Table 4-2 Ordering Data Of The Reference Junction - Siemens SIMATIC S7-300 Manual

Priniples of analog value processing
4.6 Wiring thermocouples
Recommended compensating box
We recommend the use of a SIEMENS reference junction with integrated power supply unit
as a compensating box. The table below shows the relevant ordering data.
Table 4-2 Ordering data of the reference junction
Recommended compensating box
Reference junction with integrated power supply unit, for rail mounting
Auxiliary power
Wiring to thermocouple
Fe-CuNi
Fe/Cu Ni
Ni Cr/Ni
Pt 10% Rh/Pt
Pt 13% Rh/Pt
Cu/Cu Ni
Cu/Cu Ni
Reference temperature 0 °C
4-18
220 VAC
24 VAC
24 VDC
110 VAC
Type L
Type J
Type K
Type S
Type R
Type U
Type T
Order number
M72166-xxx00
B1
B2
B3
B4
1
2
3
4
5
6
7
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04