ABB 1MRK002826-AG - Hardware; IED; Electrical safety; Connection system

Hardware
IED
SEMOD53385-1 v1M11778-1 v7
Table 165. Case
Material Steel sheet
Front plate Stainless steel with cut-out for HMI
Surface treatment Aluzink preplated steel
Finish Light grey (RAL 7035)
M12327-1 v5
Table 166. Water and dust protection level according to IEC 60529
Front IP40 (IP54 with sealing strip)
Sides, top and bottom IP40
Rear side IP20 with screw compression type
IP10 with ring lug terminals
M11777-1 v7
Table 167. Weight
Case size Weight
6U, 1/2 x 19”
£ 7.5 kg/16 lb
6U, 3/4 x 19”
£ 15 kg/33 lb
6U, 1/1 x 19”
£ 15 kg/33 lb
Electrical safety
GUID-2825B541-DD31-4DAF-B5B3-97555F81A1C2 v1
GUID-1CF5B10A-CF8B-407D-8D87-F4B48B43C2B2 v2
Table 168. Electrical safety according to IEC 60255-27
Equipment class I (protective earthed)
Overvoltage category III
Pollution degree 2 (normally only non-conductive pollution occurs except that occasionally a temporary conductivity caused by
condensation is to be expected)
Connection system
SEMOD53371-1 v1
SEMOD53376-2 v6
Table 169. CT and VT circuit connectors
Connector type Rated voltage and current Maximum conductor area
Screw compression type 250 V AC, 20 A
4 mm
2
(AWG12)
2 x 2.5 mm
2
(2 x AWG14)
Terminal blocks suitable for ring lug terminals 250 V AC, 20 A
4 mm
2
(AWG12)
M12583-1 v8
Table 170. Auxiliary power supply and binary I/O connectors
Connector type Rated voltage Maximum conductor area
Screw compression type 250 V AC
2.5 mm
2
(AWG14)
2 × 1 mm
2
(2 x AWG18)
Terminal blocks suitable for ring lug terminals 300 V AC
3 mm
2
(AWG14)
Generator protection REG670
1MRK 502 074-BEN M
Version 2.2
Hitachi Power Grids 125
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