Pepperl+Fuchs Z-System - Color Identification

Z-System – Zener Barriers
Product Specifications
2016-03
13
2.4 Color Identification
The color identification of the devices has the following meaning:
• Red (1) indicates DC devices with positive polarity.
• Black (2) indicates DC devices with negative polarity.
• Gray (3) indicates AC devices.
• Blue (4) indicates the terminals of the field side (hazardous area).
Figure 2.7 Color identification of devices
1 red
2 black
3 gray
4 blue
56
78
12
34
56
78
12
34
56
78
12
34
21 3
4