
Quick Start Guide Supplement
D104148X012
DLC3020f
July 2020
3
Conditions for Safe Use
1. The external earth connection facility should be connected reliably.
2. Electrical data: 32V max.
3. As the flameproof product, suitable certified cable glands or blanking plugs for unused holes approved by ExTL
according to GB3836.1-2010 and GB3836.2-2010 with Ex marking “Ex d IIC Gb” shall be used and correctly
installed; as the dust product, suitable certified cable glands or blanking plugs for unused holes approved by ExTL
according to GB12476.1-2013 and GB12476.5-2013 with Ex marking “Ex tD A21 IP66” shall be used and correctly
installed, after installation, degree of protection of enclosure is at least IP66 according to GB4208-2008.
4. Any maintenance shall be performed only when the warning of “Do not open when energized” is observed.
5. Clean the surface of this product whenever used in combustible dust atmosphere.
6. Use the connection cable which is at least endurance to 87_C when wiring.
7. The user shall not change the configuration in order to maintain/ensure the explosion protection performance of
this product. Any change may impair safety.
8. For installation, use and maintenance of this product, the end user should observe the instruction manual and
the following standards:
GB50257-2014 “Code for construction and acceptance of electric device for explosion atmospheres and fire hazard
electrical equipment installation engineering”.
GB3836.13-2013 “Explosive atmospheres- Part 13: Equipment repair, overhaul and reclamation”.
GB3836.15-2017 “Electrical apparatus for explosive gas atmospheres- Part 15: Electrical installations in hazardous
area (other than mines)”.
GB3836.16-2017 “Electrical apparatus for explosive gas atmospheres- Part 16: Inspection and maintenance of
electrical installation (other than mines)”.
GB15577-2018 “Safety regulations for dust explosion prevention and protection”. (Only if installed in dust
hazardous areas)
Type n
Certificate Number GYJ20.1040
Ex nA IIC T5/T6 Gc;
Ex tD A21 IP66 T87_C/ T80_C
Conforms to:
GB 3836.1-2010 Explosive atmospheres - Part 1: Equipment - General requirements
GB 3836.8-2014 Explosive atmospheres - Part 8: Equpment protection by type of protection “n”
GB 12476.1-2013 Electrical apparatus for use in the prsence of combustible dust - Part 1: General requirements
GB 12476.5-2013 Electrical apparatus for use in the presence of combustible dust - Part 5: Protection by enclosures
“tD”
Conditions for Safe Use
1. The external earth connection facility should be connected reliably.
2. Electrical data: 32V max.
3. As “nA” product, suitable certified cable glands or blanking plugs for unused holes approved by ExTL according to
GB3836 shall be used and correctly installed; as the dust product, suitable certified cable glands or blanking plugs
for unused holes approved by ExTL according to GB12476.1-2013 and GB12476.5-2013 with Ex marking “Ex tD A21
IP66” shall be used and correctly installed, after installation, degree of protection of enclosure is at least IP66
according to GB4208-2008.
4. Any maintenance shall be performed only when the warning of “Do not open when energized” is observed.
5. Clean the surface of this product whenever used in combustible dust atmosphere.