MEDC SM87JB - Manual (Page 4)

07/13 © Cooper MEDC 2013
GENERAL ARRANGEMENT
4.0 MAINTENANCE
During the working life of the junction box, it should require little or no maintenance. However, if abnormal or
unusual environmental conditions occur due to plant damage or accident etc., then visual inspection is
recommended.
If a fault should occur, then the unit can be repaired by MEDC.
If you have acquired a significant quantity of heat detectors, then it is recommended that spares are also made
available. Please discuss your requirements with MEDC’s technical sales engineers.
5.0 CERTIFICATION/APPROVALS
IECEx:
Certified to IEC60079-0, IEC60079-1 & IEC60079-31
Ex d unit (IECEx certification No. IECEx BAS 13.0048)
Ex d IIC T6 Gb (Tamb. -55°C to +55°C)
T5 Gb (Tamb. -55°C to +70°C)
T4 Gb (Tamb. -55°C to +85°C)
Ex tb IIIC T85°C Db (Tamb. -55°C to +55°C) IP66/67
T100°C Db (Tamb. -55°C to +70°C)
T135°C Db (Tamb. -55°C to +85°C)
Note: For details of specific ratings with components (resistors, diodes, modules etc.) fitted, see the IECEx
certificate or certification label fitted to the unit.
The IECEx certificate and product label carry the IECEx equipment protection level marking.
Gb
Db
Where Gb signifies suitability for use in a Zone 1 surface industries area in the presence of gas.
Where Db signifies suitability for use in a Zone 21 surface industries area in the presence of dust.