PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-OW8 is an eight-channel relay output module for the FLEX I/O platform. This module provides eight normally-open isolated electromechanical relay contacts. Each output supports switching loads up to 250 Volts AC. It operates from a nominal supply voltage of 24V DC. The unit draws 35 mA of current from the 5V DC FLEXbus backplane.
The module features an average contact bounce time of 1.2 milliseconds. Maximum signal transition delay is 10 milliseconds for both turn-on and turn-off events. Maximum switching frequency is rated at 0.3 Hz under full load conditions. Eight yellow status indicators display the operational state of individual channels. The module utilizes an open-style enclosure with terminal base keyswitch set to Position 9. Total power dissipation is 5.5 Watts with a thermal output of 18.8 BTU per hour.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Average Bounce Time | 1.2 ms |
|---|
| Enclosure | Open-Style |
|---|
| FLEXbus Current | 5V DC and 35 mA |
|---|
| GTIN | 10662468112298 |
|---|
| Keyswitch Position | Position 9 |
|---|
| Maximum Output Signal Delay | 10 ms for transitions from on to off and off to on |
|---|
| Nominal Supply Voltage | 24V DC |
|---|
| Number of Outputs | 8 Outputs |
|---|
| Output Relay Type | Normally-Open Isolated Electromechanical Relays |
|---|
| Power Dissipation | 5.5 Watts |
|---|
| Product Line | Flex I/O 1794 |
|---|
| Status Indicators | 8 yellow indicator lights |
|---|
| Thermal Dissipation | 18.8 BTU per Hour |
|---|
| UPC | 662468112291 |
|---|
| Weight | 0.56 lbs (0.26 kg) |
|---|
TECHNICAL INFORMATION
Features
- Eight isolated normally-open electromechanical relay contact channels.
- Individual yellow status indicators for all eight output channels.
- Terminal base alignment configured for keyswitch Position 9.
- Low backplane power draw of 35 mA at 5V DC.
- Maximum output signal transition delay of 10 milliseconds.
TECHNICAL INFORMATION
Installation Guidelines
- Set the terminal base keyswitch to Position 9 before module insertion.
- Install the unit into an approved FLEX I/O terminal base.
- Ensure the backplane bus connection provides 5V DC power.
- Maintain adequate ventilation to manage 18.8 BTU per hour thermal dissipation.
TECHNICAL RESOURCES
Documentation
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the keyswitch position for the Allen-Bradley 1794-OW8?
The terminal base keyswitch must be set to Position 9 for the 1794-OW8 module.
What type of outputs does the 1794-OW8 relay module provide?
It provides eight isolated, normally-open electromechanical relay contact outputs.
What is the backplane current requirement for the 1794-OW8?
The module requires 35 mA of current from the 5V DC FLEXbus backplane.
What is the expected electrical lifespan of the 1794-OW8 relay contacts?
The relay contacts have an expected lifespan of 100,000 operations under rated load.
