ATEX telephone dST series for zone 1 and 21

Explosionproof telephones may be inevitable in hazardous zones. The dST series offers the ideal solution for use in heavy-duty conditions. The large keys of type dST1 allow operation with gloves.

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General technical specifications

Housing

glass-fibre reinforced polyester

Protection

IP66

Terminals

2,5mm²

Line voltage

24V DC - 66V DC

Line current

15mA DC - 100mA DC

Ringing voltage

24-90V AC (21-54Hz ringing frequency) 30-90V AC (16,6-54Hz ringing frequency)

Call signal

90 dB(A)/1m 10 different melodies

Telephone system

PD - DTMF

Noise suppression

> 3 dB

Handsfree

until 68 dB / 1 m

Gland entry

2 cable glands M20 + 2 plugs M20

Weight

5,5 kg

Ambiant temperature

-25°C - +40/60°C

Guideline

ATEX

Manufacturer

Cooper - Eaton

Suited for

Zone 1	Zone 2
Zone 21	Zone 22

Classification

II 2 G Ex e mb [ib] IIC T6/T5 Gb
II 2 D Ex tb [ib] IIIC T80°C/T100°C Db

Zone

0	1	2
20	21	22

Ordering data (click on the order reference for more details)

Order refer.	Description
dST1-Z	black telephone with keypad and display

On request

extra horn for ringing signal
extra visual-audible sounder for telephone
additional earpiece set
headset kit