Chapter 12  Operating instructions 
  S300 
124  © SICK AG • Industrial Safety Systems • Germany • All rights reserved  8010948/YY96/2016-02-17 
Subject to change without notice 
Technical specifications 
Minimum  Typical  Maximum 
Electrical data 
 
Supply voltage (SELV)
2
5)26)
  16.8 V  24 V  30 V 
Permissible residual ripple
2
7)
  ±5 %
Switch on current
28)
  2 A
Operating current without output load
29)
  0.25 A  0.33 A 
Operating current with max. output load
29)
  1.7 A 
Power consumption without output load
2
9)
  6 W 8 W
Power consumption with maximum output 
load
2
9)
 
41 W 
Power consumption in the stand-by mode or 
park mode without output load
2
9)
 
6 W 8 W
Electrical connection  System plug with screw terminal 
connections 
Technical specifications, screw type terminal 
FE 
 
Cross-section of rigid cores  0.3 mm²    1.6 mm² 
Cross-section of flexible cores
3
0)
  0.3 mm²    1.6 mm² 
American Wire Gauge (AWG)  22    14 
Insulation stripping length for the cores    5 mm   
Screw tightening torque      0.5 Nm 
Technical specifications, screw terminals       
Cross-section of rigid cores  0.14 mm²    1.5 mm² 
Cross-section of flexible cores
31)
  0.14 mm²    1.0 mm² 
American Wire Gauge (AWG)  26    16 
Insulation stripping length for the cores    5 mm   
Screw tightening torque  0.22 Nm    0.3 Nm 
Cable length for power supply tolerance ±10%
For wire cross-section 1 mm²      50 m 
For wire cross-section 0.5 mm²      25 m 
For wire cross-section 0.25 mm²      12 m 
Cable length for power supply tolerance ±5%
For wire cross-section 1 mm²      60 m 
For wire cross-section 0.5 mm²      30 m 
For wire cross-section 0.25 mm²      15 m 
25)
  Operation only in a short-circuit protected system with max. 8 A. 
26)
  To meet the requirements of the relevant product standards (e.g. IEC 61496<1), the external voltage supply 
for the devices (SELV) must be able to bridge a brief mains failure of 20 ms. Power supplies according to EN 
60204<1 satisfy this requirement. Suitable power supplies are available as accessories from SICK. 
27)
  The absolute voltage level must not drop below the specified minimum voltage. 
28)
  The load currents for the input capacitors are not taken into account. 
29)
  With a typical supply voltage of 24 V. 
30)
  Core terminating sleeves are not required. 
31)
  Core terminating sleeves are not required.