Signal transmitter for emitting acoustic warning signals, has intermediate barrier within housing for separating sensitive and/or hazardous elements from non-critical elements

摘要

The transmitter has different contact terminal blocks (17) for low-voltage range and contact terminal blocks (18) for mains voltage range which is dangerous to touch, and with which the transmitter can be supplied and triggered with different voltages and/or can be triggered in a potential-free manner. A barrier is provided for a geometric and electrical separation of the units that are crucial for safety, or dangerous to touch.