Equivalent & Substitute Parts for Eaton 170M3812

Part Overview

The Eaton 170M3812 is a 100A 700VAC rectangular square fuse designed for electrical and industrial applications requiring holder-mounted installation. This component features indicating capability and meets CSA and UR approval standards with a breaking capacity of 200kA at rated voltage.

The 170M3812 is classified as obsolete. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new installations where this specification is required.

Substiute Parts

170M3812

Eaton - Bussmann Electrical DivisionIn Stock: 5415170M3812 Datasheet

Current PartRFQ

170M3812D

Eaton - Bussmann Electrical DivisionIn Stock: 5400170M3812D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 170M3812 is determined by strict equivalence across the following critical parameters:

• Current Rating: 100A (exact match required)
• Voltage Rating: 700VAC (exact match required)
• Fuse Type: Square (exact match required)
• Mounting Configuration: Requires Holder (exact match required)
• Physical Dimensions: 2.717" L x 1.772" W x 2.283" H / 69.00mm x 45.00mm x 58.00mm (exact match required)
• Breaking Capacity: 200kA at rated voltage (exact match required)
• Melting I²t: 360 (exact match required)
• Approval Standards: CSA, UR certification (exact match required)

The substitute part 170M3812D maintains identical electrical and mechanical specifications, ensuring direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The 170M3812D is the direct equivalent substitute for the obsolete 170M3812. Both components are manufactured by Eaton - Bussmann Electrical Division and maintain identical electrical specifications, mechanical dimensions, and approval certifications (CSA, UR).

The primary distinction is product status: the 170M3812 is obsolete, while the 170M3812D is active and currently in production. The 170M3812D is available in bulk packaging, supporting both replacement and new installation requirements.

For applications requiring the 100A 700VAC square fuse specification with holder mounting, the 170M3812D provides direct functional and physical compatibility with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can the 170M3812D be used as a direct replacement for the 170M3812?

A: Yes. The 170M3812D is electrically and mechanically identical to the 170M3812. Both components share the same current rating (100A), voltage rating (700VAC), fuse type (square), dimensions (2.717" L x 1.772" W x 2.283" H), breaking capacity (200kA), and approval certifications (CSA, UR). No circuit modifications or holder changes are required.

Q: What is the difference between the 170M3812 and 170M3812D?

A: The primary difference is product status. The 170M3812 is obsolete, while the 170M3812D is active and in current production. The 170M3812D is supplied in bulk packaging. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with holder mounting?

A: No. Both the 170M3812 and 170M3812D require holder mounting and are designed for the same rectangular blade package configuration. Existing holders compatible with the 170M3812 will accommodate the 170M3812D without modification.

Q: What certifications apply to the 170M3812D?

A: The 170M3812D carries CSA and UR approval certifications, matching the 170M3812. These certifications confirm compliance with applicable electrical safety standards for 700VAC fuse applications.

Q: Is the 170M3812D RoHS compliant?

A: Yes. The 170M3812D is RoHS compliant. The 170M3812 RoHS status is not specified in the available data.