Siemens SIRIUS 3RK3 Equipment Manual page 368

Technical data
8.3 3RK3 Basic central unit
Max. permissible cable resistance
Max. permissible cable length from device to sensor
(for CU 1.5 mm and 150 nF/km)
2
Max. permissible cable capacitance
Dark period semiconductor outputs
The number of function elements that can be processed by one MSS 3RK3 depends on the type of function elements.
1)
Protective separation, reinforced insulation 4 kV between input circuit and output contact current paths.
2)
Time from instant an output is switched off to the instant the output reaches a state that permits it to be switched on again.
3)
The mechanical durability may be reduced, depending on the contact load.
4)
368
100 Ω
1000 m
(i.e., max. total cable length of 2000 m)
330 nF
< 1 ms
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
SIRIUS 3RK3 Modular Safety System