Safety Relay, 2 channels, and 1NF Contacts 2NA, Reset Auto / Manual Power 24VDC / ac, 45ms Response Time, Maximum Switching Voltage 250Vac Output / dc Maximum Current 6A Operating Temperature -20 ° C .. . 55 ° C, used in doors and Emergency safety category 4 / EN 954-1 Type PSR-SCP- 24UC / ESA4 / 2X1 / 1X2, Phoenix Contact.