STANDARDIZED RELAY — Description
EL-3component photoDescription
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
NOTE
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays. Refer to fig1 for the truth-table-style behaviour with SW1 OFF vs ON.
TYPE OF STANDARDIZED RELAYS
Standardized relay type codes
1M
Meaning1 Make (single normal-open contact)
2M
Meaning2 Make (two normal-open contacts)
1T
Meaning1 Transfer (single changeover contact)
1M-1B
Meaning1 Make 1 Break (one make + one break contact)