VES-661(T) A+B
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Catalog excerpts

VES-661(T) A+B HEAD OFFICE, NORWAY 70/100 volt combined transformer Primary connections White : Green 70 V White : Red 100 V Secondary nominal tappings C C C C Sound pressure levels at 1W/1m A+B system Specifications Material / Color Mounting Termination Weight IP-rating Max. / min. amb. temp Standard version Rated / max. power SPL 1W/1m SPL rated power Effective freq. range Dispersion (-6dB) 1kHz / 4kHz Options Steel / White RAL 9010 3 screws Ceramic terminals 2,0 kg N/A 110C / -20C 100 V transformer 6 W / 2x6 W 93 dB 99 dB 240 – 13000 Hz N/A Impedances, colors, labels Installation, Operation and Maintenance Procedures Two separate loudspeakers, two transformers and two terminals (A + B system) Install the steel box into the cut-out hole turning the screws connected to the three hooks, screw clockwise until the ring is fixed to the ceiling. Lead cable through box and connect to terminal. If 70V, replace red cable with the green cable in the terminal. Turn the grill gently clockwise within the ring until it stops. For optimum performance, always use the correct voltage / power and operate within the frequency limits as stated. Transformer compliant to British standard 5839. Do not open loudspeaker when energized. This loudspeaker is supplied with a 2 year warranty against defective workmanship. DNH reserves the right to alter specifications without notice http://companyweb/teknisk/Dataark/Voice alarm/VES661(T)x2.doc

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