1746-P2-p2
Allen-Bradley Chassis Power Supply 1746-P2
Allen Bradley
Allen-Bradley Chassis Power Supply 1746-P2
Home > Allen-Bradley > SLC 500 Power Supplies > 1746-P2 Need Allen-Bradley 1746-P2? Chassis Power Supply for SLC 500. Supplied with full traceability …
Specifications
| Brand | Allen-Bradley |
|---|---|
| Model Number | 1746-P2 |
| Official Product Name | 1746-P2 SLC 500 Power Supply Module |
| Applicable System | SLC 500 (1746 chassis) |
| Product Type | Chassis Power Supply |
| Equivalent Standard | Contact us for cross-reference and alternative models |
| Product Status | In Stock |
| Frequency | 47-63 Hz |
| 5 V DC Output Current | 5 A |
| 24 V DC Output Current | 0.96 A |
| Typical Line Power | 180 VA |
| Inrush Current | 20 A |
| Hold-Up Time | 20 ms (full load) / 3000 ms (no load) |
| Operating Temperature | 0 to 60 C |
| Mounting | 1746 chassis, leftmost slot |
| Fuse Protection | 1746-F1 or equivalent |
| Weight | 0.62 kg (1.38 lb) |
| Input Voltage | 85-132 V AC or 170-265 V AC (selectable) |
Product Description
A jumper-selectable 85-265 V AC input lets the same module serve 120 V or 240 V sites, while a 20 ms hold-up at full load keeps the controller alive through brief sags. Maintenance teams use it as a direct replacement for failed 1746 series power units in panel retrofits and repairs. The 1746-P2 is a rack-mounted power supply built for the Allen-Bradley SLC 500 (1746) chassis, converting AC line voltage into regulated 5 V DC and 24 V DC backplane power for the processor, I/O and communication modules.
Basic Product Information
- Jumper-selectable 85-132 V AC or 170-265 V AC input (47-63 Hz) covers both 120 V and 240 V installations.
- 20 ms CPU hold-up at full load (up to 3000 ms at no load) bridges short input dips without logic loss.
- Mounts in the leftmost 1746 chassis slot with 1746-F1 fuse protection and 0-60 C operation.
- Delivers 5 V DC at 5 A and 24 V DC at 0.96 A to the SLC 500 backplane for processors, I/O and adapters.
Technical Specifications
Version & Model Difference
Within the 1746 power-supply family the P2 sits above the P1 (3.6 A at 5 V) and is a compatible, higher-current replacement; Series C adds continued CPU operation during a user-power shutdown that Series A/B do not. It is not interchangeable with 1747 processors or 1746 I/O modules.
Application Scenarios
- Packaging lines and material handling where stable backplane power keeps SLC 500 controllers running.
- Water and wastewater pump stations using flexible 120/240 V input at remote sites.
- Food and beverage panels benefiting from long hold-up during power sags.
- Panel retrofits and spare-part replacement of failed 1746 chassis power units.
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Frequently Asked Questions
What input voltage does the 1746-P2 support?
It accepts 85-132 V AC or 170-265 V AC (47-63 Hz), jumper-selectable for 120 V or 240 V sites.
Can the 1746-P2 replace a 1746-P1?
Yes. The 1746-P2 is a compatible higher-current replacement (5 A vs 3.6 A at 5 V DC) for the same 1746 chassis.
How long is the hold-up time during a power dip?
20 ms at full load and up to 3000 ms with no load, protecting the CPU through brief sags.
Where is the module mounted in the chassis?
In the leftmost slot of any 1746 chassis; never install it in a processor or I/O position.
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