Siemens air circuit breakers, especially the SENTRON 3WA series, are advanced solutions for power distribution in industrial and infrastructure applications. These circuit breakers are essential for maintaining the reliability and safety of electrical systems, particularly as automation and strict regulatory standards become more prominent.

The SENTRON 3WA air circuit breakers are known for their fail-safe performance in complex environments, ensuring continuous power and protecting against overloads, short circuits, and other potential faults. They are engineered to be flexible and adaptable, allowing for integration into diverse system setups. With intuitive features and straightforward customization options, the SENTRON 3WA breakers simplify installation and operation, making it easier for engineers and facility managers to achieve their power management goals.

SENTRON 3WA

Siemens’ SENTRON 3WA air circuit breakers are designed to meet the growing demands of modern power distribution, providing safety and reliability in increasingly automated environments. As power distribution systems need to comply with stricter standards, the SENTRON 3WA offers a solution that is not only robust but also flexible, allowing for easy customization to suit different infrastructure needs.

This breaker line is engineered to ensure fail-safe operation, helping manufacturers and operators achieve optimal results while maintaining system integrity. With SENTRON 3WA, Siemens aims to simplify complex power distribution challenges, making it easier for users to meet their specific objectives.

3WA1110-3AB12-0AA0

The Siemens 3WA1110-3AB12-0AA0 is a high-capacity, fixed-mounted, non-automatic circuit breaker designed for robust industrial applications that require reliable, high-current protection. This model is part of Siemens’ 3WA1 Air Circuit Breakers series and is built according to IEC 60947-2 standards, making it suitable for medium-voltage applications without the need for automatic tripping functionality.

Key Features and Specifications:

• Number: 3WA1110-3AB12-0AA0
• Mounting Type: Fixed-mounted
• Frame Size: 1
• Poles: 3-pole configuration for standard phase protection
• Rated Current (In): 2000 A
• Voltage Range: Up to 690 V AC (50/60 Hz)

Breaking Capacity:

• Icc: 66 kA at 500 V
• Icc: 50 kA at 690 V
• Trip Unit: Does not include an electronic trip unit (ETU), focusing on manual operations

Functional Features:

Protection:

• Non-automatic, without electronic trip units, for applications where monitoring and control are managed externally or manually

Manual Operating Mechanism:

• Operated manually with mechanical closing, without a spring charging motor or complex motorized functions
• Includes a Ready-to-close signal switch to indicate operational readiness

Auxiliary Features:

• Equipped with 2NO and 2NC auxiliary switches for additional monitoring and control capabilities
• Rear horizontal connection for streamlined and secure wiring
• Lacks a closing coil (CC) and shunt trips, making it a straightforward, durable solution for installations without remote tripping requirements

Additional Product Information:

• Product Family: 3WA1 Air Circuit Breakers designed for non-automated air circuit applications up to 6300 A (AC)
• Product Lifecycle (PLM): Active, ensuring current support and availability
• Commodity Code: 85362090
• Catalog ID: LV10, Group Code: P360

Applications

The Siemens 3WA1110-3AB12-0AA0 non-automatic circuit breaker is suited for industrial environments that require manual circuit control for high-power systems. With a durable, fixed-mounted design and high breaking capacity, it is ideal for systems where high-current interruption is essential but automatic tripping is not required. Its simplicity and reliability make it a cost-effective option for heavy-duty applications.