The Allen-Bradley 1756-A4 is a 4-slot ControlLogix chassis engineered for modular automation systems. Designed to house ControlLogix controllers, communication modules, and I/O modules, this chassis provides a robust backplane with high-speed data transfer capabilities. Its compact form factor allows for efficient panel layout, while the rugged aluminum enclosure withstands vibration, temperature extremes, and industrial contaminants. The 1756-A4 supports up to 4 modules in a single rack, enabling scalable configurations for mid-sized applications. Whether used in discrete manufacturing or process control, this chassis ensures reliable operation and easy maintenance, with no need for additional power supplies in the backplane itself.
| Specification |
Details |
| Product Type |
ControlLogix Chassis |
| Model |
1756-A4 |
| Number of Slots |
4 |
| Backplane Type |
Passive, high-speed serial |
| Module Compatibility |
ControlLogix controllers, communication modules, analog/digital I/O |
| Maximum Modules per Chassis |
4 |
| Operating Temperature |
0°C to 60°C (32°F to 140°F) |
| Storage Temperature |
-40°C to 85°C (-40°F to 185°F) |
| Relative Humidity |
5% to 95% non-condensing |
| Vibration Resistance |
5 g at 10-500 Hz |
| Shock Resistance |
30 g peak |
| Enclosure Material |
Aluminum alloy with protective coating |
| Mounting |
DIN rail or panel mount |
| Dimensions (H x W x D) |
Approx. 5.25 x 5.0 x 4.5 inches (133 x 127 x 114 mm) |
| Weight |
Approx. 1.2 lbs (0.54 kg) |
| Power Supply Requirement |
Via backplane from installed power supply (e.g., 1756-PA72, 1756-PB72) |
| Communication Protocol |
ControlNet, EtherNet/IP, DeviceNet (via modules) |
| Certifications |
CE, UL, CSA, ATEX (Zone 2) |
| Warranty |
1 year against defects |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22