PEPPELER FUCHS Area
PEPPELER FUCHS Area
PEPPELER FUCHS Area
ZONE 0 if present continuously or for ZONE 1 if likely to occur in normal ZONE 2 if not likely to occur in normal ZONE 20 if present continuously, or for ZONE 21 if likely to occur occasionally in ZONE 22 if not likely to occur in normal
long-term or frequently. operation occasionally. operation but, if it does occur, will long-term or frequently for normal operation. operation but, if it does occur, will
persist for a short period only. short periods. persist for a short period only.
“The employer or person responsible for safety shall classify places where explosive atmospheres may occur into zones in accordance with Annex I [...]” and
“[...] shall ensure that the minimum requirements laid down in Annex II are applied [...] to these zones.”
Source: directive 1999/92/EC, article 7
II 2 G E Ex ib IIC T4
MARKING ACCORDING TO IEC/EN 60079 (VALID SINCE 2004)
Subject to reasonable modifications due to technical advances • Copyright PEPPERL+FUCHS • Printed in Germany • Part. No. 204806 01/10 01
Marking code Ex d Ex e Ex p Ex m Ex o Ex q Ex i Ex n
is provided with an additional marking that
nA Non-sparking
describes the usage site. First the device
equipment
groups appear, then the category and
(rotating machines,
finally the information concerning the
fuses, luminaries,
atmosphere (gas and/or dust).
Type of General Flameproof Increased Pressurized Encapsulation Oil Powder Intrinsic Type of measuring instru-
The following category division applies to
Protection requirements enclosure safety apparatus immersion filling safety protection “n” ments and low
device group II:
power equipment)
Protection Transmission Prevention Ex atmosphere Ex atmosphere Ex atmosphere Ex atmosphere Energy Different
principle of an explosion of sparks is isolated from is isolated from is isolated from is isolated from restriction protection nC Sparking equip-
to the outside and excessive the source of the source of the source of the source of of sparks principles ment with hot
is excluded temperatures ignition ignition ignition ignition and for Zone 2 surfaces (closed
temperatures switchgear and
Category 1 Category 2 Category 3 non-igitable
Very high High Normal Application components,
safety measure safety measure safety measure in zone 1 or 2 1 or 2 1 or 2 0, 1 or 2 1 or 2 1 or 2 0,1 or 2**** 2 hermetically sealed
equipment, tightly
Required safety Required safety Required safety CENELEC* EN 50014 EN 50018 EN 50019 EN 50016 EN 50028 EN 50015 EN 50017 EN 50020 EN 50021 sealed equipment)
by means of in the case of during normal standard
2 protective frequently operation IEC/EN IEC 60079-0 IEC 60079-1 IEC 60079-7 IEC 60079-2*** IEC 60079-18 IEC 60079-6 IEC 60079-5 IEC 60079-11** IEC 60079-15 nR Equipment
measures / occuring equip- standard protected by a
2 faults ment faults / restricted breathing
1 fault Use All Control units, Branching and Control Relay and Transformers, Transformers, Measurement, All applications enclosure
applications controllers, connecting cabinets, engine coils, relays, relays, control and for zone 2
For use in Zone For use in Zone For use in Zone engines, boxes, engines, electronics, start-up condensors regulation nL Energy-limited
command & housings, measurement solenoid controls, technology, equipment and
0 20 1 21 2 22
monitoring engines, and analytical valves, switching instrumentation electric circuits (to
Atmosphere Atmosphere Atmosphere units, power luminaires, equipment, connecting devices be integrated into
G D G D G D electronics terminals computers systems Ex ic-Standard)
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