ABB RELION 670 Series Technical Manual page 1357

1MRK 502 066-UUS B
22.5 Technical data
22.5.1 Enclosure
Table
1048:
Material
Front plate
Surface treatment
Finish
Table
1049:
Front
Sides, top and bottom
Rear side
Table
1050:
Case size
6U, 1/2 x 19"
6U, 3/4 x 19"
6U, 1/1 x 19"
22.5.2 Electrical safety
Table 1051: Electrical safety according to IEC 60255-27
Equipment class
Overvoltage category
Pollution degree
Technical manual
Case
Steel sheet
Steel sheet profile with cut-out for HMI
Aluzink preplated steel
Light grey (RAL 7035)
Water and dust protection level according to IEC 60529
IP40 (IP54 with sealing strip)
IP20
IP20 with screw compression type
IP10 with ring lug terminals
Weight
I (protective earthed)
III
2 (normally only non-conductive pollution occurs except that occasionally a temporary
conductivity caused by condensation is to be expected)
Weight
£
£ 33 lb
£ 40 lb
GUID-2825B541-DD31-4DAF-B5B3-97555F81A1C2 v1
GUID-1CF5B10A-CF8B-407D-8D87-F4B48B43C2B2 v1
Section 22
IED hardware
IP16276-1 v1
IP16278-1 v1
M11778-1 v4
M12327-1 v3
M11777-1 v4
1351