Allen-Bradley 1794-OW8/A Digital Relay Output Module
$123.00
$320.00
Description
Allen-Bradley 1794-OW8/A Digital Relay Output Module
The Allen-Bradley 1794-OW8/A, also cataloged as the 1794-OW8 Digital Relay Output Module, operates as a dedicated hardware component for discrete load switching within the Allen-Bradley FLEX I/O system. The module provides eight isolated Form A relay contacts for PLC-controlled AC and DC field device actuation.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-OW8 / Series A |
| Brand | Allen-Bradley |
| Origin | Rockwell Automation FLEX I/O product family |
| Weight | 0.2 lbs |
| Power Consumption | 5.5 W maximum |
| Module Type | Digital Relay Output Module |
| Number of Outputs | 8 normally open (Form A) relay channels |
| Operating Voltage Range | 5...264 V AC / 5...125 V DC |
| Contact Rating | 2.0 A per channel continuous |
| Total Current Rating | 14.4 A continuous across all channels |
| FlexBus Current Demand | 80 mA @ 5 V DC |
| Isolation Voltage | 250 V AC continuous channel-to-channel and channel-to-bus |
| Contact Response Time | <= 10 ms ON to OFF and OFF to ON |
| Status Indicators | 8 yellow output channel LEDs |
EtherNet/IP and FLEX I/O Backplane Integration
The 1794-OW8 interfaces with the FLEX I/O platform through the terminal base assembly and FlexBus communication structure. The module receives output commands from the controller through the I/O adapter network and transfers the logic state to individual electromechanical relay contacts.
The FLEX I/O architecture supports I/O density scaling through modular terminal base installation. The 1794-OW8 allows field wiring retention during module replacement when compatible terminal base hardware is used. The module uses firmware flash compatibility defined by the FLEX I/O platform for controller and adapter communication matching.
Frequently Asked Questions
Q: Can the 1794-OW8 switch mixed AC and DC voltage sources on different channels?
A: Yes. Each relay output channel is individually isolated, allowing separate AC or DC voltage sources to be controlled through different Form A contact outputs within the module ratings.
Q: Does the 1794-OW8 require field wiring removal during replacement?
A: When installed on a compatible FLEX I/O terminal base unit, the module design allows removal and replacement without disconnecting field wiring.
Q: What is the FlexBus current requirement of the 1794-OW8 module?
A: The module requires 80 mA at 5 V DC from the FlexBus interface.
Field Installation Guidelines
- Install the 1794-OW8 on the specified FLEX I/O terminal base assembly before applying field power.
- Verify relay contact wiring corresponds to the required normally open (Form A) switching function.
- Maintain separation between AC power wiring, DC control wiring, and low-level signal wiring to reduce electrical interference.
- Connect cable shields according to the system grounding design and avoid parallel routing with high-current conductors.
- Confirm field load current does not exceed the relay contact rating for each individual output channel.
- Verify controller communication, FlexBus connection, and module status indicators before placing the output channels into service.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
Featured
Complementary products
Express Delivery
Fast shipping for your urgent needs.
Large Inventory
Extensive stock ensures quick availability.
Premium Quality
Genuine, high-grade PLC & DCS components.
24/7 Customer Support
Reliable service for clients worldwide.