Hardware
IED
Table 160. Case
Material Steel sheet
Front plate Steel sheet profile with cut-out for HMI
Surface treatment Aluzink preplated steel
Finish Light grey (RAL 7035)
Table 161. Water and dust protection level according to IEC 60529
Front IP40 (IP54 with sealing strip)
Sides, top and bottom IP20
Rear side IP20 with screw compression type
IP10 with ring lug terminals
Table 162. Weight
Case size
Weight
6U, 1/2 x 19”
£ 10 kg/22 lb
6U, 3/4 x 19”
£ 15 kg/33 lb
6U, 1/1 x 19”
£ 18 kg/40 lb
Electrical safety
Table 163. 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
Table 164. 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)
Table 165. 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)
Because of limitations of space, when ring
lug terminal is ordered for Binary I/O
connections, one blank slot is necessary
between two adjacent IO cards. Please refer
to the ordering particulars for details.
1MRK 505 346-BEN -
Line differential protection RED670 2.1 IEC
Product version: 2.1
108 ABB
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