?

A: Yes. The TPL-BH has 876 units in stock, and the L17T200.T has 793 units in stock. Both parts maintain active production status and are available through normal procurement channels.