1794-OW8 - In Stock | Allen Bradley PLC Flex I/O 1794

1794-OW8

Rated 3.8 with 7 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply 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 firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply 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 firmware.


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1794-OW8

Revisions: Ser A 
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.
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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.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply 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 firmware.

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better business bureau
Revisions: Ser A 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1794-OW8.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 3.8 with 7 reviews

    Technical Specifications for 1794-OW8

ManufacturerRockwell Automation
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
EnclosureOpen-type
Keyswitch position9
Indicators:8 Yellow status indicators
Pilot Duty RatingR150, 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)
BrandAllen-Bradley
Part Number/Catalog No.1794-OW8
Minimum Contact Load100 μA @ 100 mV DC
Flexbus Current5V DC, 35 mA
Operating Shock:30 g
Product TypeFlex I/O Relay Output Module
Outputs8 Relay
Off-state Leakage Current1.0mA through Snubber Circuit
Relay Contact250 Volts AC
Initial Contact Resistance30 m
Bounce Time1.2 milliseconds
Switching Frequency1 operation/3 s (0.3Hz at rated load) max
Power Dissipation5.5 Watts
Thermal Dissipation18.8 BTU/hour at maximum
UPC10662468112298
UNSPSC32151602
ManufacturerRockwell Automation
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
EnclosureOpen-type
Keyswitch position9
Indicators:8 Yellow status indicators
Pilot Duty RatingR150, 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)
BrandAllen-Bradley
Part Number/Catalog No.1794-OW8
Minimum Contact Load100 μA @ 100 mV DC
Flexbus Current5V DC, 35 mA
Operating Shock:30 g
Product TypeFlex I/O Relay Output Module
Outputs8 Relay
Off-state Leakage Current1.0mA through Snubber Circuit
Relay Contact250 Volts AC
Initial Contact Resistance30 m
Bounce Time1.2 milliseconds
Switching Frequency1 operation/3 s (0.3Hz at rated load) max
Power Dissipation5.5 Watts
Thermal Dissipation18.8 BTU/hour at maximum
UPC10662468112298
UNSPSC32151602
s

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.

FAQ for 1794-OW8

How is the 1794-OW8 grounded?


The 1794-OW8 is grounded through the DIN rail down to the ground. For proper grounding use a zinc plated yellow-chromate steel DIN rail.

What is the power dissipation for the 1794-OW8?


The power dissipation for the 1794-OW8 is 5.5 Watts.

What kind of fusing is recommended for the 1794-OW8?Answer Specifically, 3.0 A, 240 Volt AC slow-blow fuses are recommended for the 1794-OW8.


Can this module be purchased with a warranty?


Yes, the 1794-OW8 comes with a free one-year warranty from DO Supply, Inc.

What is this module’s power dissipation?


The 1794-OW8 has a power dissipation around 5.5 Watts.

Where can I send the 1794-OW8 to be repaired?


DO Supply, Inc. offers a variety of repair services for the 1794-OW8.

How many output channels does the 1794-OW8 have?


The 1794-OW8 has Eight (8) output channels.

What is the output contact form of the 1794-OW8?


The 1794-OW8 has Form A, Normally Open output contacts.

What is the recommended fuse for use with the 1794-OW8?


The 1794-W8 is compatible with 3.0 A, 250V AC slow-blow fuses (Littelfuse pt. no. 239003).

Technical Description of 1794-OW8

The Allen-Bradley 1794-OW8 Flex I/O Relay Output Module has 8 Relay Outputs, a 1.0mA through Snubber Circuit Off-state Leakage Current, and a 100A at 100 mV DC Minimum Contact Load. It also operates with a 30 m? Initial Contact Resistance and a 1.2ms Bounce Time.

Repair Services for 1794-OW8

Type Lead Time Price Action
Repair Service 2-4 weeks $240cartAdd to Cart

Our highly skilled technicians can repair your 1794-OW8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1794-OW8

Please refer to the manual for more information about the 1794-OW8 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-OW8 Ser A
1794-OW8/A, Series A, Rev A Request Quote
Common misspellings:
  • l794-OW8
  • 179A-OW8
  • 1794-0W8
  • 1794-OWb
  • 1794OW8

Reviews for 1794-OW8

Internal Review

"The 1794-OW8 is a relay output module from the Flex I/O product family. This module comes with isolated output channels, allowing each channel to individually operate at 120 or 240 VAC operating voltages. This provides flexibility as the user does not need to purchase separate 120VAC or 240 VAC rated modules. " -DO Supply Tech

