Overview
The Allen-Bradley 1746-A2 is an SLC 500 Expansion Chassis with 2 Slots. The 2-slot, SLC 500 fixed I/O expansion chassis (1746-A2) will support specific combinations of modules. The 1746-A2 belongs to the Allen-Bradley SLC 500 series and offers two additional module slots to extend the functionality of an existing controller system.
Key Features
- 2-Slot Expansion Capacity: allows installation of two additional SLC 500 modules to extend system functionality
- Back-Panel Mounting: designed for secure and straightforward integration into existing control panels
- Includes optical coupling and filter circuitry which provides signal noise reduction
- Chassis interconnection cables are used for interconnecting up to 3 chassis for a maximum of 30 module slots
- CE Marked, cUL Marked, and UL Marked
Technical Specifications
- Dimensions: 5.5 x 7 x 4 inches
- Weight: 0.3 kilograms
- Backplane current: 10 A at 5.1 Volts DC and 2.88 A at 24 Volts DC
- Mounting: Back-Panel mounting with open enclosure
- Requires separate power supply fitted on left-hand side of chassis
- Compatible with 1747 SLC processor, 1746 SLC I/O adapter module and 1746 I/O modules
Typical Applications
The 1746-A2 is suited for applications requiring modular expansion of SLC 500 control systems, including:
- Industrial automation and discrete manufacturing control
- Process control systems with distributed I/O requirements
- Facility upgrades and system retrofits where space is constrained
- Multi-chassis networked control architectures
- Machine and equipment control requiring expandable I/O capacity
Compatibility & Replacements
Compatible With
- SLC 500 processor modules (1747 series)
- SLC 500 I/O adapter modules (1746 series)
- SLC 500 fixed I/O modules
- Back-panel mounting in standard control enclosures
Replaces / Drop-In Replacement For
Direct replacement compatibility within the 1746 SLC 500 modular chassis family. Verify compatibility with your system integrator before ordering for specific module combination requirements.
Works With
- Allen-Bradley SLC 500 programming software (RSLogix 500)
- SLC 500 communication adapters and interface modules
- Multi-chassis interconnection via proprietary cables
