Eaton Bussmann 170M6749 Square Fuse Equivalent & Substitute Parts

Part Overview

The Eaton Bussmann 170M6749 is a 1.1kA, 1.3kVAC square bolt-mount fuse designed for electrical and industrial applications. This fuse features an indicating function and is rated for a breaking capacity of 100kA at rated voltage. The part is currently listed as obsolete, making identification of active equivalent models essential for procurement and system continuity in applications requiring this specific electrical protection component.

Substiute Parts

170M6749

Eaton - Bussmann Electrical DivisionIn Stock: 1241170M6749 Datasheet

Current PartRFQ

170M6699

Eaton - Bussmann Electrical DivisionIn Stock: 685170M6699 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M6749 can be substituted with the 170M6699 based on strict electrical and mechanical parameter equivalence. Both components share identical specifications across all critical substitution criteria:

• Current Rating: 1.1kA (identical)
• Voltage Rating: 1.3kVAC (identical)
• Fuse Type: Square (identical)
• Mounting Type: Bolt Mount (identical)
• Breaking Capacity: 100kA (identical)
• Melting I²t: 575000 (identical)
• Physical Dimensions: 2.913" L x 2.992" W x 3.622" H (identical)
• Package / Case: Rectangular, Blade (identical)
• Approval Agencies: CSA, UR (identical)
• Features: Indicating (identical)

The 170M6699 is the direct equivalent part, currently in active production status with bulk packaging availability.

Parameter Comparison

Engineering Selection Recommendations

The 170M6699 is the direct replacement for the obsolete 170M6749. Both components are manufactured by Eaton - Bussmann Electrical Division and carry identical electrical ratings, mechanical specifications, and regulatory certifications (CSA, UR). The 170M6699 is currently in active production status, ensuring long-term availability and supply chain continuity.

For applications currently using the 170M6749, direct substitution with the 170M6699 requires no circuit modifications, mounting changes, or performance adjustments. The identical breaking capacity, melting I²t characteristics, and physical dimensions ensure drop-in compatibility in existing installations.

The 170M6699 is available in bulk packaging, supporting both prototype and production-volume procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the 170M6699 be used as a direct replacement for the 170M6749?

A: Yes. Both components share identical electrical ratings (1.1kA, 1.3kVAC), mechanical specifications (bolt mount, square fuse type), breaking capacity (100kA), and physical dimensions (74.00mm x 76.00mm x 92.00mm). No circuit or mounting modifications are required.

Q: What is the primary difference between these two parts?

A: The 170M6749 is obsolete, while the 170M6699 is in active production. Both are functionally and mechanically equivalent.

Q: Are the regulatory certifications identical?

A: Yes. Both the 170M6749 and 170M6699 carry CSA and UR approvals, maintaining compliance with the same regulatory standards.

Q: What packaging options are available for the substitute part?

A: The 170M6699 is supplied in bulk packaging, suitable for production and high-volume applications.

Q: Are the melting I²t characteristics the same?

A: Yes. Both components have a melting I²t of 575000, ensuring identical thermal response characteristics in overcurrent conditions.

Q: Can these parts be used interchangeably in existing installations?

A: Yes. The identical bolt-mount configuration, rectangular blade package, and physical dimensions allow direct installation without mechanical or electrical modifications.