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1794-OA8I Allen-Bradley
Original price
$435.60
-
Original price
$700.00
Original price
$435.60
$435.60
-
$700.00
Current price
$435.60
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Allen-Bradley 1794-OA8I is an isolated eight-point AC digital output module for the FLEX I/O, FLEX Ex, and FLEX XT platforms. It provides eight isolated, 120 VAC output channels within a modular I/O architecture to connect discrete AC loads. Commonly used in distributed control and machine-level output applications, it mounts on FLEX terminal bases and integrates into systems for load switching and signaling. Part number 1794-OA8I is suited for installations requiring channel-to-channel and field-to-backplane isolation.
Best Suited For
- Distributed AC load switching in FLEX I/O systems
- Field-level isolation requirements
- Machine-mounted discrete output control
- Modular expansion for medium-voltage actuators
Outputs
8 isolated points
Nominal output voltage
120 VAC
On-state current per channel
up to 500 mA
Operating temperature
-20…+55 °C
Technical Specifications
I/O & Electrical
Number of outputs
8 isolated outputs
Output voltage range
85 - 132 VAC (nominal 120 VAC)
On-state current, max per channel
500 mA @ 55 °C; 750 mA @ 35 °C; 1.0 A on 4 non-adjacent outputs, 500 mA on remaining 4 @ 30 °C
Module output current total
4.0 A (eight × 500 mA)
Off-state leakage current, max
2.25 mA
On-state voltage drop, max
1.0 V @ 0.5 A
Surge current
7 A for 40 ms (repeatable every 8 s)
Isolation voltage
120 V continuous, channel-to-channel & field-to-backplane; tested 1250 VAC 60 s / 2150 V DC 1 s
Communication & Power
FlexBus current
80 mA @ 5 V DC
Physical & Environmental
Dimensions (H×W×D)
46 × 94 × 53 mm (1.8 × 3.7 × 2.1 in)
Operating temperature
-20…+55 °C (-4…+131 °F)
Mounting
FLEX I/O terminal base (e.g., 1794-TBNF, TB2, TB3, TB3S)
IP rating
IP20 (open style DIN rail module)
Certifications
Certifications as of May 19, 2026; see product label for specifics.
