SIL3 relay consultation
Thread Content
Our company recently installed a set of SIS systems, and the system requirements specify that the safety barriers and relays must meet SIL3 standards. I would like to ask the experts here: what are the relays that meet SIL3 requirements? Have you used any relays with SIL3 certification in the SIS systems you work with? What is the approximate price of each SIL3 relay?
So, do the instruments at your site meet SIL 3 standards? If all SIS safety instrument functions are to be implemented at SIL 3 level, the cost involved is extremely high; very few companies in China have the financial resources to do so, not even Sinopec and CNPC. There are quite a few relays that achieve the SIL3 level; manufacturers include HIMA, PILZ, wieland, phoenix, and omron
This post was last edited by wanli on 2016-4-20 at 16:50. It costs over a thousand and requires SIL3 certification.