What is the difference between a safety relay and a relay?
safety relay What is the difference between a  safety relay and a relay? 2021-05-07 What is the difference between a  safety relay and a relay? 466

1) Bigger shape: The appearance size of the safety relay is different from the general relay, and the safety relay is lager.


2) Module not component: The safety relay is a module, not an electronic component like general relay.


3) Own color: Safety relay usually use yellow or red as the main color


4) More safer: Due to the difference in design principles: ordinary relays cannot achieve high diagnostic coverage (DC), and can only be used in lower safety level machinery industries such as Cat.B/1, process control industry SIL1, Therefore, it can be considered that ordinary relays are not safe enough. Through the requirements of relays and the auxiliary design of logic circuits, Anji has a high diagnostic coverage rate, even some can reach 99.9%.


5) Forcibly guide contact: Safety relay has forcibly guide contact which can ensure safety in the event of contact welding phenomenon.


6) Detect the contact welding: Safety relay has detect the opposite contact, for example a contact occurred the weld, detect the b contact condition.


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