Circuit motor protector Legrand 3-pole 4 kW 6.3–10 A model 606809

The Legrand 3-pole motor protector model 606809 is designed to protect three-phase electric motors and associated wiring for installations up to 4 kW. This motor protection switch combines adjustable thermal and magnetic tripping to respond to overloads and short circuits, offering reliable disconnection of the motor circuit when predefined fault conditions occur. Its compact three-pole construction makes it suitable for mounting in control panels and motor starter assemblies where coordinated motor protection is required.

Advantages

The adjustable thermal-magnetic tripping range allows adaptation to a variety of motor ratings within 6.3–10 A, reducing the need for multiple fixed-value devices. Thermal protection provides dependable overload detection while the magnetic element ensures fast response to short-circuit events. The three-pole design protects all phases simultaneously to prevent phase imbalance damage. The device is compatible with standard control panel wiring practices and integrates with starter arrangements, enabling straightforward installation and maintenance.

Suitable for

• Protection of three-phase motors up to 4 kW
• Use in motor starter assemblies and control panels
• Overload and short-circuit protection in industrial and light-commercial machinery
• Applications requiring adjustable trip settings between 6.3 A and 10 A

Key specifications

• Poles: 3-pole configuration for three-phase circuits
• Motor power capacity: suitable for motors up to 4 kW
• Adjustable tripping range: 6.3–10 A (thermal-magnetic)
• Protection functions: thermal overload and magnetic short-circuit trip
• Mounting: intended for use in control panels and starter assemblies

How to use

Select the tripping current within the 6.3–10 A range to match the nominal current of the protected motor, taking into account service factor and starting currents. Install the device in the motor starter or control panel according to local wiring standards, ensuring all three phases pass through the poles. Verify proper auxiliary connections if the setup requires remote indication or interlocking. After installation, test the trip setting and manual operation to confirm correct function before placing the motor into normal service.

Usage recommendations

Ensure the selected trip setting corresponds to the motor nameplate current and operational conditions. Coordinate the protector with upstream and downstream protective devices for selective fault clearance. Regularly inspect terminal connections for tightness and signs of overheating, and perform functional tests at intervals consistent with site maintenance procedures.