SK 31 Safety Relay
9. Technical specifications
Supply voltage
Mains voltage:
Low voltage:
Power consumption
Terminating resistor - sensor
nominal value
upper switching point R
lower switching point R
Relay stages
nominal current DC
nominal current AC
Mech. life-time
Safety relay switching times
Response time
Turn-off time
Test input voltage
Input voltage
Housing
Polycarbonate with transparent cover
Dimensions (HxWxD)
Housing
incl. screw-fittings
for snap-on rail mounting
Protection class
with screw-fittings
with blanking plug
Weight
Temperature range
Connection cable cross-section
single- or fine-stranded cable 0,75-1,5 mm
Safety category
EN ISO 13849-1:2008 Category 2 PL d
MTTFd 110 years, DC 90%
(Electronic)
MTTFd 3477 years
(Electromechanics)
B10d 200000
MTTFd 114 years (Nop 17520)
20
Relay
U
230 V AC 50/60 Hz
Mains
U
12-24 V AC/DC +10%
E
P
0,5 VA
230 V AC
max
P
0,5-1 VA 12-24 V AC/DC
max
R
= 8,2 kΩ
Nom
> 12,7 kΩ
AO
< 4,6 kΩ
AU
1,5 A
30 V DC
0,5 A
250 V AC
> 10
actuations
5
< 5 ms
approx. 100 ms
U
12 V ... 28 V AC/DC
Test
120 x 80 x 57 mm
120 x 100 x 57 mm
97 x 75 x 35 mm
IP65
IP54
280 g
-20 °C to +55 °C
2
A1
Pow er unit
A2
+Ub
Rref
X1
X2
X2
Uref
Test
Signal
Test unit
Simplified diagram SK 31
A1
Pow er unit
A2
+Ub
Rref
X1
X2
X2
Uref
Test
Signal
Test unit
Simplified diagram SK 31-31 W
Certificate no.
44 205 10 384655-001
Test report no.
10 205 384655-001
R elay
14
13
R elay
14
12
13