GE CR306G004XBNA

Product Overview

The GE CR306G004XBNA is a NEMA magnetic motor starter from the GE CR306 300-Line series. It is designed for full-voltage starting and stopping of three-phase motors in industrial electrical systems.

This model features a three-pole contactor, an encapsulated electromagnetic coil, and a three-leg thermal overload relay. Together, these components provide motor switching and overload protection across all three phases. Its open construction makes it suitable for installation in compatible control panels and motor control assemblies.

Technical Specifications

Parameter	Description
Brand	GE
Model	CR306G004XBNA
Product Type	Magnetic Motor Starter
Series	CR306 / 300-Line
NEMA Size	5
Number of Poles	3
Coil Voltage	460–480 VAC
Frequency	50/60 Hz
Current Rating	270 A
Maximum Voltage	600 VAC
Enclosure	Open
Overload Protection	Three-Leg Thermal
Reset Type	Manual

Key Features

• Full-voltage magnetic motor starting.

• Three-pole switching for three-phase motor applications.

• Encapsulated coil design.

• Thermal overload protection across all phases.

• Manual overload reset with visual trip indication.

• Designed for industrial motor control systems.

Internal Structure

The starter consists of an electromagnetic contactor, operating coil, main contacts, overload relay, and connection terminals. When the control circuit energizes the coil, the contactor closes its main contacts and supplies power to the connected motor.

If an overload condition occurs, the thermal overload relay activates its trip mechanism and interrupts the control circuit. This helps reduce the risk of motor damage caused by sustained excessive current.

Typical Applications

• Industrial motor control centers.

• Manufacturing production lines.

• Pumps and compressors.

• Industrial ventilation systems.

• Electrical control panels.

• Three-phase machinery.

Installation and Maintenance

Before installation, verify the coil voltage, motor load, overload heater selection, and wiring arrangement. Ensure that the starter is installed in an appropriately rated enclosure when required.