3-pole circuit breaker PLSM-C40/3-MW 242478

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole circuit breaker from Eaton's PLSM series is a key element in protecting electrical circuits in residential and commercial buildings. Designed to protect against overloads and short circuits, it ensures safe use and long-term reliability. It is characterized by a high short-circuit breaking capacity, which minimizes the risk of damage in the event of a failure.

Functionality and technical parameters

The PLSM-C40/3-MW circuit breaker with a rated current of 40A is designed to operate in AC networks with a voltage of 400V and a frequency of 50-60Hz. Its C characteristic provides a delayed tripping response to short-term overloads, which is particularly important for devices with electric motors or other pulsed loads. The rated short-circuit breaking capacity is 10kA at 400V and 230V, guaranteeing effective protection of the installation. A width of 3 modules simplifies mounting in electrical distribution boards.

• Overload protection: Protects wires and devices from damage caused by excessive current draw.
• Short-circuit protection: Immediately interrupts the circuit in the event of a short circuit, minimizing the risk of fire and equipment damage.
• C characteristic: Ideal for circuits with receivers generating inrush currents (e.g. motors, transformers). Allows for momentary exceeding of the rated current without unnecessary tripping.
• Mounting: Easy mounting on TH35 rail (standard mounting rail in distribution boards).
• Durability: Made of high-quality materials, resistant to environmental conditions and mechanical damage.
• Compliance with standards: Meets the requirements of EN 60898 and IEC 60947-2 standards, ensuring safety and reliability.

Design and application

The PLSM-C40/3-MW circuit breaker has been designed with ease of installation and use in mind. Its compact dimensions allow for efficient use of space in the distribution board. The IP20 degree of protection provides protection against accidental contact and the ingress of solid objects larger than 12.5 mm. Designed for use in circuits with a conductor cross-section from 1 to 25 mm², both solid and stranded. The ambient operating temperature is in the range of -25°C to 75°C, which allows its use in various environmental conditions. The possibility of additional equipment allows the circuit breaker to be adapted to specific installation needs.