Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The 1756-PB75K is an industrial power supply module designed for ControlLogix automation systems. It provides regulated DC power to the backplane, ensuring stable operation of controllers, I/O modules, communication modules, and other system components installed in a ControlLogix chassis.
This module is widely used in industrial automation environments where reliable power distribution is critical for continuous system operation. It is designed to maintain stable voltage output even under fluctuating industrial power conditions.
The “K” suffix typically indicates a revision or kit variation within the same power supply family, used in ControlLogix rack-based architectures.
| Item | Description |
|---|---|
| Brand | Industrial Automation Control Brand |
| Product Category | ControlLogix Power Supply Module |
| Series | 1756 ControlLogix Series |
| Model | 1756-PB75K |
| Function | Rack Power Supply Unit |
| System Type | PLC Backplane Power System |
| Application Field | Industrial Control Systems |
The 1756 ControlLogix series is a modular automation platform designed for large-scale industrial control systems.
Typical characteristics include:
Note: The following specifications are based on typical ControlLogix power supply design standards. Dimensions and weight are engineering estimates.
| Parameter | Specification |
|---|---|
| Model | 1756-PB75K |
| Product Type | ControlLogix Power Supply Module |
| Series | 1756 ControlLogix Series |
| Function | Backplane Power Supply |
| Input Voltage | Industrial AC/DC Input Range |
| Output Power | 75W Class Power Supply |
| Output Type | Regulated DC Backplane Power |
| Efficiency | High Efficiency Industrial Design |
| Protection | Overload / Short Circuit Protection |
| Mounting Type | ControlLogix Chassis Mounted |
| Hot Swappable | Supported in System Architecture |
| Cooling Method | Passive / Convection Cooling |
| Status Indicators | Power and Fault LEDs |
| Isolation | Industrial Electrical Isolation |
| EMC Protection | Industrial EMC Compliance |
| Operating Temperature | Industrial Standard Range |
| Redundancy Support | Optional System Redundancy Design |
| Application Mode | PLC System Power Distribution |
| Backplane Compatibility | ControlLogix Chassis |
| Diagnostics | Power Status Monitoring |
| Dimensions (mm) | Approx. 140 × 90 × 130 mm |
| Weight (kg) | Approx. 0.85 kg |
The 1756-PB75K power supply module is responsible for providing stable electrical power to the ControlLogix backplane system. It ensures that all installed modules within the chassis receive consistent voltage and current required for operation.
It is designed to handle industrial electrical conditions such as voltage fluctuations, electrical noise, and load variations. This makes it suitable for critical automation systems where downtime must be minimized.
The module supports modular replacement and can be installed or replaced without complex system disassembly, depending on system configuration.
Provides consistent voltage to PLC backplane systems.
Includes overload and short-circuit protection.
Easily integrates into ControlLogix chassis systems.
Designed for continuous industrial operation.
Provides real-time power status feedback.
Uses passive cooling for improved reliability.
Ensures stable operation of PLC and I/O modules.
Designed for harsh electrical environments.
Simplifies replacement and servicing.
Fits seamlessly into ControlLogix racks.
Reduces energy loss during operation.
Protects downstream modules from electrical faults.
Supports large distributed control systems.
Provides power for PLC-based control systems.
Supports continuous production line operation.
Used in chemical, water, and energy systems.
Powers modular control architectures.
Supports robotics and assembly systems.
Used in conveyor and logistics automation.
Serves as core power module in PLC racks.
| Model | Power Level | Function | Application |
|---|---|---|---|
| 1756-PB72 | 72W | Standard Power Supply | ControlLogix Systems |
| 1756-PA75 | AC Input | Power Module | Factory Automation |
| 1756-PB75 | 75W | Standard Version | PLC Rack Power |
| 1756-PSCA2 | Redundant Support | System Power | High Availability Systems |
| 1756-PSCA4 | Advanced Redundancy | Critical Systems | Industrial Control |
| Model | Power | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 1756-PB72 | 72W | 140 × 90 × 130 | 0.82 |
| 1756-PA75 | AC Input | 145 × 95 × 135 | 0.88 |
| 1756-PB75 | 75W | 140 × 90 × 130 | 0.85 |
| 1756-PSCA2 | Redundant | 150 × 100 × 140 | 1.05 |
| 1756-PSCA4 | High Redundancy | 160 × 110 × 150 | 1.25 |
| Model | Product Category | Application |
|---|---|---|
| 1756-L81E | PLC Controller | High-End Automation |
| 1756-EN2T | Ethernet Module | Industrial Networking |
| 1756-IB16 | Input Module | Signal Processing |
| 1756-OB16E | Output Module | Actuator Control |
| 1756-CN2R | ControlNet Module | Industrial Communication |
| Model | Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 1756-L81E | PLC CPU | 145 × 175 × 140 | 0.65 |
| 1756-EN2T | Ethernet Module | 145 × 175 × 140 | 0.65 |
| 1756-IB16 | Input Module | 120 × 40 × 90 | 0.30 |
| 1756-OB16E | Output Module | 120 × 40 × 90 | 0.32 |
| 1756-CN2R | Communication Module | 145 × 175 × 140 | 0.70 |
The 1756-PB75K is a ControlLogix rack power supply module designed to provide stable and reliable power to PLC systems. It ensures consistent operation of automation modules by delivering regulated backplane power in industrial environments.
Its key advantages include stable power delivery, industrial durability, modular integration, and strong system protection. It is widely used in manufacturing plants, process control systems, machine automation, automotive production, and large-scale industrial control systems.
The module plays a critical role in maintaining overall system stability within ControlLogix-based automation architectures.