ABB Relion SMU615, Technical Manual

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11 Technical data
11.1 Dimensions
Table 290: Dimensions
Description Value
Width Frame 177 mm
Case 164 mm
Height Frame 177 mm (4U)
Case 160 mm
Depth 201 mm (153 + 48 mm)
Weight Complete merging unit 4.1 kg
Plug-in unit only 2.1 kg
11.2 Power supply
Table 291: Power supply
Description Type 1 Type 2
Nominal auxiliary voltage U
n
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 merg-
ing unit
50 ms at U
n
Auxiliary voltage 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 <13.0 W (nominal)/<18.0
W (max.)
AC <16.0 W (nominal)/<21.0 W
(max.)
DC <13.0 W (nominal)/<18.0
W (max.)
Ripple in the DC auxiliary volt-
age
Max 15% of the DC value (at frequency of 100 Hz)
Fuse type T4A/250 V
Technical data 1MRS758407 C
256 SMU615
Technical Manual