Allen-Bradley 825-PD Modular Motor Protection Controller

Description

Allen-Bradley 825-PD Modular Motor Protection Controller

Product Dimensions：

The Allen-Bradley 825-PD is a specialized Converter/Display Module belonging to the 825-P Modular Protection System. It is designed to work in conjunction with the 825-P motor protection relay to provide advanced sensing capabilities and a local interface for industrial motor management.

Product Detailed Description

The 825-PD serves as the bridge between the high-voltage/current motor environment and the control logic. It typically functions as a Portable Diagnostic or Programming tool or a Permanent Display/Converter interface. It allows operators to monitor motor status, configure protection parameters, and view fault history directly at the motor control center (MCC) bucket or control panel.

Technical Parameters

Product Advantages

• Enhanced Diagnostics: Provides real-time data on motor performance, including phase current, thermal capacity utilization, and ground fault levels.
• User-Friendly Interface: The multi-line display eliminates the need for complex “blink-code” troubleshooting, offering plain-text fault descriptions.
• Modular Versatility: As part of the 825-P system, it allows for “mix-and-match” configurations, ensuring you only pay for the protection features required for a specific motor.
• Secure Programming: Features password protection to prevent unauthorized changes to critical motor protection setpoints.

Important Considerations (Precautions)

• System Compatibility: The 825-PD must be paired with a compatible 825-P base relay. Ensure the firmware versions of the converter and the base unit are synchronized for full feature availability.
• Mounting Security: If panel-mounting the display, ensure the gasket is properly seated to maintain the NEMA 4/IP65 environmental seal against dust and moisture.
• Connection Distance: Use only the manufacturer-approved communication cables between the 825-PD and the base unit to avoid signal attenuation or electromagnetic interference (EMI).
• Configuration: Always backup the motor parameters before replacing a module or performing a factory reset.

Product Applications

The 825-PD is utilized in high-stakes motor control applications:

• Heavy Industry: Protection for large induction motors in mining, cement plants, and steel mills.
• Water/Wastewater: Monitoring submersible pumps and large aerators where thermal overload and dry-run protection are critical.
• Oil & Gas: Integrated into MCCs to protect pumps and compressors in hazardous or remote locations.
• Process Control: Providing local visualization for motors controlled by a centralized DCS or PLC via DeviceNet or EtherNet/IP (when combined with communication modules).

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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