✅ ABB 2CLA221900N1801 – Buzzer - 1M – Anthracite The ABB buzzer - 1m (Part No.: 2CLA221900N1801) is a 1M signaling module designed to emit an audible alert in electrical systems. Finished in a sleek anthracite color, it is ideal for use in hotels, hospitals, and other public buildings requiring status indication. Technical Specifications: • Part Number: 2CLA221900N1801 • Description: Buzzer - 1M • Module Size: 1M • Color: Anthracite • Application: Audible signaling for alerts, status change, or emergency notifications in modular panels