12
Power supply
module
The power supply module forms the voltages
required for the relay modules and the auxiliary
relay module. The power supply module is
located behind the system panel of the protec-
tion relay and can be withdrawn after removal of
the system panel.
The power supply module is available in two
versions as follows:
SPGU 240A1:
- rated voltage
U
n
= 110/120/230/240 V ac
U
n
= 110/125/220 V dc
- operative range U = 80...265 V ac/dc
SPGU 48B2
- rated voltage
U
n
= 24/48/60 V dc
- operative range U = 18...80 V dc
The voltage range of the power supply module
fitted in the relay is marked on the system panel
of the relay.
The power supply module is transformer con-
nected, i.e. the primary side and the secondary
circuits are galvanically isolated. The primary
side is protected by a fuse F1, located on the PC
board of the module. The fuse used in SPGU
240A1 is 1 A (slow) and that one used in SPGU
48B2 is 4 A (slow).
The green LED U
aux
on the front panel is lit
when the power supply module is in operation.
The supervision of the voltages supplying the
electronic circuits are integrated into the relay
modules. A self-supervision alarm is received, if
a secondary voltage deviates from its rated value
by more than 25%.
Technical data
Energizing inputs
Rated current I
n
0.2 A
1 A
5 A
Terminal numbers
X0/1-3,4-6
X0/1-2,4-5
X0/7-9,37-39 X0/7-8, 37-38
X0/25-27 X0/25-26
Thermal current withstand
- continuously
1.5 A
4 A
20 A
- for 10 s
5 A
25 A
100 A
- for 1 s
20 A
100 A
500 A
Dynamic current withstand
- half-wave value
50 A
250 A
1250 A
Input impedance
<750 m
Ω
<100 m
Ω
<20 m
Ω
Voltage inputs
Rated voltage U
n
, selectable
100 V (110 V/120 V)
Terminal numbers
X0/13-14, 16-17, 28-29
Continuous voltage withstand
2 x U
n
Rated burden of voltage input at U
n
<0.5 VA
Output contacts
Trip contacts
Terminal numbers
X1/15-16, 11-12-13-14
X2/1-2, 3-4
- rated voltage
250 V ac/dc
- continuous current carrying capacity
5 A
- make and carry for 0.5 s
30 A
- make and carry for 3 s
15 A
Breaking capacity for dc when the control
circuit time constant L/R
≤
40 ms at the
control voltage levels
- 220 V dc
1 A
- 110 V dc
3 A
- 48 V dc
5 A
Contact material
AgCdO
2
Summary of Contents for SPAA 341 C /E351
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