13
Power supply
and output relay
module
The combined power supply and I/O relay
module is located behind the relay's system
panel. The module incorporates the power sup-
ply unit, the output relays with control circuits,
and the electronic circuits of the external con-
trol input. The power supply and output relay
module can be withdrawn after removal of the
system panel of the relay.
The power supply module is a transformer con-
nected, i.e. galvanically isolated primary and
secondary side, flyback-type DC/DC converter.
The primary side of the module is protected
with a fuse, F1, located on the PCB of the mod-
ule. The fuse size is 1 A (slow).
A green LED indicator U
aux
on the system panel
is lit when the power supply module is in op-
eration.
The combined power supply and I/O modules
are available in two versions with different in-
put voltage ranges:
SPTU 240R4 U
aux
= 80...265 V dc/ac
SPTU 48R4 U
aux
= 18...80 V dc
The system panel of the relay indicates the volt-
age range of the power supply module of the
relay assembly.
Technical data Energizing inputs 100 V 110 V
Energizing inputs 13-14, 16-17, 19-20 13-15, 16-18, 19-21
Rated voltage 100 V 110 V
Continuous voltage withstand 2.0 x U
n
Burden at rated voltage <0.5 VA
Rated frequency 50 Hz / 60 Hz
Permissible frequency range 45...65 Hz
Output contacts
Terminals 85-86, 87-88
- rated voltage 250 V ac/dc
- carry continuously 5 A
- make and carry for 0.5 s 30 A
- make and carry for 3.0 s 15 A
- breaking capacity for dc, when the
control circuit time-constant L/R<40 ms
at 48/110/220 V dc control circuit voltage 5 A/3 A/1 A
Contact material AgCdO
2
Signal contacts
Terminals 70-71-72
68-69
- rated voltage 250 V ac/dc
- carry continuously 5 A
- make and carry for 0.5 s 10 A
- make and carry for 3.0 s 8 A
- breaking capacity for dc, when the
control circuit time-constant L/R <40 ms
at 48/110/220 V dc control circuit voltage 1 A/0.25 A/0.15 A
Contact material AgCdO
2
External control inputs
Terminals 10-11, 22-23, 45-46, 47-48
External control voltage level 18...265 V dc or 80...265 V ac
Typical control current of input circuit 2...20 mA
Power supply and output relay module
Module, type SPTU 240 R4 80...265 V dc/ac
Module, type SPTU 48 R4 18...80 V dc
Power consumption under quiescent/
operating conditions about 5 W/7 W
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