Electronic door bell 230V AC Type: EW-01 EXT10000028

School bell controller – bell center for schools and other institutions

The EW-01 electronic attendant is a ready-to-use kit for controlling school bells, designed for both modernizing existing installations and building new ones. The device is based on the SDM-10 controller and offers a wide range of configuration options, allowing you to adapt the acoustic signaling to the specific needs of the educational institution. This solution will work not only in schools, but also in offices, workplaces or other facilities requiring a precise and flexible bell system.

Functionality and application

The EW-01 kit contains everything necessary for the smooth operation of the system: an isolating switch, a bell controller, parallel relays and special control buttons. They allow you to enable short lesson mode and activate the alarm button with acoustic signaling – which increases safety in the event of a threat. The SDM-10 controller is the heart of the system and allows for precise management of acoustic signaling using standard 230V AC bells (or lower voltage bells using an appropriate transformer).

Key features and benefits

• Ready-to-use kit: Saves time and costs associated with selecting individual components. Everything you need is in one package.
• Flexibility: Ability to control various types of 230V AC bells and lower voltage bells (8V, 24V) using TRM-8 or TRM-24 transformers from the EXTA series.
• Short lesson mode: Allows for quick termination of classes in emergency situations or during special events.
• Alarm button: Provides immediate alarm signaling in the event of a threat, increasing user safety.
• Safety: Equipped with an isolating switch for safe installation and maintenance.
• Wide application: Ideal for schools, offices, workplaces and other facilities requiring an efficient bell system.
• Easy installation: Compact dimensions (90 mm high, 35 mm wide) make installation easy even in tight spaces.
• Programmability: Although it does not have weekly or daily programming, it offers a cyclic program and manual operation, providing basic control functions.
• Automatic daylight saving time/winter time change: Eliminates the need to manually correct the system's operating time.

Additional information: the device has a protection class of IP20, which means protection against touching foreign objects with a diameter of more than 12.5 mm. The rated switching current is 16A at 250V AC. Autonomy / backup time is 3 years.