1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts
1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts
Part #: 1794-OW8 Manufactured by: Allen-Bradley

1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts

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Product Overview
The Allen-Bradley 1794-OW8 Flex I/O Relay Output Module has 8 Relay Outputs, a 1.0mA through Snubber Circuit Off-state Lea...  Read more
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warranty
Product comes with IQElectro 2-Year Warranty
Warranty for item #: 1794-OW8
IQElectro offers a complimentary 2-year warranty on all our products. This ensures that every purchase you make from IQElectro is a reliable and trustworthy investment for the future of your company. Warranty Terms
IQElectro is NOT an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.
1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts
    1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts
1794-OW8 | Allen-Bradley Flex I/O Output Module 8 Isolated N.O. Relay Contacts
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Product Description P/N: 1794-OW8

Description / Specifications

Description 

The Allen-Bradley 1794-OW8 is a Flex IO relay output module. This module features Eight (8) Form A or Normally Open (N.O.) isolated electromechanical relays. isolated output channels with output voltage range of 74-132VAC. The relay contacts are rated 250V AC, 2 A, 50/60Hz, Resistive; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive. This module is mounted to a 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794-TBNF terminal bases. It is compatible with any 1794 Flex IO adapters to implement distributed I/O application.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-OW8
Vibration 5g @ 10 to 500 Hz
Operating Temperature 0 to 55 C (32 to 131 F)
Wire Size Determined by installed terminal base
Mounting DIN Rail
Enclosure Open-type
Keyswitch position 9
Indicators 8 Yellow status indicators
Pilot Duty Rating R150, 5...30V DC, 28V A not to exceed 1 A below 28V DC
Relay Contact rating 250V AC, 2 A, 50/60Hz, Resistive; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive;
Supply Voltage 24V DC, 125 mA
Terminal base 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794- TBNF
Number of Outputs Eight, isolated
Product Description Flex IO relay Output Module
Storage Temperature -40 to 85 C (-40 to 185 F)
Minimum Contact Load 100 μA @ 100 mV DC
Flexbus Current 5V DC, 35 mA
Operating Shock 30 g
Product Type Flex I/O Relay Output Module
Outputs 8 Relay
Off-state Leakage Current 1.0mA through Snubber Circuit
Relay Contact 250 Volts AC
Initial Contact Resistance 30 m
Bounce Time 1.2 milliseconds
Switching Frequency 1 operation/3 s (0.3Hz at rated load) max
Power Dissipation 5.5 Watts
Thermal Dissipation 18.8 BTU/hour at maximum

  

 

Information About 1794-OW8

The Allen-Bradley 1794-OW8 is a Relay output module that is part of the Flex I/O product family. This module primarily features Eight (8) isolated Normally Open (N.O.) electromechanical relay that are rated 250V AC, 2 A, 50/60Hz for resistive load; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive;

The 1794-OW8 is used with 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794-TBNF terminal base units. If 1794-TBNF is used, use a 3.0 Ampere, 250VAC slow-blow fuse or the Allen-Bradley recommended fuse Littelfuse with part. number 239003. This module has a off-state leakage current of 1.0 mA through snubber circuit with minimum contact load rating of 100 μA @ 100 mV DC. It has a pilot duty rating of R150, 5...30V DC, 28V A not to exceed 1 A below 28V DC.

The 1794-OW8 is compatible for use any any Flex I/O communication adapters as well as with FlexBus controllers. This module has a current draw of 5V DC, 35 mA with supply voltage rating of 24V DC, 125 mA. The relay output channels has a maximum of signal delay 10 ms for both signal transitions while the initial contact resistance is 30 mΩ, switching frequency of 1 operation every 3 s or 0.3Hz at rated load and contact mean bounce time of 1.2 ms. Additionally, each output contact has an expected contact life of 100,000 operations, min @ rated loads.

The 1794-OW8 is installed with Eight (8) yellow status indicators, One for each channel and has a keyswitch position of 9 when mounting to the terminal base.

Use only +24 Volts DC power for the 1794-OW8’s power terminals because variations in relay switching time of the outputs may cause one of the relays to momentarily switch the total load current. The entire module measures 1.8 x 3.7 x 2.1 inches. It is compatible with several terminal base units, namely the 1794-TB3, 1794-TB2, 1794-TBN, 1794-TB3S, 1794-TB3K, 1794-TBNF, 1794-TBNKF, and the 1794-TB3SK. It also has a mechanical life of 100,000 operations at rated loads. The resistive relay output current ratings of the 1794-OW8 are 2 Amps at 5 to 30 Volts DC, 0.22 Amps at 125 Volts DC, and 2 Amps for 125 Volts DC and 250 Volts DC. The module also has a continuous isolation voltage of 250 Volts for relay to another relay, to the backplane, and to the power, and 50 Volts for power to the backplane. The external DC supply voltage range of this module is 19.2 to 31.2 Volts DC and it includes the 5% AC ripple and a nominal external DC supply current of 125 mA. It has a maximum off-state leakage current of 1 mA at 240 Volts AC through a snubber. The 1794-OW8’s initial contact resistance is 30 M Ω and its minimum contact load is 100 µA at 100 mV DC. It also has a maximum power dissipation of 5.5 Watts and a maximum thermal dissipation of 18.8 BTU/hour, both at 31.2 Volts DC. The maximum output delay time for both the OFF to ON and the ON to OFF states are 10 milliseconds.


Manufacturer information

Allen‑Bradley components, integrated control and information solutions are built for demanding industrial applications. We integrate control and information across the enterprise to make you as productive as possible.

