Central Unit - Siemens Sirius 3RK3 System Manual

Technical data

9.2 Central unit

9.2 Central unit
Technical data of the 3RK3 Basic
Device data
Number of sensor inputs (1-channel)
Number of test outputs
No. of outputs
Height
Screw terminals
•
Spring-loaded terminals
•
Width
Depth
Weight
Electrical data
Supply voltage /
rated control supply voltage Us
Work area
Rated insulation voltage V
Rated impulse voltage V
imp
Total power consumption
Rated power at Vs
Utilization category to EN 60947-5-1
(relay outputs)
AC-15 at 230 V
•
DC-13 at 24 V
•
(semiconductor outputs)
DC-13 at 24 V
•
Mechanical service life
Max. switching frequency z at rated operational
current
Conventional thermal current I
semiconductor)
Max. protection of relay contacts with fuses NH type
3NA, DIAZED type 5SB, NEOZED type 5SE
Operating class gL/gG
•
Operating class quick response
•
Safety data
Probability of a dangerous failure per hour (PFH
Probability of a dangerous failure on request (PFD)
290
i
(relay /
th
)
d
8
2
1 redundant relay output
1 redundant semiconductor output
111 mm
113 mm
45 mm
124 mm
300 g
Device power supply via power supply unit in accordance with
IEC 60 536 protection class III (SELV or PELV)
24 V DC
0.85 to 1.15 x Vs
300 V
4 kV
185 mA
4.5 W
2 A
1 A
1.5 A
10 x 10 operating cycles (relay)
6
1000 1/h
2 / 1.5 A
4 A
6 A
5.14 x 10 1/h
-9
1.28 x 10 1/h
-5
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02