Siemens SIMOTICS T-1FW6 - Page 57

Name Description
Minimum resistance when hot R in the PTC trip‐
let and in the individual PTC temperature sensor

See characteristic
atT≤ϑ
NAT
–5K
R≤3x550Ω +1x550Ω
R≤2200Ω
atT>ϑ
NAT
+5K
R≥3x1330Ω +1x1330Ω
R≥5320Ω
atT>ϑ
NAT
+15K
R≥3x4000Ω +1x4000Ω
R≥16000Ω
Typical characteristic R(ϑ) of a PTC temperature
sensor according to DIN44081

.
.
.
.
1$7 1$7
r&




5
1$7
1$7

Technical features of the KTY84 temperature sensor
The KTY 84 has a progressive temperature resistance characteristic that is approximately linear.
In addition, the KTY 84 has a low thermal capacity and provides good thermal contact with the
motor winding. The KTY84 has a continuous characteristic.
Table 3-10 Technical data of the KTY84 PTC thermistor
Name Description
Type KTY84 according toEN60034-11
Transfer range -40°C...+300°C
Resistance when cold (20°C) ca.580Ω
Description
3.4Design
1FW6 built-in torque motors
Operating Instructions, 09/2022, A5E52220812B AA 55