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IQElectro 2 Year Warranty

IQElectro offers a 2-Year Warranty on all our products. This complimentary two-year warranty ensures that every purchase from IQElectro is a secure investment in the future of your company.
Warranty Terms
warningIQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses. Some hardware products may contain software and firmware and may not be legally operated without first obtaining an appropriate license from the manufacturer. IQElectro makes no representation as to whether a product will or will not have software or firmware and, if it does, whether the software or firmware is the revision level that you need for your application. IQElectro also makes no representations as to your ability or right to download or otherwise obtain software or firmware for the product from the Original Manufacturer, its distributors, or any other source. IQElectro also makes no representations as to your right to install any such software or firmware on the product. IQElectro will not obtain or supply software or firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing software or firmware. Customer acknowledges and agrees that IQElectro DOES NOT provide any software, firmware, operating system, or right-to-use licenses with the products it sells. Customers understand and agree that proper software (firmware) licensing, maintenance, and upgrades are subject to the applicable manufacturer's Licensing Agreement or similar document. Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1794-OW8 is a Flex IO relay output module. This module features Eight (8) Form A or Normally Open (N.O.) isolated electromechanical relays. isolated output channels with output voltage range of 74-132VAC. The relay contacts are rated 250V AC, 2 A, 50/60Hz, Resistive; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive. This module is mounted to a 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794-TBNF terminal bases. It is compatible with any 1794 Flex IO adapters to implement distributed I/O application.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-OW8
Vibration 5g @ 10 to 500 Hz
Operating Temperature 0 to 55 C (32 to 131 F)
Wire Size Determined by installed terminal base
Mounting DIN Rail
Enclosure Open-type
Keyswitch position 9
Indicators 8 Yellow status indicators
Pilot Duty Rating R150, 5...30V DC, 28V A not to exceed 1 A below 28V DC
Relay Contact rating 250V AC, 2 A, 50/60Hz, Resistive; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive;
Supply Voltage 24V DC, 125 mA
Terminal base 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794- TBNF
Number of Outputs Eight, isolated
Product Description Flex IO relay Output Module
Storage Temperature -40 to 85 C (-40 to 185 F)
Minimum Contact Load 100 μA @ 100 mV DC
Flexbus Current 5V DC, 35 mA
Operating Shock 30 g
Product Type Flex I/O Relay Output Module
Outputs 8 Relay
Off-state Leakage Current 1.0mA through Snubber Circuit
Relay Contact 250 Volts AC
Initial Contact Resistance 30 m
Bounce Time 1.2 milliseconds
Switching Frequency 1 operation/3 s (0.3Hz at rated load) max
Power Dissipation 5.5 Watts
Thermal Dissipation 18.8 BTU/hour at maximum

  

 

Information About 1794-OW8

The Allen-Bradley 1794-OW8 is a Relay output module that is part of the Flex I/O product family. This module primarily features Eight (8) isolated Normally Open (N.O.) electromechanical relay that are rated 250V AC, 2 A, 50/60Hz for resistive load; 120/240V AC, 50/60Hz,1800V A Make, 180V A Break; 5…30V DC, 2 A, Resistive;

The 1794-OW8 is used with 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN and 1794-TBNF terminal base units. If 1794-TBNF is used, use a 3.0 Ampere, 250VAC slow-blow fuse or the Allen-Bradley recommended fuse Littelfuse with part. number 239003. This module has a off-state leakage current of 1.0 mA through snubber circuit with minimum contact load rating of 100 μA @ 100 mV DC. It has a pilot duty rating of R150, 5...30V DC, 28V A not to exceed 1 A below 28V DC.

The 1794-OW8 is compatible for use any any Flex I/O communication adapters as well as with FlexBus controllers. This module has a current draw of 5V DC, 35 mA with supply voltage rating of 24V DC, 125 mA. The relay output channels has a maximum of signal delay 10 ms for both signal transitions while the initial contact resistance is 30 mΩ, switching frequency of 1 operation every 3 s or 0.3Hz at rated load and contact mean bounce time of 1.2 ms. Additionally, each output contact has an expected contact life of 100,000 operations, min @ rated loads.

The 1794-OW8 is installed with Eight (8) yellow status indicators, One for each channel and has a keyswitch position of 9 when mounting to the terminal base.

Use only +24 Volts DC power for the 1794-OW8’s power terminals because variations in relay switching time of the outputs may cause one of the relays to momentarily switch the total load current. The entire module measures 1.8 x 3.7 x 2.1 inches. It is compatible with several terminal base units, namely the 1794-TB3, 1794-TB2, 1794-TBN, 1794-TB3S, 1794-TB3K, 1794-TBNF, 1794-TBNKF, and the 1794-TB3SK. It also has a mechanical life of 100,000 operations at rated loads. The resistive relay output current ratings of the 1794-OW8 are 2 Amps at 5 to 30 Volts DC, 0.22 Amps at 125 Volts DC, and 2 Amps for 125 Volts DC and 250 Volts DC. The module also has a continuous isolation voltage of 250 Volts for relay to another relay, to the backplane, and to the power, and 50 Volts for power to the backplane. The external DC supply voltage range of this module is 19.2 to 31.2 Volts DC and it includes the 5% AC ripple and a nominal external DC supply current of 125 mA. It has a maximum off-state leakage current of 1 mA at 240 Volts AC through a snubber. The 1794-OW8’s initial contact resistance is 30 M Ω and its minimum contact load is 100 µA at 100 mV DC. It also has a maximum power dissipation of 5.5 Watts and a maximum thermal dissipation of 18.8 BTU/hour, both at 31.2 Volts DC. The maximum output delay time for both the OFF to ON and the ON to OFF states are 10 milliseconds.


Manufacturer information

Allen‑Bradley components, integrated control and information solutions are built for demanding industrial applications. We integrate control and information across the enterprise to make you as productive as possible.

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