danner123
Member level 3
I understand the following for Relays:
• Maximum Switching Current - The maximum current which can safely be switched by the contacts.
• Maximum Carrying Current - The maximum current which after closing or prior to opening, the contacts can safely pass without being subject to temperature rise in excess of their design limit, or the design limit of other temperature sensitive components in the relay (coil, springs, insulation, etc.). This value is usually in excess of the maximum switching current.
I am looking at a relay that has maximum switching current = 250mA and maximum carrying current = 1.5A.
If the relay can carry current = 1.5A, why can it only switch current = 250mA? I would assume it could switch 1.5A
Thanks!
• Maximum Switching Current - The maximum current which can safely be switched by the contacts.
• Maximum Carrying Current - The maximum current which after closing or prior to opening, the contacts can safely pass without being subject to temperature rise in excess of their design limit, or the design limit of other temperature sensitive components in the relay (coil, springs, insulation, etc.). This value is usually in excess of the maximum switching current.
I am looking at a relay that has maximum switching current = 250mA and maximum carrying current = 1.5A.
If the relay can carry current = 1.5A, why can it only switch current = 250mA? I would assume it could switch 1.5A
Thanks!