Article No. Scheme - Siemens SIRIUS 3RN2 Manual

Introduction

1.6 Article No. scheme

1.6 Article No. scheme
Note
The Article No. scheme is for illustrative purposes only and for better understanding of the
logic behind the article numbers.
For your orders, please use the article numbers quoted in the catalog in the Selection and
ordering data.
Table 1- 1 Article No. scheme
Digit of the Article No.
SIRIUS thermistor
motor protection relay
Generation
Sensor type
Number/type of sensor
circuits
Resetting and further
functions
Connection system
Output relay
Supply voltage
Waveform of the
supply voltage
Relay response to
power failure
Example
12
1 - 3 4 5 6 7
3 R N ☐ ☐ ☐ ☐
☐
☐
☐
☐
3 R N 2 0 0 0
8 9 10 11 12
- ☐ ☐ ☐ ☐ 0
-
-
-
-
- ☐
- ☐
- ☐
- ☐
☐
- 1 A A 3 0
2 Generation
0 Type A PTC
0 1 sensor circuit, supply voltage = relay
output voltage
1 1 sensor circuit
2 2 sensor circuits for warning and tripping
0 Automatic reset
1 Manual reset, with wire-break and short-
circuit detection
2 Manual/auto/remote reset, non-volatile,
with wire-break and short-circuit
detection
3 Manual/auto/remote reset, non-volatile,
with wire-break and short-circuit
detection, with protective separation
1 Screw terminal
2 Spring-loaded terminal (push-in)
A 1 CO contact
B 2 CO contacts
C 1 NO contact + 1 NC contact
D 1 NO contact + 1 CO contact
G 2 CO contacts, hard gold-plated
A 24 V
W 24 ... 240 V
3 50/60 Hz AC/DC
4 DC
0 Monostable
1 Bistable
8 Special versions
SIRIUS thermistor motor protection
relay, 2nd generation, type A PTC, 1
sensor circuit, automatic reset, screw-
type terminals, 1 CO, 24 V, 50/60 Hz
AC/DC, monostable
SIRIUS 3RN2 thermistor motor protection relay
Manual, 10/2016, A5E34244868002A/RS-AA/001