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Pepperl+Fuchs Z787.H Zener Barrier 2 Channel High Power Version
Product Details:
Manufacturer : Pepperl+Fuchs
Product No. : Z787.H
Product Type : Zener Barrier
Features:
Function
The Zener Barrier prevents the transfer of unacceptably high energy from the safe area into the hazardous area.
The zener diodes in the Zener Barrier are connected in the reverse direction. The breakdown voltage of the diodes is not exceeded in normal operation. If this voltage is exceeded, due to a fault in the safe area, the diodes start to conduct, causing the fuse to blow. The Zener Barrier has a positive polarity, i. e. the anodes of the zener diodes are grounded.
This high power version has a smaller serial resistance and therefore provides higher voltage to the field device.
The Zener Barrier is for evaluation of signals from the hazardous area. The diodes of diode return prevent a current into the hazardous area, therefore the current assumption for intrinsic safety calculations is zero.
Depending on the application, increased or decreased intrinsic safety parameters apply for serial or parallel connection. For the detailed parameters refer to the Zener Barrier certificate. Application examples can be found in the system description of the Zener Barriers.
Technical data
Related Models:
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| KFA6-SR2-Ex2.W | NBN40-U1K-N0 |
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| KFD0-HMS-16 | NBVB15-U1.Z2 |
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| KFD2-SH-Ex1.T.OP | NJ5-18GM-N |
| KFD2-SL2-EX2.B | NJ8-18GK-N |
| KFD2-SR2-EX1.W | RD0-FB-EX4 |
| KFD2-SR2-Ex2.W | RD0-FB-EX4.COM |
| KFD2-STC5-1.2O | SC3,5-G-N0 |
| KFD2-STC5-Ex1 | SC3,5-G-N0-5M |
| KFD2-STC5-Ex1.H | SC3,5-G-N0-6M |
| KFD2-UT2-1 | SJ3,5-N |
| KFD2-VR4-EX1.26 | SJ3,5-S1N |
| KFU8-UFC-1.D | UPR-03 |
| KFU8-UFT | V15-G-2M |
| K-HM26-2M-261533 | Z 787 |
| NBB15-U1-E2 | Z787.H |
| NBB15-U1-Z2 | HIC2031 |
Company Introduction:
Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, Endress+Hauser, YOKOGAWA,MTL,Allen-Bradley, Pepperl+Fuchs,Rosemount, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, Honeywell, Siemens and etc. If you have any request, please do not hesitate to contact us.
FAQ of Achievers
Q:Are the Products Genuine OEM Units?
A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.
Q:How will you arrange shipment?
A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.
Q:What is the warranty of goods?
A: One-year Warranty.