MEDC DB20C User Manual
Page 7
© MEDC 2013
11/13
IIC
Certified to EN60079-0, EN60079-1, EN60079-7, IEC61241-0 & IEC61241-1
Ex de unit (ATEX certification No. Baseefa05ATEX0199X)
Ex de IIC T4 (Tamb = -50°C to +70°C)
T4 (Tamb = -50°C to +55°C)
T5 (Tamb = -50°C to +40°C)
Ex tD A21 IP65 T130°C (Tamb = -50°C to +70°C)
T115°C (Tamb = -50°C to +55°C)
T100°C (Tamb = -50°C to +40°C)
The ATEX certificate and product label carry the ATEX group and category marking:
II 2 GD
Where:
Signifies compliance with ATEX
II
Signifies suitability for use in surface industries
2
Signifies suitability for use in a zone 1 area
G
Signifies suitability for use in the presence of gases
D
Signifies suitability for use in the presence of dust
These units also have the following approvals:
Ingress protection: IP66 & IP67 to IEC60529
7.0 SPECIAL CONDITIONS FOR SAFE USE
For all units:
1.
Not more than one single or multiple strand wiring lead shall be connected into either side of any
terminal, unless multiple conductors have been joined in a suitable manner, e.g. two conductors
into a single insulated crimped boot lace ferrule.
2.
Leads connected to the terminals shall be insulated for at least 275V and this insulation shall
extend to within 1mm of the metal of the terminal throat.
3.
All terminal screws, used and unused, shall be tightened down.
4.
Minimum creepage and clearance distances between the terminals and adjacent conductive parts
(including cable entry devices) must be at least 5mm.
5.
Painting and surface finishes, other than those applied by the manufacturer, are not permitted.
6.
The cable entries shall be sealed, in accordance with the applicable installation code of practice,
to ensure that the IP65 ingress protection rating is maintained
In addition for the IIC units:
7.
This apparatus is not suitable for use in atmospheres containing carbon disulphide.