Equivalent & Substitute Parts for Eaton 170M5809

Part Overview

The Eaton 170M5809 is a 450A 700VAC rectangular square fuse designed for electrical and industrial applications. This fuse features an indicating function and requires a dedicated holder for installation. The part is classified as obsolete, making identification of active equivalent alternatives essential for procurement and system maintenance. The 170M5809D serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved availability and current compliance certifications.

Substiute Parts

170M5809

Eaton - Bussmann Electrical DivisionIn Stock: 924170M5809 Datasheet

Current PartRFQ

170M5809D

Eaton - Bussmann Electrical DivisionIn Stock: 752170M5809D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 170M5809D qualifies as a direct substitute for the 170M5809 based on the following criteria:

Electrical Parameters Match:

• Current Rating: 450A (identical)
• Voltage Rating: 700VAC (identical)
• Breaking Capacity: 200kA (identical)
• Melting I²t: 16000 (identical)

Mechanical Parameters Match:

• Fuse Type: Square (identical)
• Package / Case: Rectangular, Blade (identical)
• Physical Dimensions: 2.717" L x 2.165" W x 2.795" H (identical)
• Mounting Type: Requires Holder (identical)

Functional Parameters Match:

• Features: Indicating (identical)
• Applications: Electrical, Industrial (identical)

The substitution is valid because all critical electrical, mechanical, and functional parameters are identical between the two parts. The primary difference is product status: the 170M5809 is obsolete, while the 170M5809D is active.

Parameter Comparison

Engineering Selection Recommendations

The 170M5809D is the appropriate selection for new designs and replacement applications. As an active product with identical electrical and mechanical specifications, it provides direct compatibility with existing systems designed for the 170M5809. The 170M5809D carries additional CE certification in addition to UR approval, and is RoHS compliant, meeting current regulatory requirements. Bulk packaging availability supports production and inventory management needs. The obsolete status of the 170M5809 makes the 170M5809D the only viable long-term procurement option.

Frequently Asked Questions (FAQ)

Q: Can the 170M5809D be used as a direct replacement for the 170M5809?

A: Yes. The 170M5809D is electrically and mechanically identical to the 170M5809. All critical parameters—current rating, voltage rating, breaking capacity, melting I²t, fuse type, package configuration, and physical dimensions—are identical. The parts are interchangeable in any application.

Q: What is the difference between the 170M5809 and 170M5809D?

A: The primary differences are product status and compliance certifications. The 170M5809 is obsolete, while the 170M5809D is active. The 170M5809D includes CE certification and is RoHS compliant. Packaging differs: the 170M5809D is supplied in bulk format.

Q: Does the 170M5809D require the same holder as the 170M5809?

A: Yes. Both parts are square fuses with rectangular blade package configuration and identical physical dimensions (2.717" L x 2.165" W x 2.795" H). They require the same holder type and mount identically.

Q: Are there any voltage or current derating considerations when substituting?

A: No. The 170M5809D maintains the same 450A current rating and 700VAC voltage rating as the 170M5809, with identical breaking capacity of 200kA. No derating or adjustment is required.

Q: What certifications does the 170M5809D carry?

A: The 170M5809D carries CE and UR approvals and is RoHS compliant. The original 170M5809 carried UR approval only.