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Eaton Bussmann

Bussmann ESS3-125 1500V DC 125A Battery Storage Fuse, with microswitch indicator

Part Number: ESS3-125

● LT: 4-6w

ESS3 battery storage fuse 125A 1500V DC, 250kA DC.

Rated Current125A
Rated Voltage1500V DC
Breaking Capacity250kA DC
PackageESS3

ESS3 battery storage fuse 125A 1500V DC with Type K indicator. UL and TUV certified, breaking capacity 250kA.

Quick answer, specifications & FAQ
Direct answer

Eaton Bussmann Battery Storage Fuse ESS3-125 is rated 125A, 1500V DC, Fast Acting (F), ESS3. Breaking capacity 250kA DC, I²t 10,900 A²s, operating temperature -40°C to +125°C, certifications UL Recognized|TUV. Listed applications: Battery systems, DC power supplies, Energy Storage, ESS. Standards: TUV, UL 248. ESS3 battery storage fuse 125A 1500V DC, 250kA DC.

Last updated 22 days ago

Key specifications

  • Part number: ESS3-125
  • Brand: Eaton Bussmann
  • Rated current: 125A
  • Rated voltage: 1500V DC
  • Breaking capacity: 250kA DC
  • Fuse speed: Fast Acting (F)
  • Package size: ESS3
  • Dimensions: ESS3 size
  • Terminal type: Bolted tag
  • Operating temperature: -40°C to +125°C
  • Certifications: UL Recognized|TUV
  • Standards: TUV, UL 248

Frequently asked questions

What are the current and voltage ratings of ESS3-125?

ESS3-125 is rated 125A at 1500V DC.

What is the breaking capacity of ESS3-125?

ESS3-125 has a breaking capacity of 250kA DC. Confirm this covers the available fault current at the installation point.

What package size does ESS3-125 use?

ESS3-125 uses ESS3 package size.

Which standards and approvals apply to ESS3-125?

ESS3-125 is listed under TUV, UL 248 / UL Recognized|TUV.

What is ESS3-125 used for?

ESS3-125 is listed for Battery systems, DC power supplies, Energy Storage, ESS applications. Verify suitability for your circuit before ordering.

What are the ordering terms for ESS3-125?

ESS3-125: typical lead time 4–6 weeks, minimum order 10 pcs. Submit a quote request for a firm quotation.

Data sources

Part number
ESS3-125
Brand
Eaton Bussmann
Last updated
2026-10-10
Canonical URL
https://fusestock.com/products/bussmann-ess3-125-1500v-dc-125a-battery-storage-fuse-with-microswitch-indicator/

Technical Specifications

Part Number
ESS3-125
Manufacturer Part Number
ESS3-125
Series
ESS3 Series
Fuse Type
Battery Storage Fuse
Current Rating
125A
Voltage Rating
1500V DC
AC / DC
DC
Breaking Capacity
250kA DC
I²t
10,900 A²s
Pre-arcing I²t
2200
Total I²t
10900
Operating Temperature
-40°C to +125°C
Package / Dimensions
ESS3
Mounting
Bolt-Down
Application
Battery systems · DC power supplies · Energy Storage · ESS
Standard
TUV · UL 248
Terminal Type
Bolted tag
Fuse Speed
Fast Acting (F)
Utilization Class
aR
Approvals
TUV · UL Recognized
Certifications
UL Recognized|TUV
Reference Lead Time
4–6 weeks
Minimum Order
10 pcs
Sample Status
LT: 4-6w
Watts Loss @ In
55W