ControlLogix Series B AC Power Supply
| Minimum Order Quantity | 1 Piece |
| Price | Contact for Jim |
| Packaging Details | Original new Factory Sealed |
| Delivery Time | 3–7 Days |
| Payment Terms | T/T |
| Shipping Method | DHL / FedEx / UPS / TNT |
| Supply Ability | Brand new, In Stock |
| Model Number | 1756-PA75/B |
| Series | B |
| Nominal AC input | 120 / 240 V AC |
| AC operating voltage | 85–265 V AC |
| Input frequency | 47–63 Hz |
| Maximum input power | 100 W / 100 VA |
| Maximum combined output power | 75 W |
| 1.2 V DC output capacity | 1.5 A |
| 3.3 V DC output capacity | 4 A |
| 5.1 V DC output capacity | 13 A |
| 24 V DC output capacity | 2.8 A |
| Maximum inrush current | 20 A |
| Hold-up at 85 V AC, 60 Hz | 2 cycles |
| Hold-up at 120 V AC, 60 Hz | 6 cycles |
| Hold-up at 220 V AC, 60 Hz | 20 cycles |
| Continuous isolation voltage | 250 V; reinforced input-to-backplane insulation |
| Isolation test | 3,500 V DC for 60 s |
| Compatible chassis series | B / C |
| Power connection wire | 2.5 mm² (14 AWG), copper |
| Minimum conductor temperature rating | 90 °C |
| Maximum wire insulation diameter | 1.2 mm |
| Power terminal screw torque | 0.565 N·m |
| Operating temperature | 0–60 °C |
| Enclosure rating | Open-style |
| North American temperature code | T4 |
| Sales | Phone/Whatsapp | |
|---|---|---|
| Jim Pei | [email protected] | +86 18020776782 |
Allen-Bradley 1756-PA75/B is a Series B AC power supply for the ControlLogix chassis backplane. It converts the incoming AC supply into the DC rails required by installed modules. The combined backplane output is limited to the specified total power budget. Each output rail also has its own current capacity. The supply mounts directly at the left side of a compatible chassis.
The 1756-PA75/B provides rack power for an assembled ControlLogix system. It is selected from the load requirements of the controller and I/O combination. Chassis compatibility must be checked at the series level before replacement. Wiring and grounding should follow the applicable ControlLogix installation arrangement. This power supply is a standard chassis supply rather than a redundant supply assembly.
Feed the compatible ControlLogix backplane directly from the chassis-mounted supply.
Supply the backplane voltages used by the installed controller and I/O modules while respecting rail and combined-power limits.
Maintain an existing standard ControlLogix rack with a supply selected for its chassis series and calculated module load.
Only if the combined power remains within the total output limit; calculate the entire chassis load.
No. The PA75/B is a standard chassis-mounted AC supply, while redundant configurations use different hardware.
It identifies the series. Match the required series and chassis compatibility rather than ordering only by a shortened number.
The supply attaches at the left end of the chassis and powers the backplane rather than occupying a numbered module slot.
Its listed outputs are chassis backplane supplies. Plan the separate field-power distribution required by the I/O installation.
Remove incoming power and follow the system isolation procedure before working on power wiring or removing the supply.
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Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.
Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.
We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.
We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.
We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.
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