EATON Q-504A (IQ504A) Current Monitoring Relay

Overview

The EATON Q-504A, also catalogued as IQ504A, is a current monitoring relay from the IQ500 series, designed for industrial applications requiring reliable overcurrent and undercurrent protection. This panel-mount device features plug-in terminals for easy installation and maintenance. It monitors AC currents in motors, pumps, compressors, and other industrial equipment, providing adjustable trip points to prevent damage from overloads or phase loss conditions.

Key Features

• Adjustable current monitoring range: 10.8A to 207A, covering a wide variety of motor and load applications

• Panel mount design with plug-in terminals for simplified wiring and quick replacement

• 120VAC supply voltage, suitable for standard industrial control circuits

• Part of the EATON IQ500 series, known for reliable performance in industrial environments

• Compact form factor for installation in control panels with limited space

• Designed for overcurrent and undercurrent protection, enhancing equipment longevity

Technical Specifications

• Product Series: IQ500 Series

• Monitoring Range Minimum: 10.8A

• Monitoring Range Maximum: 207A

• Supply Voltage Maximum: 120VAC

• Relay Mounting: Panel Mount

• Relay Terminals: Plug-In Type

• SVHC Status: No SVHC (per latest regulations) 

Applications

The EATON Q-504A is widely used in industrial automation, HVAC systems, pumping stations, and material handling equipment. It provides essential protection for AC motors by monitoring current draw and triggering alarms or shutdowns when abnormal conditions occur. The adjustable range allows precise configuration for specific motor full-load currents, ensuring optimal protection without nuisance trips.

Certifications and Compliance

This current monitoring relay complies with applicable industrial standards for safety and performance. It is designed for use in control panels and industrial environments where reliable current sensing is critical. RoHS compliance status should be verified per specific manufacturing date.

Installation and Configuration

The plug-in terminal design allows the Q-504A to be easily installed or replaced without disturbing panel wiring. The current threshold is adjustable via onboard potentiometers, enabling field configuration to match specific motor nameplate ratings. The relay output can be wired to alarm systems, PLC inputs, or motor starter control circuits.