Siemens SIRIUS 3RK3 - Em 4;8 F-Ro

Technical data
9.7 EM 4/8F-RO
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
295
9.7 EM 4/8F-RO
Technical data of the expansion module 4/8F-RO
Device data
No. of outputs 8
Height
• Screw terminals
• Spring-loaded terminals
102 mm
105 mm
Width 45 mm
Depth 124 mm
Weight 400 g
Electrical specifications
Supply voltage/
Rated control supply voltage Us
24 V DC
Work area 0.85 to 1.15 x Vs
Rated insulation voltage U
i
300 V
Rated surge capacity U
imp
4 kV
Total power consumption 140 mA
Rated power at Vs 3.0 W
Utilization category to EN 60947-5-1
(relay outputs)
• AC 15 at 230 V
• DC 13 at 24 V
3 A
3 A
Mechanical endurance 10 x 10
6
switching cycles
Max. switching frequency z at rated operational current 360 1/h
Conventional thermal current I
th
3 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 (PFHD
d
) 7.15 x 10
-9
1/h
Probability of a dangerous failure on request (PFD) 4.36 x 10
-5
1/h