Product Description

Siemens 3WT8202-6AA04-5AB2 – Air Circuit Breaker (ACB)

The Siemens 3WT8202-6AA04-5AB2 is a SENTRON 3WT8 series Air Circuit Breaker (ACB) used for heavy-duty low-voltage power distribution systems like PCC, MCC, transformer and generator incomer panels.

It belongs to the 3WT8202 frame (2000A class) and is designed for high fault level industrial protection and reliable switching of large electrical loads.

🔹 Description

The 3WT8202-6AA04-5AB2 is a withdrawable (draw-out) type ACB used as a main incomer or feeder breaker in industrial switchboards.

It provides protection against:

• Overload
• Short circuit
• Earth fault (depending on ETU configuration)

It uses an electronic microprocessor-based trip unit (ETU37WT / LSING family) for accurate and adjustable protection settings.

🔹 Key Features

• Siemens SENTRON 3WT8 series
• Model: 3WT8202-6AA04-5AB2
• Frame size: 3WT8202 (2000A class)
• Type: Air Circuit Breaker (ACB)
• Poles: 3 Pole
• Breaking capacity: 66 kA @ 500V AC (typical 3WT8 range)
• Type: Withdrawable (draw-out design)
• Trip unit: Electronic ETU37WT (LSING / LSI variant)
• Protection functions:
  • Overload protection (Long time)
  • Short circuit protection
  • Earth fault protection (variant dependent)
• Mechanical lockout & safety shutter system
• Manual operating mechanism with stored energy system
• Auxiliary contacts + interlock support
• IEC 60947-2 compliant design
• High mechanical endurance for industrial switching