ProductPRODUCT
Featured products
Contact Us
- Allen Bradley
- 1756-PBXT
- ControlLogix ControlNet Communication Module
- USA
- 14.0 × 11.2 × 14.5 cm
- 0.95kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 38
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 |
Industrial Technical Report – 1756-PBXT ControlLogix XT DC Power Supply Module
Product Overview
The 1756-PBXT is a ControlLogix XT series DC power supply module designed for industrial automation systems requiring extended temperature capability. It converts 24V DC input into regulated backplane power for ControlLogix chassis modules, ensuring stable operation of controllers, I/O modules, and communication components in harsh environments.
This model is part of the “XT” product line, which is engineered for extreme industrial conditions such as high vibration, temperature variation, humidity, and outdoor or heavy-industry installations.
Compared with standard ControlLogix power supplies, the PBXT version is optimized for environmental robustness rather than redundancy or high-capacity expansion.
Brand Information
The product belongs to a globally recognized industrial automation platform specializing in PLC control systems, industrial communication, motion control, and distributed automation solutions.
It is widely applied in:
- Industrial automation systems
- Harsh environment control systems
- Process industries
- Energy infrastructure
- Remote and outdoor installations
Key characteristics include:
- Extended temperature resistance
- Industrial-grade durability
- Stable DC backplane power supply
- Modular system compatibility
- High environmental tolerance
Product Series
ControlLogix XT Platform
The 1756-PBXT belongs to the ControlLogix XT series, a ruggedized version of the standard ControlLogix platform.
Key features of the XT series include:
- Extended operating temperature range
- Enhanced vibration resistance
- High humidity tolerance
- Industrial environmental sealing improvements
- Compatibility with standard 1756 chassis systems
- Stable distributed control capability
Supported modules in the ecosystem include:
- XT controllers
- XT communication modules
- XT I/O modules
- XT power supply modules
The 1756-PBXT provides stable DC backplane power in demanding industrial conditions.
Technical Parameters
Detailed Specification Table
| Parameter | Specification |
|---|---|
| Model | 1756-PBXT |
| Product Type | DC XT Power Supply Module |
| Series | ControlLogix XT |
| Input Voltage Range | 18–32V DC |
| Nominal Input | 24V DC |
| Maximum Input Power | 70 W |
| Output Power | 52 W |
| Backplane Current (5V DC) | 8–10 A |
| Backplane Current (3.3V DC) | 4 A |
| Backplane Current (1.2V DC) | 1.5 A |
| Backplane Current (24V DC) | 1.75 A |
| Isolation Voltage | 250V continuous |
| Inrush Current | ≤ 30 A |
| Operating Temperature | -25°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | 2G (10–500 Hz) |
| Shock Resistance | 30G operating |
| Mounting Type | 1756 chassis left-slot |
| Cooling Method | Natural convection |
| EMC Protection | Industrial hardened design |
| Dimensions | 14.0 × 11.2 × 14.5 cm |
| Weight kg（ ） | ~0.95 kg |
Product Description
The 1756-PBXT provides regulated DC-to-backplane power conversion for ControlLogix systems operating in extreme environments. Its XT design allows stable performance in temperature-extended applications where standard power supplies may not be suitable.
It supports all standard backplane voltage rails and is designed to maintain stable system operation under harsh industrial stress conditions.
This module is commonly used where environmental resilience is more important than redundancy or high-output scaling.
Product Applications
Harsh Industrial Automation
Used in:
- Outdoor automation systems
- Heavy machinery control
- Mining equipment control
- Steel production environments
Energy Industry
Applied in:
- Wind turbine control systems
- Solar field control units
- Substation outdoor installations
- Remote energy monitoring systems
Oil & Gas Industry
Used in:
- Offshore platforms
- Pipeline remote stations
- Refinery harsh-zone cabinets
- SCADA field installations
Transportation Systems
Used in:
- Rail infrastructure systems
- Trackside control cabinets
- Tunnel automation systems
- Signal control units
Environmental Control Systems
Used in:
- Water treatment plants
- Waste management systems
- Outdoor pumping stations
- Environmental monitoring networks
Product Advantages
1. Extended Temperature Capability
Operates reliably in both low and high extreme temperatures.
2. Rugged Industrial Design
Built for vibration, shock, and humidity resistance.
3. Stable DC Backplane Power
Ensures consistent system operation under harsh conditions.
4. Compact Modular Integration
Fits standard ControlLogix chassis architecture.
5. High Environmental Tolerance
Suitable for outdoor and industrial field deployment.
6. Reliable Long-Term Operation
Designed for continuous duty in demanding environments.
Recommended Models (Same Series or Related)
ControlLogix Power Supply Family
| Model | Type | Input | Key Feature | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-PBXT | XT DC Power Supply | 18–32V DC | Extended temperature rugged design | 14.0×11.2×14.5 cm | 0.95 kg |
| 1756-PB75R | Redundant DC Supply | 18–32V DC | High availability redundancy | 17.5×14.5×13.7 cm | 1.45–1.60 kg |
| 1756-PB75 | DC Power Supply | 18–32V DC | Standard high capacity | 14.8×14.2×13.5 cm | 1.55 kg |
| 1756-PB72 | DC Power Supply | 18–32V DC | Medium capacity module | 14.5×11.2×14.0 cm | 0.95 kg |
| 1756-PB50 | DC Power Supply | 18–32V DC | Compact DC module | 14.2×14.0×13.2 cm | 1.00 kg |
| 1756-PA75 | AC Power Supply | 85–265V AC | AC input version | 14.8×14.2×13.5 cm | 1.58 kg |
Recommended Popular Models (Same Platform Ecosystem)
Widely Used Automation Modules
| Model | Function | Network | Role | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-L85E | PLC Controller | EtherNet/IP | Main processing unit | 15×14×13 cm | 0.65 kg |
| 1756-EN2TR | Ethernet Module | EtherNet/IP | Communication interface | 13×14×12 cm | 0.48 kg |
| 1769-L36ERM | Compact PLC | Ethernet | Mid-range controller | 15×11×10 cm | 0.75 kg |
| 1734-AENTR | I/O Adapter | EtherNet/IP | Remote I/O gateway | 7×7×7 cm | 0.20 kg |
| 5069-L320ER | Advanced PLC | EtherNet/IP | High-performance control | 13×10×9 cm | 0.54 kg |
Installation Notes
The module is installed in the left slot of a compatible ControlLogix chassis and connects directly to the backplane power system.
Key requirements:
- Confirm DC input stability
- Ensure proper grounding
- Maintain ventilation clearance
- Avoid extreme contamination environments when possible
- Verify XT chassis compatibility
Maintenance Characteristics
- Hot-swappable module design
- Minimal maintenance requirements
- Built-in diagnostic indicators
- Long operational lifecycle
- Rapid field replacement capability
Final Summary
The 1756-PBXT is an extended-temperature DC power supply module designed for ControlLogix systems operating in harsh industrial environments. Its strength lies in environmental robustness rather than redundancy or high-capacity output.
It is widely used in outdoor automation, energy infrastructure, and heavy industry applications where stable operation under extreme conditions is required.