Item Specifics:
Brand: Siemens
Model: CubicleBUS WLL3F340
Breaker Type: 3VA6 Series, 3-Pole
Current Rating: 4000 A (maximum)
Voltage Rating: Up to 690 V AC
Interrupting Capacity:
• 50 kA @ 240/415/440 V
• 50 kA @ 500 V
• 25 kA @ 690 V
Frame Size: 150A (x32 breaker frames)
Condition: New / Unused
Description:
For sale is a brand-new Siemens 3VA6 Switchgear – CubicleBUS with WL Low Voltage Circuit Breaker (WLL3F340). This industrial-grade electrical switchgear is designed for high-capacity power distribution, circuit protection, and reliability in large-scale applications.
Engineered for data centers, industrial facilities, utilities, and Bitcoin mining operations, this system provides 4000A capacity with robust circuit protection and advanced trip-unit controls.
Key Features:
✅ 4000A high-capacity rating
✅ 3VA6 Series circuit breaker (3-pole)
✅ Spring-driven mechanism with OPEN / CLOSE controls
✅ Status indicators: CONTACTS, READY, SPRING DISCHARGED
✅ Integrated ETU743 memory plug for trip-unit settings
✅ Adjustable ground-fault protection (800A, 1000A, 1200A)
✅ Safety labeling for voltage & mechanical hazards
Applications:
Data centers
Utility substations
Heavy industrial facilities
Crypto mining farms
Large-scale commercial operation





















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