1746-IB8 Ser A
1746-IB8/A, Series A, Rev A
The 1746-IB8 digital input module is an SLC 500 series I/O module which has been manufactured by Allen-Bradley/Rockwell Automation. It is approved for use in all non-hazardous industrial locations and in hazardous industrial locations that have Class 1, Division 2, Groups A, B, C, or D classifications. The 1746-IB8 digital input module has 8 sinking input channels rated at 24 Volts DC. It dissipates up to 1.9 Watts of energy as heat during normal operation. The 1746-IB8 SLC 500 digital input module has a nominal input current rating of 8 milliamps at 24 Volts DC.
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About 1746-IB8 Ser A
The Allen-Bradley 1746-IB8 Series A module is a digital DC input module that is approved for safe use in North American Hazardous Locations. This makes it a flexible and adaptable input module that is suitable for many different applications in different industrial environments. The 1746-IB8 Series A module is safe to use in all Class I, Division 2, Groups A, B, C, and D hazardous and non-hazardous industrial locations, but not in any other kind of industrial locations. Note that making any unauthorized modifications to this digital DC input module may render it unsafe and unsuitable for use in these industrial locations, and modifications may cause the module to operate erratically or even cause damage or injury.
The Allen-Bradley 1746-IB8 Series A digital DC input module comes with 8 inputs and it is made to be used in nearly all general-purpose DC input applications. It is an Allen-Bradley SLC 500 series digital DC input module. This I/O module has a step response time of 100 milliseconds in and of 2.5 milliseconds out. The 1746-IB8 Series A module also has an off-state current rating of 1 milliamp. When this digital DC input module dissipates heat, it dissipates 0.2 Watts of heat per point, 0.25 Watts of heat minimum, and 1.9 Watts of heat in total. This input module consumes 0.5 Amps of current at a voltage rating of 5 Volts DC, but it does not consume any amount of current at a voltage rating of 24 Volts DC.
Technical specifications for 1746-IB8
| Manufacturer | Rockwell Automation |
|---|---|
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1746-IB8 |
| Series | SLC 500 |
| Module Type | Digital DC Input Module |
| Voltage Range | 10-30 Volts DC Sink |
| Inputs | 8 |
| Backplane Current (5 Volts DC) | 50 milliamps |
| Signal delay | 8 milliseconds |
| Off State Current | 1 milliamps |
| Applications | General Purpose DC Inputs |
| I/O Connection | 1746-HT and 1746-HCA |
| Step Response | 100 milliseconds in, 2.5 milliseconds out |
| UPC | 10662073521256 |
The 1746-IB8 SLC 500 Digital DC Input Module by Allen-Bradley is a DC input module in the SLC 500 I/O module series with eight 24V DC current sinking inputs. The 1746-IB8 has an operational voltage range between 10 and 30V DC with its nominal voltage at 24V DC and it has a backplane current of 50mA at 5V DC and of 0.0mA at 24V DC. The maximum signal delay time on each input point of the module is about 8ms for ON mode and 8ms for OFF mode, and the maximum OFF state voltage in the circuit is 5.0V DC. The 1746-IB8 has a maximum OFF-state current of 1mA, and when operational, its nominal input current is 8mA at 24V DC. The 1746-IB8 module has a maximum of 0.27W power dissipation on each output point and the total heat dissipation of the module is 1.3W with 4.4 BTU per hour of thermal dissipation. It has a Dielectric withstand of 1500V AC and an isolation between the communication circuits tested at 500V and between backplane-and-inputs at 1500V AC. The 1746-IB8 module has an operating temperature range between 0 and 60 °C (32 and 140 °F) at 5-95% non-condensing humidity. It has an operational vibration of 2.5G at 57-500Hz and a shock rating of 30G. The 1746-IB8 is UL and CE-certified and has a NEMA standard ICS 2-230-tested Noise Immunity.