Eaton 3-Pole Motor Protection Circuit Breaker, 0.25kW, 0.63 - 1A, 189884

The Eaton 3-pole motor protection circuit breaker is a high-quality electrical component engineered to provide robust protection for motors with a power rating of 0.25kW. This device serves as a critical safeguard in industrial and commercial electrical installations, effectively monitoring current flow to prevent damage from electrical faults. By integrating both short-circuit and overload protection, it ensures the longevity and reliable performance of connected motor equipment.

Advantages

This motor protection circuit breaker offers precise control through its adjustable thermal release range of 0.63 to 1A, allowing for accurate calibration to the specific requirements of the motor. Its 3-pole design ensures comprehensive phase monitoring, which is essential for maintaining balanced electrical loads and preventing phase loss issues. The compact and durable construction facilitates easy integration into standard control panels, providing a space-efficient solution for complex electrical systems.

Suitable for

• Industrial motor control centers
• Commercial HVAC systems
• Automated manufacturing machinery
• Pump and fan control applications

When it may not be suitable

This device is specifically calibrated for motors with a power rating of 0.25kW and a current range between 0.63A and 1A. It is not suitable for applications requiring higher power ratings or current loads outside of this specified range, as it will not provide the necessary protection and may trip prematurely or fail to protect the equipment.

Key specifications

• Number of poles: 3
• Power rating: 0.25kW
• Thermal release range: 0.63 - 1A
• Function: Short-circuit and overload protection

How to use

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is typically mounted on a standard DIN rail within an electrical enclosure. Once mounted, connect the power supply lines to the input terminals and the motor leads to the output terminals. After installation, the thermal release must be adjusted to the specific nominal current of the motor using the adjustment dial on the front of the unit.

What to consider before purchase

• Verify the nominal current of your motor matches the 0.63 - 1A adjustment range.
• Ensure the power rating of 0.25kW is compatible with your application.
• Check available space in your control cabinet for DIN rail mounting.

Usage recommendations

Regularly inspect the circuit breaker for signs of wear or thermal damage. Test the tripping mechanism periodically to ensure the device remains responsive to overload conditions. Always disconnect power before performing any maintenance or adjustments to the unit.