Special Conditions - Siemens SIWAREX JB Operating Instructions Manual

Use in hazardous area
Risk of explosion.
• Only use equipment that is approved for use in the intended hazardous area and labeled
• Do not use devices that have been operated outside the conditions specified for hazardous
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device or its components have already been operated in non-intrinsically safe circuits or
the electrical specifications have not been observed, the safety of the device is no longer
ensured for use in hazardous areas. There is a risk of explosion.
• Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
• Observe the specifications for the electrical data on the certificate and/or in Technical data
2.3.1

Special conditions

1. The permissible ambient temperature range is -40°°C to +80°°C. For ambient temperatures
≥60°°C, use corresponding temperature resistant cables.
2. The circuits that are connected must be only intrinsically safe or only non-intrinsically safe.
Mixing is not allowed. If the Ex terminal box type SIWAREX JB has been operated on non-
intrinsically safe circuits, the subsequent use as intrinsically safe equipment in the hazardous
area is not permitted.
3. Cable glands that are not required must be closed off with appropriate screw plugs.
4. If the Ex terminal box type SIWAREX JB is operated non-intrinsically safe or intrinsically safe
with circuits grounded on both sides, the inner and outer connection for the equipotential
bonding conductor must be connected to the local equipotential bonding.
5. Further information and safety instructions in the operating instructions must be observed
accordingly.
SIWAREX JB
Operating Instructions, 09/2022, A5E43011851-AD
WARNING
accordingly.
areas. If you have used the device outside the conditions for hazardous areas, make all Ex
markings unrecognizable on the nameplate.
WARNING
circuit.
(Page 31).
Safety information
2.3 Use in hazardous areas
11