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Eaton Bussmann

Eaton Bussmann 170M3666 250A 690V AC aR High-Speed Fuse

Part Number: 170M3666

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Eaton Bussmann 170M3666 250A 690V AC aR high-speed square-body fuse for semiconductor and power-electronics protection.

Rated Current250A
Rated Voltage690V AC
Breaking Capacity200kA
PackageSize 1*

Eaton Bussmann 170M3666 is a 250A, 690V AC, aR high-speed square-body fuse for semiconductor and power-electronics protection. The Size 1* construction uses US Style Bolted Tag termination with FKE Type K indicator. Interrupt rating is 200kA. Pre-arcing I²t is 4200 A²s and clearing I²t is 28500 A²s at 660V 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
170M3666
Manufacturer Part Number
170M3666
Series
170M
Current Rating
250A
Voltage Rating
690V AC
AC / DC
AC
Breaking Capacity
200kA
I²t
Pre-arcing 4200 A²s; clearing 28500 A²s at 660V AC
Pre-arcing I²t
4200 A²s
Total I²t
28500
Package / Dimensions
Size 1*
Mounting
Bolted Tag
Application
Power Electronics
Standard
IEC 60269-4
Terminal Type
US Style Bolted Tag
Fuse Speed
Very Fast Acting
Utilization Class
aR
Approvals
CE · UL Recognized
Certifications
UL Recognized · CE
Manufacturer
Eaton Bussmann
Rated current
250A
Rated voltage
690V AC
Utilization class
aR
Fuse size
Size 1*
Breaking capacity
200kA
Terminal / connection
US Style Bolted Tag
Variant
FKE Type K indicator
Clearing I²t
28500 A²s (660V AC)

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