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SKU:1794-OA8
Allen-Bradley 1794-OA8 Flex I/O AC Output Module
Manufacturer: Allen-Bradley
Product No.: 1794-OA8
Product Type: AC Output Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 150g
Shipping port: Xiamen
Warranty: 12 months
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Beschrijving
Allen-Bradley 1794-OA8 Flex I/O AC Digital Output Module
Allen-Bradley 1794-OA8 | Flex I/O AC digital output module with 8 non-isolated output channels. Operates at 120V AC nominal voltage with 4.0 A output current rating. Designed for all non-hazardous industrial environments and Class 1, Division 2 areas. Weight: approximately 0.15 kg (0.33 lbs).
Key Features
8 non-isolated outputs in one group. 120V AC nominal output voltage, 85-132V AC range. 4.0 A output current rating. Minimum on-state current 5 mA per output. Maximum on-state voltage drop 1.0V at 0.5 A. Maximum off-state leakage 2.25 mA. 120V continuous isolation voltage. 80 mA Flexbus current at 5V DC. Surge current 7 A for 40 ms, repeatable every 8 seconds. Output signal delay max 1/2 cycle. Diagnostics for field devices, wiring, and power supply. Lightweight at 0.15 kg (0.33 lbs).
Technical Specifications
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1794-OA8 |
| Product Type | Flex I/O Digital Output Module |
| Outputs | 8 (Non-isolated) |
| Output Voltage (Nominal) | 120V AC |
| Output Voltage Range | 85-132V AC |
| Output Current Rating | 4.0 A |
| On-State Current (Min) | 5 mA per output |
| On-State Voltage Drop | 1.0V max @ 0.5 A |
| Off-State Leakage Current | 2.25 mA max |
| Isolation Voltage | 120V continuous |
| Flexbus Current | 80 mA @ 5V DC |
| Surge Current | 7 A for 40 ms, repeatable every 8 s |
| Signal Delay (ON/OFF) | Max 1/2 cycle |
| Power Dissipation | 4.1 W @ 0.5 A; 6.3 W @ 0.75 A and 1 A |
| Thermal Dissipation | 14.0 BTU/hr @ 0.5 A; 21.2 BTU/hr @ 0.75 A; 21.4 BTU/hr @ 1 A |
| Weight | Approx. 0.15 kg (0.33 lbs) |
| UPC | 10612598137845 |
Current Derating by Temperature
| 55°C | 500 mA per output |
| 35°C | 750 mA per output |
| 30°C | 500 mA on 4 outputs; 1 A on 4 non-adjacent outputs |
Compatible Terminal Base Units
1794-TBNK, 1794-TBKD, 1794-TB3K, 1794-TBNFK, 1794-TB3SK, 1794-TBNF, 1794-TB3, 1794-TB2, 1794-TB3S, and 1794-TBN. Auxiliary terminal strips are required when using the 1794-TBN base unit.
Installation Notes
Install directly on compatible Flex I/O terminal base units. Use auxiliary terminal strips when mounting on the 1794-TBN base. Observe current derating based on ambient temperature: 500 mA per output at 55°C, 750 mA at 35°C. Verify off-state leakage does not affect connected loads. Ensure proper grounding per Allen-Bradley wiring guidelines. Suitable for non-hazardous and Class 1 Division 2 environments.
Engineering Advantages
Integrated diagnostics identify faults in field devices, wiring, and power supply, reducing commissioning and troubleshooting time. 8 outputs in a single Flex I/O module maximize channel density. High 4.0 A module rating handles demanding AC loads directly. Surge current capability of 7 A supports inductive load switching. Wide 85-132V AC range accommodates supply variations. Modular Flex I/O design enables flexible system expansion.
FAQs
Q1: How many outputs does this module provide?
A1: 8 non-isolated AC outputs in a single group.
Q2: What is the output voltage range?
A2: 85-132V AC, with a nominal rating of 120V AC.
Q3: What is the current rating at different temperatures?
A3: 500 mA per output at 55°C, 750 mA per output at 35°C, and 1 A on 4 non-adjacent outputs at 30°C.
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