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Siemens SENTRON 3WL1216-4BB34-4AN2

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3WL1216-4BB34-4AN2

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Siemens' 3WL1216-4BB34-4AN2 is a circuit breaker designed for substantial electrical applications. Rated for a maximum short circuit breaking capacity of 100 kiloamperes, it operates effectively in a variety of conditions.

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Technical specifications for 3WL1216-4BB34-4AN2

ManufacturerSiemens
Product TypeCircuit Breaker
Product LineSENTRON
Part Number3WL1216-4BB34-4AN2
Short Circuit Breaking Capacity85 to 100 kiloamperes
Mounting TypeFixed mount
Ambient Operating Temperature-20 to 70°C (in a non-condensing environment)
Power Loss28.3 Watts at rated current and up to 85 Watts (maximum)
Rated Phase3-phase
Circuit Breaker SizeSize 2
Rated Current1,600 Amperes
Electrical Endurance15,000 switching cycles (typical)
Main Circuit Operating Voltage690 Volts AC
Auxiliary Switch Design2 Normally-Open (NO) contacts and 2 Normally-Closed (NC) contacts
Storage Temperature-40 to 70°C (in a non-condensing environment)
Electrical Connection TypeBusbar connection
Protection RatingIP20
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The Siemens 3WL1216-4BB34-4AN2 circuit breaker is engineered for handling significant electrical loads. It supports a rated current of up to 1,600 Amperes, making it fitting for high-demand scenarios. The breaker operates under 3-phase power and features a short circuit breaking capacity ranging from 85 to 100 kiloamperes, ensuring reliable protection against overcurrent events.

This model is optimized for fixed mounting, offering a stable installation within electrical distribution panels. The device is compatible with busbar electrical connections, enhancing its adaptability in various setups. This circuit breaker also includes two Normally-Open (NO) contacts and two Normally-Closed (NC) contacts within its auxiliary switch design, providing flexibility in control options.

The power loss at rated current is measured at 28.3 Watts, with a maximum of 85 Watts under peak conditions, indicating efficient energy handling. This model showcases electrical endurance, capable of enduring up to 15,000 switching cycles under typical conditions, which is essential for longevity in demanding applications.

Operating effectively in ambient temperatures between -20°C and 70°C, the 3WL1216-4BB34-4AN2 maintains performance in a variety of environments. Its storage temperature capacity ranges from -40°C to 70°C, ensuring functionality even under extreme conditions. The IP20 protection rating signifies that this breaker is designed for indoor use, providing a modest shield against ingress. Overall, the 3WL1216-4BB34-4AN2 serves as a robust solution for substantial electrical management needs.