16. Technical data
Table 5. Dimensions
Description Value
Width Frame 262.2 mm
Case 246 mm
Height Frame 177 mm, 4U
Case 160 mm
Depth 201 mm
Weight Complete IED max. 5.5 kg
Plug-in unit only max. 3.0 kg
Table 6. Power supply
Description Type 1 Type 2
U
aux
nominal 100, 110, 120, 220, 240 V AC, 50 and 60 Hz 24, 30, 48, 60 V DC
48, 60, 110, 125, 220, 250 V DC
Maximum interruption time in the auxiliary
DC voltage without resetting the IED
50 ms at U
n
rated
U
aux
variation 38...110% of U
n
(38...264 V AC) 50...120% of U
n
(12...72 V DC)
80...120% of U
n
(38.4...300 V DC)
Start-up threshold 19.2 V DC (24 V DC × 80%)
Burden of auxiliary voltage supply under
quiescent (P
q
)/operating condition
DC <12.0 W (nominal)/<19.0 W (max)
AC <13.0 W (nominal)/<21.0 W (max)
DC <12.0 W (nominal)/<19.0 W (max)
Ripple in the DC auxiliary voltage Max 15% of the DC value (at frequency of 100 Hz)
Fuse type T4A/250 V
Table 7. Energizing inputs
Description
Value
Rated frequency 50/60 Hz ± 5 Hz
Current inputs Rated current, I
n
1/5 A
1)
Thermal withstand capability:
• Continuously 20 A
• For 1 s 500 A
Dynamic current withstand:
• Half-wave value 1250 A
Input impedance <20 mΩ
Voltage inputs Rated voltage 60...210 V AC
Voltage withstand:
• Continuous 240 V AC
• For 10 s 360 V AC
Burden at rated voltage <0.05 VA
1) Residual current and/or phase current
Transformer Protection and Control
1MRS757846 A
RET620
Product version: 2.0
18 ABB
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