Eaton PLSM-C20/3-MW Miniature Circuit Breaker, 3-Pole, C-Characteristic, 20A, 10kA

The Eaton PLSM-C20/3-MW is a professional-grade 3-pole miniature circuit breaker engineered to provide dependable protection for electrical circuits. With a rated current of 20A and a C-characteristic tripping curve, this device is specifically designed to handle moderate inrush currents, making it a versatile component for both residential and industrial power distribution networks. Its robust construction and 10kA breaking capacity ensure that it can effectively interrupt fault currents, thereby safeguarding connected equipment and wiring from the dangers of overloads and short circuits.

Advantages

This circuit breaker stands out due to its high reliability and precision in electrical fault detection. The C-characteristic ensures that the device does not trip unnecessarily during standard motor or lighting start-up phases, while still reacting instantly to genuine short-circuit conditions. Its compact 3-pole design allows for efficient space utilization in distribution boards, and the high breaking capacity provides an extra layer of safety in systems where higher fault currents might occur. The build quality reflects Eaton's commitment to long-term operational stability and safety in demanding electrical environments.

Suitable for

• Residential electrical distribution boards
• Commercial building power systems
• Industrial control panels
• Protection of lighting circuits with high inrush currents
• Motor control applications

When it may not be suitable

This device is not intended for use in DC electrical systems, as it is specifically designed for AC applications. Furthermore, it may not be appropriate for circuits requiring a different tripping characteristic, such as B-type for sensitive electronic equipment or D-type for heavy inductive loads with very high starting currents.

Key specifications

• Number of poles: 3
• Rated current: 20A
• Tripping characteristic: C
• Breaking capacity: 10kA
• Mounting type: DIN rail

How to use

The Eaton PLSM-C20/3-MW is designed for installation on a standard 35mm DIN rail within an electrical distribution enclosure. Installation should be performed by a qualified electrician in accordance with local electrical codes. The device features secure terminal connections that accommodate standard electrical wiring. Once mounted, the toggle switch allows for manual operation to disconnect or reconnect power to the protected circuit. Ensure that the supply voltage and load requirements are compatible with the device ratings before finalizing the installation.

What to consider before purchase

• Verify that the 20A rating matches the requirements of your specific circuit load.
• Ensure the 3-pole configuration is compatible with your three-phase power supply.
• Check that the available space in your distribution board is sufficient for a 3-pole module.
• Confirm that the C-characteristic is appropriate for the types of appliances or equipment being protected.

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to test the functionality of the device periodically to ensure the mechanism remains free and operational. Always disconnect the main power supply before performing any maintenance or wiring adjustments on the distribution board.