3WL9111

3WL9111  Siemens air circuit breaker accessory is a high-quality circuit breaker accessory, which adopts advanced design and manufacturing technology, and has excellent performance and reliability. This accessory is suitable for Siemens 3WL series air circuit breakers, which can protect electrical equipment from short circuit, overload and ground faults in AC circuit.

1. Voltage level: AC 220V/ DC 110V

2. Microprocessor: It integrates modern microprocessor technology to precisely control the operation of the circuit breaker and ensure its efficient operation

3. Communication interface: supports RS485 interface for program communication control, and also has circuit breaker status analog output

4. Protection function: It has multiple protection functions such as short circuit, overload, undervoltage and overvoltage, which can effectively protect circuit equipment

5. Size and weight: The size is 160 x 160 x 73 mm, and the weight is about 1.1 kg

6. Installation method: support hook installation and side-to-side installation

7. Application field: Because 3WL9111-0BA81-0AA0 has reliable protection function and communication interface, it is widely used in the control system of high-voltage switchgear, such as construction, petrochemical, road traffic, ship and other fields.

3WL9111  has two current sensors, which can monitor the current change in the circuit in real time and trigger the protection action of the circuit breaker. At the same time, the accessory is also equipped with LED indicators for displaying the status and fault information of the circuit breaker. In addition, the accessory's compact design and easy installation make it easy to integrate into existing electrical systems.

3WL9111  Siemens air circuit breaker accessory is an expansion module for the 3WL circuit breaker series. It provides additional connection options that can expand the functionality of the circuit breaker and enhance its performance. This accessory features direct connection to contralateral devices, as well as the ability to connect to external communication modules, such as a PROFIBUS interface. Additionally, the accessory has smart features that monitor the power system and provide status reports.

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