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  • 1794-OM8
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1794-OM8

Allen-Bradley 1794-OM8 | Flex I/O Digital Output Module | 240VAC

In stock (26 units), ready to be shipped

  • Manufacturer: Allen-Bradley

  • Product No.: 1794-OM8

  • Product Type: Digital Output Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 300g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Product Overview

The Allen-Bradley 1794-OM8 is a Flex I/O digital AC output module with 8 nonisolated outputs. It operates at 240V AC nominal output voltage with a 4.0A output current rating. Weighing approximately 0.3 kg, the module fits inside the terminal bus, connecting field devices to the I/O bus. Modules can be inserted or removed under power since no direct wiring attaches to the I/O module, saving commissioning time and eliminating system restart inefficiency.

Technical Specifications

Parameter Value
Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number 1794-OM8
Product Type Flex I/O Digital Output Module
Outputs 8 Nonisolated
Output Voltage Nominal 240V AC (220V AC nominal on-state)
On-State Voltage Range 159 to 264V AC
Output Current Rating 4.0 A
On-State Current per Output 500 mA maximum, 5 mA minimum at 55°C
On-State Voltage Drop 1.5V AC @ 0.5A maximum
Off-State Leakage 2.5 mA maximum
Isolation Voltage 250V Continuous
Flexbus Current 60 mA @ 5V DC
Power Dissipation 5W @ 0.5A maximum
Thermal Dissipation 17.1 BTU/hr @ 0.5A maximum
Weight Approx. 0.3 kg
Compatible Terminal Bases 1794-TBNF, 1794-TBN
Operating Temperature 0 to 55°C (32 to 131°F)
Relative Humidity 5 to 95% non-condensing
Mounting DIN rail snap-on

Installation Guide

Snap the module onto a DIN rail for mounting. Use the 1794-TBNF or 1794-TBN terminal base unit for field wiring connections. The module supports insertion and removal under power since no direct wiring attaches to the I/O module itself. Verify output loads do not exceed 500 mA per output or 4A per module. Confirm output voltage remains within the 159-264V AC on-state range. Maintain 0-55°C operating temperature and 5-95% non-condensing humidity.

Engineering Advantages

The 1794-OM8 supports hot-swap removal and insertion, eliminating system restart downtime during maintenance. Eight nonisolated outputs in a single module reduce panel space requirements. Multiple communication options (ControlNet, DeviceNet, EtherNet/IP, Universal Remote I/O) enable flexible network integration. The 250V continuous isolation rating protects the backplane. XT versions are available for extreme environment operation, reducing panel and maintenance costs.

Technical FAQs

Q1: How many outputs does the 1794-OM8 provide?
A1: This module includes 8 nonisolated AC outputs with 240V AC nominal voltage and 4.0A module current rating.

Q2: Can the module be removed while power is on?
A2: Yes, modules can be inserted or removed under power since the I/O module has no direct wiring, saving commissioning time.

Q3: What terminal base units are compatible?
A3: The 1794-OM8 works with the 1794-TBNF and 1794-TBN terminal base units for field device connections.

Product Resources

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🏷️ Tags: Digital Output Module
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Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

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