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Allen Bradley 1756-PA75/B ControlLogix AC Power Supply
- Product Details
- FAQs
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- Packing & Delivery
- Product Ratings
Product Introduction
The Allen-Bradley 1756-PA75/B ControlLogix AC Power Supply is a high-capacity power module designed to provide stable and reliable backplane power for ControlLogix systems. With a 75 W output rating, it supports larger chassis configurations that require higher current availability for multiple processors, I/O, and communication modules.
This power supply accepts a wide input voltage range of 86–265 VAC, making it suitable for global industrial applications. It delivers a regulated 5 VDC output at up to 13 A, ensuring sufficient power for high-density ControlLogix systems.
Designed in an open-style chassis-mount format, the 1756-PA75/B connects directly to the left side of the ControlLogix rack and feeds power into the backplane. Built-in status LEDs provide quick operational diagnostics, while its robust industrial design ensures stable performance in demanding environments.
Product Specifications
| Parameter | Description |
|---|---|
| Model | 1756-PA75/B |
| Brand | Allen-Bradley |
| Product Type | ControlLogix AC Power Supply |
| Series | Series B |
| Output Power | 75 W |
| Input Voltage Range | 86–265 VAC |
| Output Voltage | 5 VDC |
| Output Current | 13 A |
| Mounting Type | Chassis mount (left side) |
| Design Type | Open style |
| Status Indicators | LED indicators |
| Backplane Connection | Direct connection |
| Operating Temperature | 0 to 60°C |
| Dimensions | 140 × 112 × 145 mm |
| Weight | 0.95 kg |
Applications
● High-density ControlLogix systems
Provides stable power for racks with multiple controllers and I/O modules.
● Industrial automation systems
Used in manufacturing lines requiring reliable and continuous power delivery.
● Process control environments
Supports critical applications in chemical, oil & gas, and power industries.
● Distributed control architectures
Suitable for complex systems with multiple communication and control modules.
● Global industrial installations
Wide input range allows use in different regional power standards.
Advantages
● Higher output current capacity
13 A at 5 VDC supports larger and more demanding ControlLogix configurations.
● Wide AC input range
Operates reliably across 86–265 VAC, reducing the need for external voltage adaptation.
● Direct backplane integration
Ensures efficient and stable power distribution to all chassis modules.
● Built-in diagnostics
LED indicators provide fast status checking and fault identification.
● Industrial-grade reliability
Designed for continuous operation in harsh and demanding environments.
● Flexible system support
Compatible with a wide range of ControlLogix chassis and module configurations.
FAQ
1. What is the main function of the 1756-PA75/B?
It supplies regulated 5 VDC power to the ControlLogix chassis and all installed modules.
2. What is the difference compared to lower-rated power supplies?
It provides higher output current (13 A), making it suitable for larger and denser system configurations.
3. Can it operate with unstable power sources?
Yes, it supports a wide 86–265 VAC input range for industrial environments with voltage variation.
4. Does it require configuration in software?
No, it operates as a hardware power module without software setup.
5. Where is it installed in the system?
It mounts on the left side of the ControlLogix chassis and connects directly to the backplane.
6. What is the purpose of the LED indicators?
They show power status, normal operation, and fault conditions for quick diagnostics.
7. Can it be used in harsh environments?
Yes, it is designed for industrial use with robust mechanical and electrical protection.
8. What happens if the system load is too high?
It includes protection mechanisms that limit output to prevent damage.
9. Is it compatible with all ControlLogix systems?
It is compatible with supported ControlLogix chassis designs that accept Series B power supplies.
10. Why is higher current output important?
It ensures stable operation when multiple high-power modules are installed in the same chassis.
Related Models
| Model | Description |
|---|---|
| 1756-PA72 | Standard AC power supply |
| 1756-PA50 | Lower capacity AC power supply |
| 1756-PB75 | DC power supply version |
| 1756-PB72 | DC power supply alternative |
| 1756-PSCA2 | Redundant power adapter |
| 1756-PSCA | Power supply redundancy module |
Popular Models
| Model | Description |
|---|---|
| 1756-L83E | Logix5580 controller |
| 1756-L82E | Logix5580 processor |
| 1756-EN2T | EtherNet/IP communication module |
| 1756-IB16 | Digital input module |
| 1756-OB32 | Digital output module |
| 1756-IF16 | Analog input module |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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