Bosch Volume Control wall plate available in 12 watt and 36 watt versions. Suitable for 3-wire and 4-wire override systems with built-in 24 VDC override relay. Robust design, available in Portrait and Landscape. The design and colour are unobtrusive in any interior. Ease of installation, operation and reliability is optimized.
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Public address systems are often used for both announcements and background music distribution. Volume controls can be used to adjust the sound level locally.
In the event of an (emergency) announcement, the built-in relay ensures that the message is broadcast at a pre-set level, independent of the local volume setting. The 36 W volume control features 8 attenuation steps of -3 dB and an off position. The intuitive graphics around the knob clearly shows the attenuator steps and off position.
The volume controls can be mounted in standard 2” x 4” electrical installation flush mounting boxes with 2 fixing screws (3 x 15 mm) standard supplied. The minimum allowable depth of the applied flush mounting box must be 36 mm, allowing convenient wiring. For the electrical connections, an easy accessible 8- way screw terminal block is provided.
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