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Description
3.3 Design
3.3.8.4
Zone 22 with type of protection Ex tc IIIB Dc (equipment dust explosion protection
provided by the enclosure "t")
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3.3.9
Terminal box
As an option, additional connecting terminals are available in the terminal box for monitoring
equipment. For larger machines, an additional terminal box can be optionally mounted. You
can see the number of available terminals in the circuit diagrams.
3.3.10
Paint finish
Paint finish
The machine is painted according to the instructions in your order.
Suitability test of the paint system for hazardous areas
Proof is available for the electrostatic suitability with explosion-proof machines for the paint
systems ordered by default. Such evidence is not available for paint systems that are non-
standard or specifically requested by customers. Take into consideration that the provided
evidence is not valid for repaintings.
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II
3
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CE - or EAC marking
Code for prevention of explosions
Device group: II not for mines susceptible to firedamp, but other hazardous zones
Device category: 3 for infrequent, short-term danger
Atmosphere: D for dust
Explosion protection: International
Type of protection: "tc" for protection by enclosure
Explosion group: IIIB for non-conductive dust
Maximum surface temperature: T 125° C
Device protection level: Dc for an extended protection level in flammable dust atmos-
pheres
D
Ex
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tc
IIIB
T125°C
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Operating Instructions, 03/2018, A5E41926185A
Dc
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