SIEMENS
10/48
Siemens IC 10 · 2017
Relays
Timing Relays
SIRIUS 3RP20 timing relays, 45 mm
10
■
Overview
SIRIUS 3RP20 timing relays
SIRIUS 3RP20 electronic timing relays for use in control systems
and mechanical engineering with:
•
1 or 2 CO contacts
•
Multifunction or monofunction
•
Wide voltage range or combination voltage
•
Single or selectable time setting ranges
•
Switch position indication and voltage indication by LED
Standards
The timing relays comply with:
•
IEC 60721-3-3 "Classification of environmental conditions"
•
IEC 61812-1 "Specified time relays for industrial use"
•
IEC 61000-6-2 and EN 61000-6-4
"Electromagnetic compatibility"
•
IEC 60947-5-1 "Low-voltage switchgear and controlgear –
Electromechanical control circuit devices"
•
IEC 60947-1, Appendix N "Protective separation"
Multifunction
The functions of the 3RP2005 multifunctional timing relays can
be set by means of the function selector switch. Insert labels can
be used to adjust different functions of the timing relay clearly
and unmistakably. The corresponding labels can be ordered as
an accessory. The same potential must be applied to
terminals A. and B.
For functions,
see 3RP2901 label set, page 10/53
.
Note:
The activation of loads parallel to the start input is not
permissible when using AC control voltage
(see diagrams)
.
Diagrams
Accessories
Label set for marking the multifunctional relay
Article No. scheme
Note:
The Article No. scheme shows an overview of product versions
for better understanding of the logic behind the article numbers.
For your orders, please use the article numbers quoted in the
selection and ordering data.
LED for indicating
"Timing relay excited"
(left)
LED for indicating
"Relay switched"
(right)
Time setting
range selector
switch
Device labeling
plate
Function
switch
Time setting
range adjuster,
analog
IC01_00376
NSB0_00895a
K2
A1
A2
N
L1
S1
K1
B1
NSB0_02045
K2
A1
A2
N
L1
K1
S1
K1
B1
Product versions
Article number
SIRIUS timing relays, 45 mm enclosure
3RP20
@
@
–
@
@
@
3
0
Product function/
time setting ranges
Multifunction
0
5
15 time ranges 0.05 s... 100 h
ON-delay
2
5
15 time ranges 0.05 s... 100 h
Connection type
Screw terminals
1
Spring-type terminal
2
Contacts
1 CO
A
2 CO
B
Control supply voltage
24 V AC/DC/100 ... 127 V AC
Q
Combination voltage
24 V AC/DC/200 ... 240 V AC
P
Combination voltage
24 ... 240 V AC/DC
W
Wide voltage range
Example
3RP20
0
5
–
1
A
P
3
0
© Siemens AG 2016