1756-PB50: ControlLogix DC Power Supply
The 1756-PB50 is the ControlLogix DC Power Supply covered on this page. The attribute that decides whether it fits the existing installation without modification is 5.51 x 3.07 x 5.71 in.
The reason to specify this exact variant is controllogix dc power supply. A power supply or battery in a controller rack is sized against the backplane budget, not in isolation. controllogix dc power supply is whether the unit delivers the voltage and current the rack draws at full load, and whether the battery holds programme and configuration through a power loss. Checking 5.51 x 3.07 x 5.71 in against the rack's requirement prevents a supply that fits the slot but cannot hold the load.
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1756-PB50 |
| Input Voltage Range | 18-32 VDC |
| Nominal Input | 24 VDC |
| Max Inrush Current | 30 A |
| Isolation Voltage | 250V Continuous |
| Current Capacity | 1.5A at 1.2V, 2A at 3.3V, 8A at 5.1V (50°C), 6A at 5.1V (60°C), 2.5A at 24V (50°C), 2.0A at 24V (60°C) |
| Hold-up Time | 30 ms (60W), 40 ms (50W) |
| Dimensions | 5.51 x 3.07 x 5.71 in |
| Weight | 1.7 lbs. |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-pb30xt-controllogix-xt-power-supply | confirm the configuration against your installation |
| allen-bradley-1756-pb72-controllogix-dc-power-supply-18-32vdc | confirm the configuration against your installation |
| allen-bradley-1756-pb72k-controllogix-dc-power-supply-module | confirm the configuration against your installation |
| allen-bradley-1756-pb75-controllogix-power-supply-18-32vdc | confirm the configuration against your installation |
| allen-bradley-1756-pb75r-controllogix-redundant-power-supply | confirm the configuration against your installation |
All Allen-Bradley parts · Power
Availability & Condition at AutoDCSTech
| Part Number | 1756-PB50 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
