Elevator emergency telephone NRT 1 NT Ex
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NRT 1 NT Ex
The NRT 1 NT Ex is a further development of the NRT 1 Ex that we have been successfully deploying for many years, whereby the tried and tested technology has been further improved and enhanced by the addition of several options, in particular, compliance with the latest requirements for elevator alarm calls. EN81-28 and EN81-70 can be achieved.
The NRT 1 NT Ex offers the following special performance characteristics: Higher volume through the use of an Ex speaker, integrated alarm button and integrated microphone, two further alarm buttons and two further microphones can be connected, an Ex rated display panel can be connected, voltage input for misuse detection, routine calls daily, every 3 days, weekly or monthly.
Ignition protection type
EEx qde[ib] IIC T6
CE 0032 II2 GD IP66 T85°C
ZELM 02 ATEX 0111
Suitable for deployment in
Zone 1 (= Category 2) and
Zone 2 (= Category 3) as well as
Zone 21 and 22 for areas that are at risk of explosion from dust
Connection to analogue a/b telephone connection, main line or extension
External power supply 18 - 36 VDC
Galvanic exchange separation
Integrated alarm button and microphone
Connection option for two further alarm buttons and microphones
Input for alarm filtering in accordance with EN81-28
Outputs for Ex display panels in accordance with EN81-70
Routine calls
Data protocol for connection to control centre
Recorded announcements for connection to telephone
Recorded announcement in the elevator car
Powerfail-safe storage of programmed parameters
Two-way voice communication, hands-free
Acoustic alarm signalling
Part number: 60 1255
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Accessories
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Microphone
Microphone with insertion casing; black cellular rubber holder self-adhesive; access line 5,0 m
Part number: 60 1479
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Tableau Ex indicator "wait"
Tableau Ex indicator "wait"; mounting diameter 22,5 mm; access line 5,0 m
Part number: 60 1249
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Tableau Ex indicator "speak"
Tableau Ex indicator "speak"; mounting diameter 22,5 mm; access line 5,0 m
Part number: 60 1253
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Emergency button Ex
Emergency button Ex; mounting diameter 22,5 mm; access line 1,5 m
Part number: 60 1242
Emergency button Ex; mounting diameter 22,5 mm; access line 3,0 m
Part number: 60 1243
Emergency button Ex; mounting diameter 22,5 mm; access line 5,0 m
Part number: 60 1244
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Emergency button Ex incl. microphone
Emergency button Ex incl. microphone in housing; access line 7,0 m
Part number: 60 1256
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Mounting bracket
for Emergency button Ex 22,5 mm mounting diameter
Part number: 60 1247
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