Siemens 3RS2

Performance feature 3RS2600, 3RS2800 3RS2600 + 3RS2900, 3RS2800 + 3RS2900
Number of sensors that can be moni‐
tored
1 ≤ 3
Adjustable hysteresis values 1 ... 999 °C/°F 1 ... 999 °C/°F
Number of adjustable limit values 2 2
Adjustable trip delay time delay O󹪜; 0.1 ... 999 s O󹪜; 0.1 ... 999 s
Adjustable ON-delay time OnDelay O󹪜; 0.1 ... 999 s O󹪜; 0.1 ... 999 s
Adjustable monitoring Overshoot / undershoot / window mon‐
itoring
Overshoot / undershoot / window monitoring
Reset
1)
Auto / remote reset / manual reset Auto / remote reset / manual reset
Unit °C/°F °C/°F/ (%, mA)
2)
1) See Reset (Page 43)
2) %, mA - applies only to the universal analog input 4 mA ... 20 mA
3) NTC Type: B57227-K333-A1 (100 °C: 1.8 kΩ; 25 °C: 32.762 kΩ)
5.6 Connection systems
The devices can be supplied with the connection systems detailed below:
• Screw terminals
• Spring-type terminal (Push In)
5.7 Sensor types
The digitally adjustable temperature monitoring relays support the connection of the following
types of sensor, depending on the version:
Resistance sensors
• Pt100
• Pt1000
• KTY83-110
• KTY84
• NTC
1)
1) NTC type: B57227-K333-A1 (100 °C: 1.8 kΩ; 25 °C 32.762 kΩ)
Details are provided in Chapter Resistance sensors (Page 69).
Digital devices
5.7 Sensor types
3RS2 temperature monitoring relay
32 Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002