Eaton Bussmann

Eaton Bussmann 55GFMSJ300E 300A 5.5kV E-Rated General Purpose DIN E-Rated Medium Voltage Fuse

Name: Eaton Bussmann 55GFMSJ300E 300A 5.5kV E-Rated General Purpose DIN E-Rated Medium Voltage Fuse
Brand: Eaton Bussmann
SKU: 55GFMSJ300E

Part Number: 55GFMSJ300E

● LT: 12-16w

55GFMSJ300E: 300A; 5.5kV; E-Rated General Purpose; E-Rated; 65kA RMS Sym..

Rated Current300A

Rated Voltage5.5kV

Breaking Capacity65kA RMS Sym.

PackageDIN-Style

Tags

Eaton Bussmann 55GFMSJ300E is a din e-rated medium voltage fuse rated 300A at 5.5kV. Interrupting rating: 65kA RMS Sym.. Typical applications: Medium-voltage transformers, Switchgear, Feeder circuits. 50N striker for visual/remote indication.. Source: Bussmann Full Line Catalog 1007 (2018), page 7-19 to 7-21.

Quick answer, specifications & FAQ

Direct answer

Eaton Bussmann DIN Medium Voltage Fuse 55GFMSJ300E is rated 300A, 5.5kV, DIN-Style. Breaking capacity 65kA RMS Sym.. Listed applications: Feeder protection, Power Distribution Protection, Transformer protection. Standards: ANSI C37.46 / C37.40 by voltage. 55GFMSJ300E: 300A; 5.5kV; E-Rated General Purpose; E-Rated; 65kA RMS Sym..

Last updated 24 days ago

Key specifications

Part number: 55GFMSJ300E
Brand: Eaton Bussmann
Rated current: 300A
Rated voltage: 5.5kV
Breaking capacity: 65kA RMS Sym.
Package size: DIN-Style
Terminal type: Ferrule with Striker
Standards: ANSI C37.46 / C37.40 by voltage
Typical lead time: 12-16 weeks
50N striker for visual/remote indication.; Source: Bussmann Full Line Catalog 1007 (2018), page 7-19 to 7-21.

Frequently asked questions

What are the current and voltage ratings of 55GFMSJ300E?

55GFMSJ300E is rated 300A at 5.5kV.

What is the breaking capacity of 55GFMSJ300E?

55GFMSJ300E has a breaking capacity of 65kA RMS Sym.. Confirm this covers the available fault current at the installation point.

What package size does 55GFMSJ300E use?

55GFMSJ300E uses DIN-Style package size.

Which standards and approvals apply to 55GFMSJ300E?

55GFMSJ300E is listed under ANSI C37.46 / C37.40 by voltage.

What is 55GFMSJ300E used for?

55GFMSJ300E is listed for Feeder protection, Power Distribution Protection, Transformer protection applications. Verify suitability for your circuit before ordering.

What are the ordering terms for 55GFMSJ300E?

55GFMSJ300E: typical lead time 12-16 weeks. Submit a quote request for a firm quotation.

Data sources

Part number: 55GFMSJ300E
Brand: Eaton Bussmann
Last updated: 2026-10-10
Canonical URL: https://fusestock.com/products/eaton-bussmann-55gfmsj300e/

Technical Specifications

Part Number: 55GFMSJ300E
Manufacturer Part Number: 55GFMSJ300E
Series: 5.5kV DIN E-Rated Series
Fuse Type: DIN Medium Voltage Fuse
Current Rating: 300A
Voltage Rating: 5.5kV
AC / DC: AC
Breaking Capacity: 65kA RMS Sym.
Package / Dimensions: DIN-Style
Mounting: Fuse Clip
Application: Feeder protection · Power Distribution Protection · Transformer protection
Standard: ANSI C37.46 / C37.40 by voltage
Terminal Type: Ferrule with Striker
Utilization Class: E-Rated
Reference Lead Time: 12-16 weeks
50N striker for visual/remote indication.; Source: Bussmann Full Line Catalog 1007 (2018), page 7-19 to 7-21.