Hazardous Area & Process Heating · ATEX Phones – Hazardous Area Telephones ATEX IECEx Zone 1 & Zone 2

ATEX Phones Zone 2 Hazardous Area – FHF FernTel 3 Explosion Proof Telephone

FHF FernTel 3 explosion proof telephones are ATEX phones for desk/wall mounting suitable for areas classified as having explosive atmospheres.

CategoryATEX Phones, Telephones & Tablets

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Product Overview

ATEX Phones Zone 2 Hazardous Area

FHF FernTel 3 explosion proof telephones are ATEX phones for desk/wall mounting suitable for areas classified as having explosive atmospheres.

Certified for areas susceptible to explosive dust and gases the FHF FernTel 3 offers safe hazardous area communications in Zone 2 hazardous area locations.

FHF FernTel 3 explosion proof telephone housing is made of impact resistant and shockproof Polycarbonate and approved for Zone 2 and 22 according to ATEX. The resistance of housing and use of screws of stainless steel are especially advantageous for use in areas with high air humidity and explosive atmospheres.

Due to its striking signal colour the FHF FernTel 3 cannot be missed; useful for whenever a telephone is urgently needed.

Features

Protection degree IP65
Stabiliser bracket (optional)
Ambient temperature -20ºC to +55ºC
ATEX telephone call tone ≥ 95 dB(A), 1 m
Explosion protection class:
II 3 G Ex nA L IIC T5
II 3 D Ex tD A22 IP65 80°C

Ordering Information

For ATEX and IECEx certified explosion proof telephones the full part number is made up by appending the colour code for the coloured housing to the article number given here (-). Yellow 1 | Red 2 | Grey 7* | Black 0 | For Inmetro certified units, please add (45) to the part number.

FHF

FHF is part of the Hazardous Area Communication (HAC) group belonging to Eaton who own MEDC. MEDC has been added to the EATON hazardous area communications business unit to which FHF have a complimentary range of hazardous area signalling and ATEX phones.

Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.

Thermon | EXHEAT | Abtech | Marechal Electric | 3M Electrical

Technical Specifications

Category	ATEX Phones, Telephones & Tablets

Hazardous Area ATEX Certification – Zone 2
Hazardous Area Protection Class:	II 3 G Ex nA L IIC T5. II 3 D Ex tD A22 IP65 80ºC.
Net access, Acoustics:	TBR 21, TBR 38.
Electrical Safety:	EN60950.
ATEX Telephone call tone	≥95 dB(A), 1 m.
Ambient conditions
Display:	-10ºC to +55ºC
Operating temperature:	-20ºC to +55ºC.
Transport and storage temperature	-25ºC to +70ºC.
Protection degree:	IP65
Connection data
Call frequency programmable:	16…68 Hz
Pulse-break ratio programmable:	1,5 : 1 60/40 ms 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:	Electret microphone
Connections
Wire:	Up to 0.25 mm², wire to 2.5 mm²
Incoming telephone line:	TCP/La, TCP/Lb.
Secondary bell:	w1, w
Cable glands	1 cable gland handset. 1 cable gland M 20 x 1.5. 1 blind plug M20 x 1.5. 2 blind plugs M12 x 1.5.

FHF FernTel 3 Part Number	Version
MEDC F112 400 2 (45)(-)	Desk/Wall Telephone without Display spiral cord
MEDC F112 410 2 (45)(-)	Desk/Wall Telephone with Display spiral cord
MEDC F112 420 2 (45)(-)	Desk/Wall Telephone without Display armoured cord
MEDC F112 430 2 (45)(-)	Desk/Wall Telephone with Display armoured cord
MEDC F112 390 00	Stabiliser bracket

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