Dimensions For 1794-OW8

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1794-OW8

Resolutions For 1794-OW8

About

Technical Specifications for 1794-OW8

ManufacturerRockwell Automation
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
EnclosureOpen-type
Keyswitch position9
Indicators:8 Yellow status indicators
Pilot Duty RatingR150, 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)
BrandAllen-Bradley
Part Number/Catalog No.1794-OW8
Minimum Contact Load100 μA @ 100 mV DC
Flexbus Current5V DC, 35 mA
Operating Shock:30 g
Product TypeFlex I/O Relay Output Module
Outputs8 Relay
Off-state Leakage Current1.0mA through Snubber Circuit
Relay Contact250 Volts AC
Initial Contact Resistance30 m
Bounce Time1.2 milliseconds
Switching Frequency1 operation/3 s (0.3Hz at rated load) max
Power Dissipation5.5 Watts
Thermal Dissipation18.8 BTU/hour at maximum
UPC10662468112298
UNSPSC32151602
ManufacturerRockwell Automation
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
EnclosureOpen-type
Keyswitch position9
Indicators:8 Yellow status indicators
Pilot Duty RatingR150, 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)
BrandAllen-Bradley
Part Number/Catalog No.1794-OW8
Minimum Contact Load100 μA @ 100 mV DC
Flexbus Current5V DC, 35 mA
Operating Shock:30 g
Product TypeFlex I/O Relay Output Module
Outputs8 Relay
Off-state Leakage Current1.0mA through Snubber Circuit
Relay Contact250 Volts AC
Initial Contact Resistance30 m
Bounce Time1.2 milliseconds
Switching Frequency1 operation/3 s (0.3Hz at rated load) max
Power Dissipation5.5 Watts
Thermal Dissipation18.8 BTU/hour at maximum
UPC10662468112298
UNSPSC32151602

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.

FAQ for 1794-OW8

How is the 1794-OW8 grounded?


The 1794-OW8 is grounded through the DIN rail down to the ground. For proper grounding use a zinc plated yellow-chromate steel DIN rail.

What is the power dissipation for the 1794-OW8?


The power dissipation for the 1794-OW8 is 5.5 Watts.

What kind of fusing is recommended for the 1794-OW8?Answer Specifically, 3.0 A, 240 Volt AC slow-blow fuses are recommended for the 1794-OW8.


Can this module be purchased with a warranty?


Yes, the 1794-OW8 comes with a free one-year warranty from DO Supply, Inc.

What is this module’s power dissipation?


The 1794-OW8 has a power dissipation around 5.5 Watts.

Where can I send the 1794-OW8 to be repaired?


DO Supply, Inc. offers a variety of repair services for the 1794-OW8.

How many output channels does the 1794-OW8 have?


The 1794-OW8 has Eight (8) output channels.

What is the output contact form of the 1794-OW8?


The 1794-OW8 has Form A, Normally Open output contacts.

What is the recommended fuse for use with the 1794-OW8?


The 1794-W8 is compatible with 3.0 A, 250V AC slow-blow fuses (Littelfuse pt. no. 239003).

Technical Description of 1794-OW8

The Allen-Bradley 1794-OW8 Flex I/O Relay Output Module has 8 Relay Outputs, a 1.0mA through Snubber Circuit Off-state Leakage Current, and a 100A at 100 mV DC Minimum Contact Load. It also operates with a 30 m? Initial Contact Resistance and a 1.2ms Bounce Time.

Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $240cartAdd to Cart

Our highly skilled technicians can repair your 1794-OW8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks $240cartAdd to Cart

Our highly skilled technicians can repair your 1794-OW8. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1794-OW8 such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-OW8 Ser A
1794-OW8/A, Series A, Rev A Request Quote

Common misspellings:
  • l794-OW8
  • 179A-OW8
  • 1794-0W8
  • 1794-OWb
  • 1794OW8
PDF
Reviews

Reviews for 1794-OW8

Internal Review

"The 1794-OW8 is a relay output module from the Flex I/O product family. This module comes with isolated output channels, allowing each channel to individually operate at 120 or 240 VAC operating voltages. This provides flexibility as the user does not need to purchase separate 120VAC or 240 VAC rated modules. " -DO Supply Tech