Allen-Bradley 80026-172-24-R Switching Power Supply

Configured for industrial power distribution, the Allen-Bradley 80026-172-24-R (80026-172-24-R Switching Power Supply) provides direct electrical regulation and conversion for 24 VDC control systems.

Hardware Specifications

Industrial Control and Power Determinism

The 80026-172-24-R utilizes high-frequency switching to deliver regulated voltage to PLC backplanes and I/O modules. The module firmware and hardware logic facilitate consistent power output despite input fluctuations, maintaining the deterministic power levels required for control stability. Integration requires adherence to standard load balancing practices across the backplane bus, ensuring that the 10 A output capacity is not exceeded during peak I/O activation states or drive engagement cycles.

Frequently Asked Questions

Q: Does the 80026-172-24-R support hot-swapping under full load?

A: No. The unit must be isolated from the input source before disconnection. Removing the power supply while connected to the system bus can cause voltage spikes that may damage downstream sensitive electronics or communication interfaces.

Q: How does the integrated EMI filtering impact system integration?

A: The filtering stage is designed to suppress high-frequency noise generated during the switching process. This minimizes the risk of signal degradation on neighboring analog input modules or high-speed data communication lines.

Field Installation Guidelines

• Chassis Mounting: Secure the module to the control panel using the provided mounting points. The 4.51 kg weight necessitates a rigid chassis mount to ensure vibration resistance during machine operation.
• Thermal Considerations: Maintain clear airflow around the unit to facilitate convective heat dissipation. Do not install the power supply directly above or below high-heat-generating components such as motor starters or drives.
• Wiring and Grounding: Use appropriately rated gauge wire for the input and output terminals. Ensure a low-impedance connection to the cabinet's protective earth ground to effectively utilize the integrated EMI filtering and ensure safety compliance.
• Input Voltage Verification: Before applying power, verify that the input source falls within the 24-72 VDC range. Confirm polarity at the input terminals to avoid internal circuit protection triggers.