Connection System; Influencing Factors - ABB Relion 670 Series Technical Reference Manual

Section 17
IED hardware
17.5.2
17.5.3
678
Table 471: Water and dust protection level according to IEC 60529
Front IP40 (IP54 with sealing strip)
Rear, sides, top and IP20
bottom
Table 472: Weight
Case size
6U, 1/2 x 19"
6U, 3/4 x 19"
6U, 1/1 x 19"

Connection system

Table 473: CT and VT circuit connectors
Connector type
Screw compression type
Terminal blocks suitable for
ring lug terminals
Table 474: Binary I/O connection system
Connector type
Screw compression type
Terminal blocks suitable for
ring lug terminals
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.

Influencing factors

Table 475: Temperature and humidity influence
Parameter Reference value
Ambient temperature, +20 °C
operate value
Relative humidity 10%-90%
Operative range 0%-95%
Storage temperature -40 °C to +70 °C
Rated voltage and current
250 V AC, 20 A
250 V AC, 20 A
Rated voltage
250 V AC
300 V AC
Nominal range
-10 °C to +55 °C
10%-90%
-
1MRK 505 208-UEN B
Weight
£ 10 kg
£ 15 kg
£ 18 kg
Maximum conductor area
2
4 mm (AWG12)
2
2 x 2.5 mm (2 x AWG14)
2
4 mm (AWG12)
Maximum conductor area
2
2.5 mm (AWG14)
2 × 1 mm 2 (2 x AWG18)
2
3 mm (AWG14)
Influence
0.02% /°C
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Technical reference manual