Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
003421-HW-Pepperl-O21
| Number of Channels | 1 |
| Module Type | Zener Barrier |
| Barrier Type | Zener Barrier |
| Maximum Voltage | 250V |
| Hazardous Area Certification | ATEX |
| Safety Current Resistance | 327Ω |
| Maximum Operating Temperature | +60°C |
| Supply Voltage | 26.9V dc |
| Minimum Operating Temperature | -20°C |
| Maximum Current | 93mA |
| Safety Current Maximum | 93mA |
| Safety Voltage Maximum | 250 V |
| Operating Temperature Range | -20 → +60°C |
Zener barriers provide cost saving Ex-protection for various applications in process automation systems. The amount of energy transferred to the hazardous location is limited to a safe level incapable of igniting the explosive atmosphere.
Typical application - transmitters, transducers, solenoid valves and relays
Certificate No.
BAS 01 ATEX 7005
Group and Category
[EEx ia] IIC Class 1, Div1, Groups A-G
Isolation Barriers
Pepperl+Fuchs shunt zener diode barriers are for use as safety interfaces between intrinsically safe and non-intrinsically safe circuits. They are manufactured from Makrolon® and designed to conduct electrical signals - in either direction - between safe and hazardous areas and to limit the amount of energy which can be transferred from a safe to a hazardous area in the event of fault conditions occurring in the safe area. All systems shown are licensed for [EEx ia] IIC Class 1, Div1, Groups A-G