16
X2
A1
A2
Power unit
+Ub
Rref
X2
X1
Uref
13
14
Relay
Test
Signal
Test unit
Functional Diagram SK 31
Technical Data
Supply voltages
Mains Voltage:
U
Main
230 V AC 50/60Hz
Low voltage:
U
E
12-24V AC/DC +10%
Power consumption
P
max
0,5 VA
230 V AC
P
max
0,5-1 VA
12-24 V AC/DC
Connection resistor PSS
R
A
8,2 k
Ω
R
AO
> 12,7
k
Ω
upper switching threshold
R
AU
< 4,6
k
Ω
lower switching threshold
Safety class
Category 2 according to EN 954-1 (only with testing)
Relay
Max. switching voltage
250 V
~
/ 30 V -
Max. switching current
2 A
~
/ 2 A
-
Mechanical durability
>
10
6
activations
Switching time safety relay
Reaction time
< 5 ms
Release time
approx. 100 ms
Test Input Voltage
Test Input Voltage
U
Test
12 V ... 28 V AC/DC
Enclosure
Polycarbonate with transparent lid
Enclosure dimensions HxWxD 120 x 80 x 57 mm
Dimensions incl. glands
HxWxD 120 x 100 x 57 mm
Dimensions for snap-on version
HxWxD 97 x 75 x 35 mm
Protection class
IP65 with cable glands
IP54 with sealing plugs
Weight
280 g
Temperature range
-20°C bis +55°C
Cable cross-section
0,75-1,5 mm
2
Single or fine strand wire
Certificate No.: 78/205/320947a
Certificate No.: 78/205/320947b
Certificate No.: 78/205/320947c
Technical Report No.: 05/YTT320947
Safety Controller SK 31
English
