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Allen-Bradley · SLC 500 I/O (1746)
1746-P1 is an Allen-Bradley power supply with Efficiency ≥90%; Input voltage range 85...264 V AC; Supply voltage 100...240 V AC. It is used in DIN-rail control cabinets, sensor and relay supplies, backplane bus power where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Supply voltage | 100...240 V AC |
|---|---|
| Input voltage range | 85...264 V AC |
| Efficiency | ≥90% |
| Frequency | 47...63Hz |
| I/O and communication | |
| Communication ports | EtherNet/IP, DeviceNet |
| Mechanical | |
| Mounting | 35 mm DIN rail (IEC 60715) |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | 0...+55 °C (IEC 60068-2-1) |
| Certifications | CE, UL, cULus |
Values follow the Allen-Bradley SLC 500 I/O (1746) specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Lifecycle: discontinued by the manufacturer. Current-production replacement: Rockwell CompactLogix 5380 platform (SLC 500 I/O discontinued; confirm exact migration with Rockwell). Cross-reference by function and ratings, not by label alone.
| Allen-Bradley SLC 500 I/O (1746) variants | |||
| Catalog number | Efficiency | ||
|---|---|---|---|
| 1746-P1 (this page) | ≥90% | ||
| 1746-P3 | ≥90% | ||
| 1784-PCIC | ≥90% | ||
| 1784-U2DN | ≥90% | ||
All variants share the same SLC 500 I/O (1746) footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
The 1746-P1 is the device-level element in an Allen-Bradley power supply installation. It receives the field signals and control supply listed above — 100...240 V AC — and switches or conditions the load within the the rated ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in DIN-rail control cabinets, sensor and relay supplies, backplane bus power, where the unit is matched to the original catalog number and the enclosure provides 35 mm DIN rail (IEC 60715) support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Q.What supply does this device require?
It requires 100...240 V AC. Size the supply source to the same rating shown in the Specifications table.
Q.How is this device mounted?
It mounts by 35 mm DIN rail (IEC 60715). Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is 0...+55 °C (IEC 60068-2-1). Panels running beyond it need derated sizing.
Q.Is this catalog number still in production, and what replaces it?
It is discontinued by the manufacturer; the current-production replacement is Rockwell CompactLogix 5380 platform (SLC 500 I/O discontinued; confirm exact migration with Rockwell). Cross-reference by function and ratings, not by label alone.
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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