Allen-Bradley 1746-P2 SLC 500 Power Supply

Overview

The Allen-Bradley 1746-P2 is the AC input power supply for the SLC 500 programmable controller family, providing the DC power that the chassis backplane and SLC 500 modules need to operate. Accepting line voltages of 85-132 V AC or 170-265 V AC at 47-63 Hz with a typical line power of 180 VA, the 1746-P2 delivers 5 A at 5 V DC and 0.96 A at 24 V DC to the chassis, with additional 24 V DC user power for external devices.

Seven Star LLC supplies the Allen-Bradley 1746-P2 power supply for SLC 500 control systems across the Sultanate of Oman and the GCC. Water treatment, power, oil and gas, and industrial plants continue to operate SLC 500 systems, and our team provides genuine Allen-Bradley spare parts with regional delivery to Muscat, Sohar, Salalah, and beyond.

Operating Principle

The SLC 500 chassis backplane carries both data and power to the processor, I/O modules, and specialty modules installed in the chassis. The 1746-P2 mounts in the chassis and converts the AC mains supply into the regulated 5 V DC and 24 V DC rails that the backplane distributes to all modules. Correct power supply selection is essential: each module consumes backplane current, and the power supply must be sized to cover the total current demand of the installed configuration.

The 5 V DC rail powers the logic and I/O circuitry of the modules, while the 24 V DC rail serves modules with internal 24 V requirements. The power supply also provides 24 V DC user power, which can be used to power small external devices such as sensors and indicators without a separate supply.

Engineering Design of the Allen-Bradley 1746-P2

The 1746-P2 is built to the SLC 500 chassis standard: it slides into the dedicated power supply slot and connects directly to the backplane, so no separate wiring is needed for module power. It accepts the wide AC input range of 85-132 V AC or 170-265 V AC at 47-63 Hz, making it suitable for the 220-240 V AC mains common in the GCC, with automatic handling of the dual-range input.

With a typical line power of 180 VA and a maximum inrush current of 20 A, the power supply is matched to the SLC 500 chassis range. The unit uses the standard 1746-F2 fuse, and its internal current ratings — 5 A at 5 V DC and 0.96 A at 24 V DC — define the load capacity for the chassis configuration.

Key Features

The Allen-Bradley 1746-P2 is specified for SLC 500 chassis powering. Its defining characteristics are:

• Genuine Allen-Bradley SLC 500 chassis power supply.
• Input range 85-132 V AC or 170-265 V AC at 47-63 Hz.
• Typical line power of 180 VA with 20 A maximum inrush.
• Delivers 5 A at 5 V DC and 0.96 A at 24 V DC to the backplane.
• 24 V DC user power output for small external devices.
• Uses the standard 1746-F2 fuse for protection.
• Direct backplane connection in the SLC 500 chassis power slot.
• Supplied by Seven Star LLC for control system spares across Oman and the GCC.

Industrial Applications

The 1746-P2 serves the installed base of SLC 500 control systems in the region: water and wastewater pumping stations, power and desalination auxiliary systems, oil and gas process skids, and general machine control. For plants that continue to operate SLC 500 hardware, a genuine spare power supply is essential inventory, because the power supply is the single point that feeds every module in the chassis.

Seven Star LLC supports maintenance teams across the Sultanate of Oman and the GCC with the Allen-Bradley 1746-P2 and the complete SLC 500 spare parts range. We provide genuine Allen-Bradley modules, power supply selection guidance, and regional stock, so that control system spares from Muscat to Salalah are sourced from an authentic, documented supplier.

Technical Specifications

The following table summarises the key parameters of the Allen-Bradley 1746-P2 power supply:

Call To Action

Request a formal quotation for the Allen-Bradley 1746-P2 power supply through the Seven Star LLC RFQ portal, and our team will confirm availability from regional stock and delivery to Oman or any GCC destination. As a trusted supplier of Allen-Bradley control system spares in the region, we also provide power budget guidance and cross-reference support for SLC 500 chassis. Contact Seven Star LLC today.

Power Budget and Spares Planning

Calculate the backplane power budget of the SLC 500 chassis by summing the 5 V DC and 24 V DC current consumption of the processor, I/O, and specialty modules, and confirm the total is within the 1746-P2 ratings of 5 A at 5 V DC and 0.96 A at 24 V DC. Use the specified 1746-F2 fuse and the 24 V DC user power output for small external devices. Seven Star LLC supports SLC 500 users in Oman and the GCC with genuine Allen-Bradley spares and power budget guidance.