EN 54 is a standard of the European Union for fire detection and fire alarm systems, and the relevant parts to the voice alarm and audio industry are part 16, which is concerned with voice alarm control and indicating equipment, and part 24, which refers to loudspeakers.

MC4EN is designed for use in voice evacuation and voice alarm applications for clear and intelligible speech announcements. Quick fit clamps allow easy and fast installation into false ceilings. High sound pressure level SPL and optimized middle frequency sound reproduction ensures reliable operation in case of an emergency situation. MC 4EN equipped with ceramic wire terminal and thermal fuse. EN54-24 certified.

Power: 6 W
Transformer power taps: 6 W - 3 W - 1,5 W
Sensitivity: 89 dB (1 W/1 m)
Frequency response: 110 Hz - 15 kHz
Dimensions: ø 181 mm × 65 mm
Colour: White RAL9016