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1781-Series of Slim input and output modules and solid-state relays provide compatibility with a variety of manufacturers’ miniature modules. Slim modules have a hold-down screw, and can be used in mounting boards where vibration and shock are not of concern.
Find products easier by using our Industry Model Numbers, found here.

Part Number Part TypeNominal Field VoltageNominal Logic VoltageIndustry ModelField Voltage RangeMax Input Current (mA)Drop out Current (mA) Action
1781-IA5S Input 120 5V IAC5 90-140 V 10 2.5 Add Quote
1781-IA5SE Input 24 5V 3.3-32 V 10 2.5 Add Quote
1781-IAXS Input 120 24V IAC24 90-140 V 10 2.5 Add Quote
1781-IAYS Input 120 15V IAC15 90-140 V 10 2.5 Add Quote
1781-IB5S Input 24 5V 3.3-32 V 32 1 Add Quote
1781-IBXS Input 24 24V 3.3-32 V 32 1 Add Quote
1781-IBYS Input 24 15V 3.3-32 V 32 1 Add Quote
1781-IM5S Input 240 5V IAC5A 180-280 V 8 1.5 Add Quote
1781-IMXS Input 240 24V IAC24A 180-280 V 8 1.5 Add Quote
1781-IMYS Input 240 15V IAC15A 180-280 V 8 1.5 Add Quote
1781-IN5S Input 24 5V IDC5 10-60 V 30 1 Add Quote
1781-INXS Input 24 24V IDC24 10-60 V 30 1 Add Quote
1781-INYS Input 24 15V IDC15 10-60 V 30 1 Add Quote
1781-IT5S Input 24 5V 3.3-32 V 32 1 Add Quote
1781-ITXS Input 24 24V 3.3-32 V 32 1 Add Quote
1781-ITYS Input 24 15V 3.3-32 V 32 1 Add Quote
1781-OA5S Output 120 5V OAC5 12-140 V 2 10 Add Quote
1781-OAXS Output 120 24V OAC24 12-140 V 2 10 Add Quote
1781-OAYS Output 120 15V OAC15 12-140 V 2 10 Add Quote
1781-OB5S Output 5V 5V ODC5 3-60 V 1 10 Add Quote
1781-OB5S11 Output 5V 5V 3-60 V 1 10 Add Quote
1781-OBXS Output 24 24V ODC24 3-60 V 1 11 Add Quote
1781-OBYS Output 24 15V ODC15 3-60 V 1 10 Add Quote
1781-OBYS11 Output 24 15V 3-60 V 1 10 Add Quote
1781-OC5S Output 100 5V ODC5A 5-200 V 2 10 Add Quote
1781-OCXS Output 100 24V ODC24A 5-200 V 2 11 Add Quote
1781-OCYS Output 100 15V ODC15A 5-200 V 2 10 Add Quote
1781-OF5S Output 5 5V 0-50 V Add Quote
1781-OFXS Output 24 24V 0-50 V Add Quote
1781-OFYS Output 15 15V 0-50 V Add Quote
1781-OG5S Output 5 5V 0-100 V Add Quote
1781-OGXS Output 24 24V 0-100 V Add Quote
1781-OGYS Output 15 15V 0-100 V Add Quote
1781-OL5S Output 240 5V 24-280 V 2 10 Add Quote
1781-OLXS Output 240 24V 24-280 V 2 10 Add Quote
1781-OLYS Output 240 15V 24-280 V 2 10 Add Quote
1781-OM5S Output 240 5V OAC5A 24-280 V 2 10 Add Quote
1781-OM5SC Output 240 5V OAC5A5 24-280 V 2 10 Add Quote
1781-OM5SR Output 240 5V OAC5AR 24-280 V 2 10 Add Quote
1781-OMXS Output 240 24V OAC24A 24-280 V 2 10 Add Quote
1781-OMXSR Output 240 24V 24-280 V 2 10 Add Quote
1781-OMYS Output 240 15V OAC15A 24-280 V 2 10 Add Quote
1781-OMYSC Output 240 15V 24-280 V 2 10 Add Quote
1781-OP5S Output 480 5V 24-480 V 2 10 Add Quote
1781-OPXS Output 480 24V 24-480 V 2 10 Add Quote
1781-OPYS Output 480 15V 24-480 V 2 10 Add Quote
1781-RC5S Normally Closed Relay 5 5V 0-125 V 1 1.3 Add Quote
1781-RCXS Normally Closed Relay 5 24V 0-125 V 3 2.2 Add Quote
1781-RCYS Normally Closed Relay 5 15V 0-125 V 2 3 Add Quote
1781-RO5S Relay 5 5V ODC5R 0-100 V 1 1.3 Add Quote
1781-ROXS Normally Open Relay 5 24V ODC24R 0-100 V 3 2.2 Add Quote
1781-ROYS Normally Open Relay 5 15V 0-100 V 2 3 Add Quote
1781-SWIN5S Input 24 5V 10-60 V 30 1 Add Quote
1781-SWOA5S Output 120 5V 12-140 V 2 10 Add Quote
1781-SWOAXS Output 120 24V 12-140 V 2 10 Add Quote
1781-SWOB5S Output 24 5V 3-60 V 1 10 Add Quote
1781-WC5S-XXX Normally Closed Watchdog Timer Module 5 5V 0-125 V 0 (4A transient) Add Quote
1781-WO5S-XXX Normally Open Watchdog Timer Module 5 5V 0-100 V 0 (4A transient) Add Quote

Part Type