Product Overview
The 1756-PSCA2 is a Chassis Adapter Module for a redundant power supply. Manufactured by Allen Bradley under the ControlLogix series, this module comes with shipping weight of 8.1 ounces and shipping dimensions of 1.38 x 6 x 5.81 inches. It is mounted on left chassis and comes with 3 RTBs featuring a 1756-TBSH or a 1756-TBNH. The module can endure an operating temperature of 0 to 60 degrees Celsius while the recommended storage temperature for the 1756-PSCA2 is -45 to 60 degrees Celsius.
Technical specifications for 1756-PSCA2
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1756-PSCA2 |
| Series | ControlLogix |
| Module Type | Chassis Adapter Module for Redundant Power Supply |
| Weight | 8.1 ounces (0.228 kilograms) |
| Dimensions | 5.51 x 4.41 x 5.71 inches |
| Mounting | Chassis - Left |
| Operating Temperature | 32-140 Fahrenheit (0-60 Celsius) |
| Backplane Current (24 Volts) | 125 milliamps |
| Power Dissipation (Max) | 25.7 Watts at 30 Celsius, 21.3 Watts at 60 Celsius |
| Removeable Terminal Blocks | 3 RTBs, 1756-TBSH or 1756-TBNH |
| Operating Temperature | 32-140 Fahrenheit (0-60 Celsius) |
Products Description
The Allen-Bradley 1756-PSCA2 is a chassis adapter module used to funnel power from one or two redundant power supplies into the single power connector on the chassis backplane. It is an essential component in building ControlLogix Redundant Power Supply Systems. Only one of these is required to create a system, and it is compatible with Bulletin 1756-PA75R and 1756-PB75R power supplies. The 1756-PSCA2 Redundant Power Supply Chassis Adapter is an open-type passive device. And it has a current capacity of 1.5 A at 1.2V DC, 4 A at 3.3V DC, 15 A at 5.1V DC, and 2.8 A at 24V DC. The 1756-PSCA2 Chassis is designed to be mounted horizontally. Connect it to the power supply using a 1756-CPR2 cable on the left side. This cable has a bend radius of 5 inches (12.7 cm) – which is also the minimum clearance to route and connect parts. The 1756-PSCA2 comes with an Ex nA IIC T4 Gc protection type according to the EN 60079-15, and IECEx UL 14.0008X Hazardous Location Certificate. Ground the device according to the grounding requirements of the application. Some applications may require an additional protective earth-ground terminal stud to link the chassis to the ground bus. To minimize resistance, wire lengths should be kept as short as possible.
Features
- Removal and Insertion Under Power
- Producer/Consumer Communication
- System Time Stamp of Data
- Module-Level Fault Reporting
- Field-Side Diagnostic Detection
The/Allen-Bradley 1756 Series ControlLogix Digital I/O Modules are input and output modules that provide On/Off detection and actuation. These modules can produce information when needed while providing additional system functions.Each module maintains specific identification information that separates it from all other modules.
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Inventory Stock
| ALLEN-BRADLEY | ABB | BENTLY NEVADA | Schneider |
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| 1794-PS1 | TU812V1 3BSE013232R1 | 3500/40M 140734-01 | 140CRA21220 |
| 1794-TB2 | TU818V1 3BSE069209R1 | 3500/40M 176449-01 | 140CRA93100 |
| 1794-TB3G | TU831V1 3BSE013235R1 | 3500/60 163179-01 | 140CRP93100 |
| 1794-TB3S | TU840 3BSE020846R1 | 3500/62 163179-03 | 140CRP93200C |
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