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Eaton Bussmann

Eaton Bussmann SD4-S 1250A 690V AC NH Size 4 Block 1-Pole NH Fuse Block

Part Number: SD4-S

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SD4-S: 1250A; 690V AC; NH Size 4 Block; Up to 120kA SCCR.

Rated Current1250A
Rated Voltage690V AC
Breaking CapacityUp to 120kA SCCR
Package1-pole

Eaton Bussmann SD4-S is a 1-pole nh fuse block rated 1250A at 690V AC. Interrupting/withstand rating: Up to 120kA SCCR. Typical applications: Accepts NH fuse sizes 4. Source: Bussmann Full Line Catalog 1007 (2018), page 5-12.

Quick answer, specifications & FAQ
Direct answer

Eaton Bussmann NH Fuse Block SD4-S is rated 1250A, 690V AC, 1-pole. Breaking capacity Up to 120kA SCCR, certifications IEC 60269-1/2|VDE 0636-1/2. Listed applications: Accepts NH fuse sizes 4. Standards: IEC, IEC 60269-1, IEC 60269-2, VDE 0636. SD4-S: 1250A; 690V AC; NH Size 4 Block; Up to 120kA SCCR.

Last updated 23 days ago

Key specifications

  • Part number: SD4-S
  • Brand: Eaton Bussmann
  • Rated current: 1250A
  • Rated voltage: 690V AC
  • Breaking capacity: Up to 120kA SCCR
  • Package size: 1-pole
  • Terminal type: NH Knife-Blade Contacts
  • Certifications: IEC 60269-1/2|VDE 0636-1/2
  • Standards: IEC, IEC 60269-1, IEC 60269-2, VDE 0636
  • Typical lead time: 12-16 weeks
  • Source: Bussmann Full Line Catalog 1007 (2018), page 5-12.

Frequently asked questions

What are the current and voltage ratings of SD4-S?

SD4-S is rated 1250A at 690V AC.

What is the breaking capacity of SD4-S?

SD4-S has a breaking capacity of Up to 120kA SCCR. Confirm this covers the available fault current at the installation point.

What package size does SD4-S use?

SD4-S uses 1-pole package size.

Which standards and approvals apply to SD4-S?

SD4-S is listed under IEC, IEC 60269-1, IEC 60269-2, VDE 0636 / IEC 60269-1/2|VDE 0636-1/2.

What is SD4-S used for?

SD4-S is listed for Accepts NH fuse sizes 4 applications. Verify suitability for your circuit before ordering.

What are the ordering terms for SD4-S?

SD4-S: typical lead time 12-16 weeks. Submit a quote request for a firm quotation.

Data sources

Part number
SD4-S
Brand
Eaton Bussmann
Last updated
2026-10-10
Canonical URL
https://fusestock.com/products/eaton-bussmann-sd4-s/

Technical Specifications

Part Number
SD4-S
Manufacturer Part Number
SD4-S
Series
SD/TD Series (NH Fuse Block)
Fuse Type
NH Fuse Block
Current Rating
1250A
Voltage Rating
690V AC
AC / DC
AC
Breaking Capacity
Up to 120kA SCCR
Package / Dimensions
1-pole
Mounting
Screw Mount
Application
Accepts NH fuse sizes 4
Standard
IEC · IEC 60269-1 · IEC 60269-2 · VDE 0636
Terminal Type
NH Knife-Blade Contacts
Utilization Class
NH Size 4 Block
Approvals
VDE
Certifications
IEC 60269-1/2|VDE 0636-1/2
Reference Lead Time
12-16 weeks
Source
Bussmann Full Line Catalog 1007 (2018), page 5-12.

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