Siemens SIRIUS 3RK3 - Em 2;4 F-DI 1;2 F-Ro

Technical data
9.4 EM 2/4F-DI 1/2F-RO
Modular Safety System 3RK3
292 System Manual, 10/2008, 926 2530-02 DS 02
9.4 EM 2/4F-DI 1/2F-RO
Technical data of the expansion module 2/4F-DI 1/2F-RO
Device data
Number of sensor inputs (1-channel) 4
Number of test outputs 2
No. of outputs 2
Height
• Screw terminals
• Spring-loaded terminals
102 mm
105 mm
Width 22.5 mm
Depth 124 mm
Weight 160 g
Electrical data
Supply voltage /
rated control supply voltage Us
24 V DC
Work area 0.85 to 1.15 x Vs
Rated insulation voltage V
i
300 V
Rated impulse strength V
imp
4 kV
Total power consumption 85 mA
Rated power at Vs 2.0 W
Utilization category to EN 60947-5-1
(relay outputs)
• AC15 at 230 V
• DC13 at 24 V
2 A
1 A
Mechanical service life 10 x 10
6
operating cycles
Max. switching frequency z at rated operational current 1000 1/h
Conventional thermal current I
th
2 A
Output contacts protected with fuses NH type 3NA,
DIAZED type 5SB, NEOZED type 5SE
• Operating class gL/gG
• Operating class quick response
4 A
6 A
Safety data
Probability of a dangerous failure per hour (PFH
d
) 3.79 x 10
-9
1/h
Probability of a dangerous failure on request (PFD) 5.85 x 10
-6
Characteristic values for cables
Max. permissible cable resistance 100 Ω
Max. permissible cable length from device to sensor
(when CU 1.5 mm
2
and 150 nF/km)
1000 m
Max. permissible line capacity 330 nF