Product Description

Siemens 3WT8165-6KA26-5AB2 – Air Circuit Breaker (ACB)

The Siemens 3WT8165-6KA26-5AB2 is a SENTRON 3WT8 series Air Circuit Breaker (ACB) used in industrial low-voltage power distribution systems such as PCC, MCC, transformer and generator panels.

It belongs to the 3WT8165 frame (1600A class family) and is designed for high fault level protection, reliable switching, and safe isolation of heavy electrical loads.

🔹 Description

The 3WT8165-6KA26-5AB2 is a withdrawable type ACB used as a main incomer or feeder breaker in industrial switchboards.

It provides protection against:

• Overload conditions
• Short-circuit faults
• Earth faults (depending on trip unit configuration)

It is equipped with an electronic microprocessor-based trip unit (ETU series – LSING/LSI depending on configuration) for accurate protection and system coordination.

👉 Simple meaning:
Ye 1600A class ka heavy industrial breaker hai jo fault aane par poore system ko safe tareeke se disconnect karta hai.

🔹 Key Features

• Siemens SENTRON 3WT8 series ACB
• Model: 3WT8165-6KA26-5AB2
• Frame size: 3WT8165 (1600A class)
• Type: Air Circuit Breaker (ACB)
• Poles: 4 Pole (variant dependent)
• Breaking capacity: Up to 66 kA @ 500V AC (typical 3WT8165 family range)
• Type: Withdrawable (draw-out design)
• Trip unit: Electronic ETU (LSING / LSI variant dependent)
• Protection functions:
  • Long time (overload)
  • Short circuit protection
  • Earth fault protection (variant dependent)
• Motor/manual operating mechanism (variant dependent)
• Auxiliary contacts + interlock support
• IEC 60947-2 compliant design
• High mechanical endurance for industrial switching