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Eaton Bussmann

Eaton Bussmann 170M3955 125A 1000V AC aR High-Speed Fuse

Part Number: 170M3955

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Eaton Bussmann 170M3955 125A 1000V AC aR high-speed square-body fuse for semiconductor and power-electronics protection.

Rated Current125A
Rated Voltage1000V AC
Breaking Capacity125kA
PackageSize 1*

Eaton Bussmann 170M3955 is a 125A, 1000V AC, aR high-speed square-body fuse for semiconductor and power-electronics protection. The Size 1* construction uses Flush End Contact termination with BKN Type K indicator. Interrupt rating is 125kA. Pre-arcing I²t is 1450 A²s and clearing I²t is 8600 A²s at 1000V AC. Suitable for converters, rectifiers, drives and related power-electronics protection; verify final coordination against Eaton’s official time-current data.

Technical Specifications

Part Number
170M3955
Manufacturer Part Number
170M3955
Series
170M
Current Rating
125A
Voltage Rating
1000V AC
AC / DC
AC
Breaking Capacity
125kA
I²t
Pre-arcing 1450 A²s; clearing 8600 A²s at 1000V AC
Pre-arcing I²t
1450 A²s
Total I²t
8600
Package / Dimensions
Size 1*
Mounting
Flush
Application
Power Electronics
Standard
IEC 60269-4
Terminal Type
Flush End Contact
Fuse Speed
Very Fast Acting
Utilization Class
aR
Approvals
CE · IEC Rated
Certifications
CE · IEC Rated
Manufacturer
Eaton Bussmann
Rated current
125A
Rated voltage
1000V AC
Utilization class
aR
Fuse size
Size 1*
Breaking capacity
125kA
Terminal / connection
Flush End Contact
Variant
BKN Type K indicator
Clearing I²t
8600 A²s (1000V AC)

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