Allen-Bradley 1746-P1 SLC 500 Rack Mounting Power Supply

SKU 1746-P1

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12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1746-P1
Country of origin:United States
Product Type: Power Supply Units
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 650g
Dimensions: 140 mm x 145 mm x 75 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

Description

The Allen-Bradley 1746-P1 is a rack-mounting power supply designed for the SLC 500 modular controller system. It provides operating power directly to the SLC 500 chassis backplane, supplying internal current capacities of 2A at 5V dc and 0.46A at 24V dc for system modules. The unit accepts a selectable line voltage range of 85-132V ac or 170-265V ac at a frequency of 47 to 63 Hz. Additionally, the module features an auxiliary 24V dc user power supply output with a 200 mA current capacity. Designed with 1800V ac RMS isolation between the input terminals and the backplane, it protects control electronics from external electrical disturbances.

Features

Rack-Mount Architecture: Mounts directly into the left side of an SLC 500 modular chassis.
Dual Input Voltage Range: Supports AC line inputs of 85-132V ac or 170-265V ac.
Auxiliary User Power: Features an onboard 24V dc user power connection providing up to 200 mA.
Overcurrent Protection: Includes fuse protection via a replaceable 1746-F1 (or equivalent 250V-3A) fuse.
Backplane Electrical Isolation: Continuous isolation rated at 1800V ac RMS for 1 second between input terminals and backplane.

Applications

Main system power source for SLC 500 chassis assemblies.
Process control systems requiring localized 24V dc user power for sensor inputs.
Industrial automation chassis installations in general manufacturing and processing lines.

Technical Specifications

Parameter	Specification
Manufacturer	Allen-Bradley / Rockwell Automation
Catalog Number	1746-P1
Product Class	Power Supply Units
Line Voltage	85-132/170-265V ac
Line Frequency	47 to 63 Hz
Typical Line Power Requirement	135 VA
Maximum Inrush Current	20A
Internal Current Capacity (5V dc)	2A
Internal Current Capacity (24V dc)	0.46A
24V dc User Power Current Capacity	200 mA
24V dc User Power Voltage Range	18-30V dc
Fuse Protection	1746-F1 or equivalent (250V-3A)
Max User-Supplied Overcurrent Protection	15A
CPU Hold-up Time	20 ms (full load) / 3000 ms (no load)
Isolation	1800V ac RMS for 1 s (input terminals to backplane)
Ambient Operating Temperature	0 degC to +60 degC (+32 degF to +140 degF)
Temperature Derating	Current capacity derated 5% above +55 degC
Depth	140 mm (5.70 in)

Installation Guidelines

Mounting Position: Install the power supply in the leftmost position of the SLC 500 chassis.
Overcurrent Protection: Use time-delay type overcurrent protection (maximum 15A) in all ungrounded conductors.
Input Voltage Jumper: Verify and configure the input voltage jumper setting (120V ac or 240V ac) prior to applying line power.
Grounding Requirements: Ensure the power supply chassis ground terminal is connected to earth ground.
Fuse Servicing: Replace blown fuses with a 1746-F1 fuse or equivalent 250V, 3A fast-acting fuse (e.g., Bussmann AGC 3).

Compliance and Certifications

UL Listed Industrial Control Equipment for Class 1, Division 2, Groups A, B, C, D Hazardous Locations
CSA Certified Process Control Equipment for Class 1, Division 2, Groups A, B, C, D Hazardous Locations
CE Compliant (European Union 89/336/EEC EMC Directive & 73/23/EEC LVD Directive)
C-Tick Compliant (AS/NZS 2064 Industrial Emissions)

FAQ

What line voltages are supported by the power supply?

The power supply supports selectable line input voltages of 85-132V ac or 170-265V ac at 47 to 63 Hz.

What internal backplane currents are provided to the chassis?

The supply provides internal backplane current capacities of 2A at 5V dc and 0.46A at 24V dc.

Does the unit include auxiliary power for user devices?

Yes, it includes a 24V dc user power output supplying up to 200 mA across an 18-30V dc voltage range.

What fuse specification is required for protection replacement?

The unit uses a 1746-F1 fuse or equivalent 250V, 3A rated fuse such as the Bussmann AGC 3.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Black
Country of origin	United States
Power source	AC-powered