1746-P3 | Allen-Bradley | SLC 500 Power Supplies

Product Description

Overview  The Allen Bradley SLC 500 series 1746-P3 power supply is designed to deliver stable and efficient DC power to SLC 500 controllers and modules. Installed on the left side of the 1746 chassis, it ensures reliable operation across a wide range of industrial environments.

Key Specifications

• Brand Allen Bradley

• Series SLC 500

• Product Type Power Supply

• Model/Part Number 1746-P3

• Weight 1.31 lbs (0.60 kg)

• Mounting Location Left side of 1746 chassis

• Nominal Input Voltage 24 VDC

• Input Voltage Range 19.2–28.8 VDC

• Input Power 61 W

• Typical Line Power Requirement 90 VA

• Inrush Current 20 A

• Isolation Voltage 600 V AC RMS for 1 second (Version B or later)

• Backplane Current (5 V) 3.6 A

• Backplane Current (24 V) 0.87 A

• Hold-Up Time 5 ms at full load, 1000 ms at no load

• Fuse Protection 1746-F3 or equivalent

• Operating Temperature 0–60 °C (32–140 °F)

• Derating 5% current capacity reduction above 55 °C (131 °F)

• Frequency DC

Application Scenarios  The 1746-P3 is ideal for use in compact industrial control systems where stable DC power is critical. It supports SLC 500 controllers in manufacturing automation, process control, and machine-level applications.

FAQ

• Q: What chassis does the 1746-P3 fit into?  A: It mounts on the left side of the 1746 chassis.

• Q: How does the module handle power interruptions?  A: It provides a hold-up time of 5 ms under full load and up to 1000 ms with no load, ensuring short-term continuity.

• Q: Is fuse protection included?  A: The unit requires a 1746-F3 fuse or an equivalent for circuit protection.

Comparison with Similar Models  Compared to the 1746-P1 and 1746-P2, the 1746-P3 offers higher current capacity at 5 V and 24 V outputs, making it more suitable for systems with greater module density and higher power demands.