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.

3WA1225-5AB02-0AA0

The 3WA1225-5AB02-0AA0 is a fixed-mounted air circuit breaker designed for robust and reliable power distribution applications in industrial and commercial environments. Below are its detailed features and specifications:

Key Features and Specifications:

• number: 3WA1225-5AB02-0AA0
• Standard Compliance: IEC 60947-2
• Frame Size: 2
• Poles: 3-pole configuration
• Rated Current (In): 2500A
• Rated Voltage: Up to 690V AC, 50/60Hz

Breaking Capacity (Icu):

• 100kA at 500V
• 85kA at 690V
• Trip Unit: ETU300 LSI (Long-time, Short-time, Instantaneous protection) optimized for standard applications, without display.

Protection and Functional Features:

Protection Modes:

• Long-time (LT)
• Short-time (ST)
• Instantaneous (INST)
• Neutral Protection: Requires an external N-sensor for N-protection.
• Trip Alarm Switch: Integrated trip alarm switch (1xCO).

Mechanical and Connection Features:

• Connection Type: Rear horizontal connection.
• Operating Mechanism: Manual operation with mechanical closing.
• Auxiliary Switches: 2NO+2NC configuration.
• Spring Charging Motor: Not included.
• Ready-to-Close Signal Switch: Not included.
• Closing Coil (CC): Not included.
• Shunt Trips: Both 1st and 2nd shunt trips are not included.
• Remote Reset Coil (RR): Not included.

Additional Information:

• Mounting Type: Fixed-mounted design for secure and stable installation.
• Product Lifecycle Status: Active (PLM PM300).
• Product Family: 3WA1 Air Circuit Breakers, suitable for non-automatic applications up to 6300A (AC).
• Catalog Reference: LV10.
• Commodity Code: 85362090.

This circuit breaker is built for high-performance power systems, offering enhanced breaking capacity and reliable protection. Its fixed-mounted design ensures stability, while the ETU300 LSI trip unit provides precise protection tailored for industrial needs.