SIEMENS
10/143
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate
Relays
SIRIUS 3RS10, 3RS11, 3RS20, 3RS21 Temperature Monitoring Relays
Relays, digitally adjustable for up to 3 sensors
10
■
Selection and ordering data
•
For temperature monitoring of solids, liquids, and gases
•
For two- and three-conductor resistance sensors or
thermocouples
•
Temperature range dependent on sensor type
- 3RS10: -50 to +500 °C
- 3RS20: -58 to +932 °F
•
Wide voltage range versions are electrically separated
• Non-volatile
•
Short-circuit and open-circuit detection in sensor circuit
•
Digitally adjustable, with illuminated LCD
•
Overshoot, undershoot or range monitoring adjustable
•
Exact sensor type and number of sensors can be set
•
2 separately adjustable threshold values
•
1 hysteresis; applies to both thresholds (0 to 99 K)
•
1 delay time; applies to both thresholds (0 to 999 s)
•
Adjustable open/closed-circuit principle
•
With connectable and disconnectable error memory
•
Permanent display of actual value in °C or °F and tripping
state
•
1 CO contact each per threshold value
•
1 NO for sensor monitoring
PU (UNIT, SET, M)
= 1
PKG*
= 1 unit
PG
= 41H
1)
NTC type: B57227-K333-A1 (100 °C: 1.8 k
; 25 °C: 32.762 k
).
For accessories,
see page 10/144
.
Sensors
Num-
ber of
sen-
sors
Measuring
range (limit of
measuring
range depen-
dent on sensor)
Rated control
supply voltage
U
s
SD
Screw terminals
SD
Spring-type
terminals
V
d
Article No.
Price
per PU
d
Article No.
Price
per PU
Motor monitoring relays, digitally adjustable for up to 3 sensors,
width 45 mm; 1 CO + 1 CO + 1 NO
3RS1041-1GW50
PT100/1000;
KTY83/84;
NTC
(resistance
sensors)
1)
1 ... 3
sen-
sors
-50 ... +500 °C
24 ...240 AC/DC
2
3RS1041-1GW50
2
3RS1041-2GW50
-58 ... +932 °F
24 ...240 AC/DC
10
3RS2041-1GW50
15
3RS2041-2GW50
© Siemens AG 2016