The Allen-Bradley 1746-OA8 is a reliable and efficient AC output module designed specifically for the Allen-Bradley SLC 500 modular hardware platform. This general-purpose solid-state module features 8 independent output channels operating within a 120/240 Volt AC range. Built to withstand demanding industrial environments, it provides robust switching capabilities for various AC-driven actuators, pilot lights, and motor starters within automated control systems.
Engineered for high density and operational dependability, the 1746-OA8 incorporates integrated front-panel LED status indicators for quick visual confirmation of individual I/O point states. The module utilizes durable terminals equipped with self-lifting pressure plates capable of securely accepting up to two 14 AWG wires per terminal, streamlining panel wiring and installation maintenance.
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Catalog Number / SKU | 1746-OA8 |
| Product Type | AC Output Module |
| Platform | SLC 500 |
| Voltage Category | 120/240 Volt AC |
| Operating Voltage Range | 85 to 265 Volt AC, 47 to 63 Hertz |
| Number of Outputs | 8 outputs |
| Backplane Current Consumption | 185 mA at 5 Volt DC; 0 mA at 24 Volt DC |
| Continuous Current Per Point | 1.0 A at 30 degC (86 degF); 0.5 A at 60 degC (140 degF) |
| Continuous Current Per Module | 8.0 A at 30 degC (86 degF); 4.0 A at 60 degC (140 degF) |
| Maximum On-State Voltage Drop | 1.5 Volt at 1.0 Amp |
| Maximum Off-State Leakage Current | 2 mA |
| Minimum Load Current | 10 mA |
| Surge Current Per Point | 10 A for 25 ms (repeatability once every 1 second) |
| Signal Delay | 1 ms ON / 11 ms OFF (resistive load) |
| Country of Origin | United States |
The module features a removable terminal block (RTB) located on the front face, allowing for easy wiring maintenance without disturbing field connections. The terminal block uses self-lifting pressure plates designed to accommodate up to two 14 AWG (2 mm squared) wires per screw terminal. Front-facing LED status indicators display the active state of each individual output point to assist with diagnostics and troubleshooting.
Ensure all power to the SLC 500 chassis and associated backplane is completely disconnected before inserting or removing the 1746-OA8 module. Mount the module into any available I/O slot of an SLC 500 chassis. Secure the module using the top and bottom retaining screws. To mitigate the effects of leakage current with solid-state outputs, apply an appropriate loading resistor in parallel with the load if necessary (e.g., a 15 kohm, 2W resistor for 120 Volt AC operation or a 15 kohm, 5W resistor for 240 Volt AC operation).
Global Express Shipping
Returns & Warranty
Manufacturer: Allen-Bradley
Product No.: 1746-OA8
Country of origin:United States
Product Type: AC Output Module
Payment: T/T, Western Union
Weight: 220g
Dimensions: 11.8 x 3.5 x 14.5 cm
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1746-OA8 is a reliable and efficient AC output module designed specifically for the Allen-Bradley SLC 500 modular hardware platform. This general-purpose solid-state module features 8 independent output channels operating within a 120/240 Volt AC range. Built to withstand demanding industrial environments, it provides robust switching capabilities for various AC-driven actuators, pilot lights, and motor starters within automated control systems.
Engineered for high density and operational dependability, the 1746-OA8 incorporates integrated front-panel LED status indicators for quick visual confirmation of individual I/O point states. The module utilizes durable terminals equipped with self-lifting pressure plates capable of securely accepting up to two 14 AWG wires per terminal, streamlining panel wiring and installation maintenance.
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Catalog Number / SKU | 1746-OA8 |
| Product Type | AC Output Module |
| Platform | SLC 500 |
| Voltage Category | 120/240 Volt AC |
| Operating Voltage Range | 85 to 265 Volt AC, 47 to 63 Hertz |
| Number of Outputs | 8 outputs |
| Backplane Current Consumption | 185 mA at 5 Volt DC; 0 mA at 24 Volt DC |
| Continuous Current Per Point | 1.0 A at 30 degC (86 degF); 0.5 A at 60 degC (140 degF) |
| Continuous Current Per Module | 8.0 A at 30 degC (86 degF); 4.0 A at 60 degC (140 degF) |
| Maximum On-State Voltage Drop | 1.5 Volt at 1.0 Amp |
| Maximum Off-State Leakage Current | 2 mA |
| Minimum Load Current | 10 mA |
| Surge Current Per Point | 10 A for 25 ms (repeatability once every 1 second) |
| Signal Delay | 1 ms ON / 11 ms OFF (resistive load) |
| Country of Origin | United States |
The module features a removable terminal block (RTB) located on the front face, allowing for easy wiring maintenance without disturbing field connections. The terminal block uses self-lifting pressure plates designed to accommodate up to two 14 AWG (2 mm squared) wires per screw terminal. Front-facing LED status indicators display the active state of each individual output point to assist with diagnostics and troubleshooting.
Ensure all power to the SLC 500 chassis and associated backplane is completely disconnected before inserting or removing the 1746-OA8 module. Mount the module into any available I/O slot of an SLC 500 chassis. Secure the module using the top and bottom retaining screws. To mitigate the effects of leakage current with solid-state outputs, apply an appropriate loading resistor in parallel with the load if necessary (e.g., a 15 kohm, 2W resistor for 120 Volt AC operation or a 15 kohm, 5W resistor for 240 Volt AC operation).
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
General Electric IC610MDL179 Series One AC Output Module | Original New | In Stock | View Details |
|
Allen-Bradley 1746-BAS SLC 500 BASIC Module | Original New | In Stock | View Details |
|
Allen-Bradley 1746-P4 SLC 500 Power Supply | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
A dead control cabinet does not automatically mean a failed power supply. This field guide uses input, no-load, loaded, ripple, wiring, and protection checks to separate source faults from downstream...
Reliable control begins before the PLC executes a loop. This engineering guide follows the signal chain from sensing and conditioning to transmission, control action, final elements, calibration, and...
Modbus remains widely deployed because its data model is simple, not because every implementation is simple. This guide explains frames, register mapping, timing, diagnostics, and the design limits...
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
Replacing a 1756-L73 does not automatically mean upgrading its firmware. This guide compares v19.013, v21.011 and v31.011, focusing on project compatibility, HMI communications, legacy networks and...
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
