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Ferntel 3 - Ex Analogue Telephone

Intrinsicaly Safe Analogue desk/wall telephone for use in Atex areas with explosive atmospheres - Zone 2, 22
  • Protection degree IP 65
  • 3 Stabiliser bracket (optional)
  • 3 Ambient temperature -20° C to +55°C
  • 3 Call tone ≥ 95 dB(A), 1 m
  • 3 Explosion protection class

Atex Certified - Zone 2, 22
II 3 G Ex nA L IIC T5
II 3 D Ex tD A22 IP65 80°C

It’s housing is made of impact resistant and shockproof Polycarbonate and approved for Zone 2 and 22 according ATEX.
Within ranges of the chemical and petrochemical industry combustible atmospheres result again and again from process engineering operational sequence.


Its striking signal colour ensures the FernTel 3 / Zone 2 cannot be missed whenever a telephone is urgently needed in Zones 2 , 22.


The resistance of housing and use of screws of stainles steel are especially advantageous for use in areas with high air humidity and explosive atmospheres. This desk telephone is easily converted into a wall telephone.

ferntel 3 atex telephone
ferntel 3


ferntel 3
The Ferntel 3 is available in
Red, Yellow, Grey and Black.

Ferntel 3 Zone 2 Display Option Item No.
Our Price
Spiral Cord With Display
112 400 2...
£P.O.A
Spiral Cord Without Display
112 410 2...
£P.O.A
Armoured Cord With Display
112 420 2...
£P.O.A
Armoured Cord Without Display
112 430 2...
£P.O.A
Stabiliser Bracket -
112 390 00
£P.O.A
FernTel 3 Specifications
Call frequency
programmable
16...68Hz
Pulse-break ratio
programmable
1,5 : 1 - 60/40ms
2 : 1 - 66,7/33.3 ms
MFV
According to CCITT Q23
Flash time
Approx. 80 ms, 1 ms...999 ms programmable
Line Voltage
24 to 66 VDC
Housing
Height x Width x Depth
Approx. 293 x 191 x 128 mm
Weight
Approx. 2.3 kg
Operating Position
Desktop or vertical wall mounting.
Handset
Transmitter capsule
Electrt microphone
Connections
Incoming Telephone Line
TCP/La, TCP/Lb
Secondary bell
W1, W
Ambient Conditions
Display
-10° C to +55° C
Operating Temp
-20° C to +55° C
Protection Degree
IP65
Conformity
Net access, Acoustics TBR 21, TBR 38
Electrical Safety EN60950
Atex. protection class II 3 G Ex nA L IIC T5
II 3 D Ex tD A22 IP65 80°C
Call Tone ≥ 95 dB(A), 1 m