The Allen-Bradley 1756-A4 is a ControlLogix Chassis. It is a 4-Slot ControlLogix Chassis with Power dissipation and 1.8 W power consumption. It has dimensions of 50.8 x 50.8 x 20.3 cm (20 x 20 x 8 in.).in and weighs 1.7 lbs. It is horizontally mounted inside the panel and it has an open enclosure. It has a maximum Backplane current of 1.5 A at 1.2 V DC, 4 A at 3.3 V DC, 15 A at 5.1 V DC, and 2.8 A at 24 V DC.
The chassis backplane provides a high-speed communication path between modules and distributes power to each of the modules within the chassis.
The 1756-A4 Standard Chassis provides easy maintenance with the Removal and Insertion Under Power (RIUP) feature. For preventing replacement errors, it also offers electronic keying.
The 1746-A4 is and Allen-Bradley ControlLogix chassis that provides mounting to ControlLogix modules processors, IO modules, communication adapters, specialty module, intelligent, encompass partner and 3rd party modules.
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.1756-A4
SeriesControlLogix
Slots4
Module TypeChassis
No. of SlotsFour (4)
Power Dissipation (Max)4 Watts
MountingHorizontal
Dimensions20 x 20 x 8 inches
Weight1.7 pounds (0.75 kilograms)
EnclosureOpen
Backplane Current (5 Volts DC)10 amps
Backplane Current (24 Volts DC)2.8 Amps
Available SeriesSeries A, B, C