1746-A7 | Allen-Bradley SLC 500 Seven-Slot Modular I/O Chassis
Allen-Bradley · HMIs & Displays
Description The Allen-Bradley 1746-A7 is a seven-slot chassis designed for SLC 500 modular control systems. It provides mechanical mounting and backplane connectivity for processors, communication modules, and I/O devices within a compact industrial installation. The 1746-A7 supports reliable system expansion and stable backplane power distribution for a wide range of automation applications. Technical Specifications Condition New/Never Used Surplus Brand Allen-Bradley Category I/O Chassis Part Number 1746-A7 Subcategory SLC 500 Series SLC 500 Hardware Type Modular I/O chassis Slots 7 Number of Expansion Chassis Up to 2 Compatible Expansion Cables 1746-C9, 1746-C7 Backplane Current Capacity 5.1 VDC @ 10 A; 24 VDC @ 2.88 A Mounting Panel mount Mounting Tabs 4 Dimensions 28.2 × 17.1 × 14.5 cm (11.3 × 6.8 × 5.8 in) Weight 1.1 kg (2.4 lb) Operating Temperature 0 to 60 °C Storage Temperature –40 to 85 °C Thermal Dissipation 2.5 BTU/hr @ 28.8 VDC Orientation Typically horizontal installation System Compatibility SLC processors, I/O modules, communication adapters Information About 1746-A7 The 1746-A7 is part of the Allen-Bradley SLC 500 modular chassis family, offering a seven-slot configuration that enables flexible arrangement of processors, adapters, and I/O modules. Built with a rigid frame and integrated backplane circuitry, the chassis provides power distribution and data communication pathways for all installed modules. It supports panel-mounted installation and can operate with one or two additional expansion chassis through the use of approved interconnection cables. Typical usage involves assembling scalable SLC 500 control systems where structured mounting, signal integrity, and modular expansion are essential. Key Features Seven-slot layout: Accommodates processors, communication adapters, and I/O modules. Backplane power distribution: Supports 5.1 VDC @ 10 A and 24 VDC @ 2.88 A. Modular expansion capability: Up to two additional chassis using 1746-series interconnect cables. Panel-mount design: Four mounting tabs support secure installation inside control enclosures. Compatible with SLC 500 family: Works with all SLC processors and modular components. Durable construction: Provides stable support and reliable electrical pathways. Wide operating range: Functions from 0 to 60 °C for industrial environments. The 1746-A7 delivers the reliability and precision required for structured modular controller installations in SLC 500 automation systems.
Brand: Allen-Bradley · Category: HMIs & Displays
Key features
- Seven-slot layout: Accommodates processors, communication adapters, and I/O modules.
- Backplane power distribution: Supports 5.1 VDC @ 10 A and 24 VDC @ 2.88 A.
- Modular expansion capability: Up to two additional chassis using 1746-series interconnect cables.
- Panel-mount design: Four mounting tabs support secure installation inside control enclosures.
- Compatible with SLC 500 family: Works with all SLC processors and modular components.
- Durable construction: Provides stable support and reliable electrical pathways.
- Wide operating range: Functions from 0 to 60 °C for industrial environments.
Specifications
| Manufacturer part number | 1746-A7 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | I/O Chassis |
| Part Number | 1746-A7 |
| Subcategory | SLC 500 |
| Series | SLC 500 |
| Hardware Type | Modular I/O chassis |
| Slots | 7 |
| Number of Expansion Chassis | Up to 2 |
| Compatible Expansion Cables | 1746-C9, 1746-C7 |
| Backplane Current Capacity | 5.1 VDC @ 10 A; 24 VDC @ 2.88 A |
| Mounting | Panel mount |
| Mounting Tabs | 4 |
| Dimensions | 28.2 × 17.1 × 14.5 cm (11.3 × 6.8 × 5.8 in) |
| Weight | 1.1 kg (2.4 lb) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | –40 to 85 °C |
| Thermal Dissipation | 2.5 BTU/hr @ 28.8 VDC |
| Orientation | Typically horizontal installation |
| System Compatibility | SLC processors, I/O modules, communication adapters |
| Product type | SLC 500 7 Slot Modular Chassis, back-panel mount |
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