WAGO 750-630 Service Manual download pdf (Page 27)

Use in Hazardous Environments • 27

WAGO-I/O-SYSTEM 750

I/O Modules

3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX

554086 X)

1. For use as Gc- or Dc-apparatus (in zone 2 or 22) the field bus independent I/O

modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that

fulfils the requirements of the applicable standards (see the marking) EN

60079-0, EN 60079-11, EN 60079-15, EN 61241-0 and EN 61241-1. For use as

group I, electrical apparatus M2, the apparatus shall be erected in an enclosure

that ensures a sufficient protection according to EN 60079-0 and EN 60079-1

and the degree of protection IP64. The compliance of these requirements and

the correct installation into an enclosure or a control cabinet of the devices

shall be certified by an ExNB.

2. If the interface circuits are operated without the field bus coupler station type

750-3../…-… (DEMKO 08 ATEX 142851 X), measures must be taken outside

of the device so that the rating voltage is not being exceeded of more than 40%

because of transient disturbances.

3. DIP-switches, binary-switches and potentiometers, connected to the module

may only be actuated when explosive atmosphere can be excluded.

4. The connecting and disconnecting of the non-intrinsically safe circuits is only

permitted during installation, for maintenance or for repair purposes. The

temporal coincidence of explosion hazardous atmosphere and installation,

maintenance resp. repair purposes shall be excluded.

5. For the types 750-606, 750-625/000-001, 750-487/003-000, 750-484 the

following shall be considered: The interface circuits shall be limited to

overvoltage category I/II/III (non mains/mains circuits) as defined in IEC

60664-1.

6. For the type 750-601 the following shall be considered: Do not remove or

replace the fuse when the apparatus is energized.

7. The ambient temperature range is: 0°C ≤ T

≤ +55°C (for extended details

please note certificate).

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WAGO 750-630 Service Manual Page 27