Circuit breaker 6kA PL6-D40/4 166551

Overcurrent circuit breaker – reliable protection for electrical installations

This four-pole overcurrent circuit breaker from Eaton, with a rated current of 40A and D characteristic, is a key element ensuring safety in every electrical installation. The rated breaking capacity of 6kA guarantees effective protection against the effects of overloads and short circuits. This circuit breaker is used both in home and industrial installations where high reliability and resistance to sudden load changes are required.

Features and application

The PL6-D40/4 circuit breaker has been designed with a wide range of applications in mind. The D characteristic makes it ideal for circuits with high inrush current – e.g. with devices equipped with electric motors, transformers or impulse power supplies. Thanks to this, the circuit breaker does not switch off unnecessarily during short-term current surges, which ensures the continuity of power supply to connected devices. A width of 4 modules makes it easy to mount in standard distribution boards.

• Overload protection: Protects the circuit from damage caused by excessive current draw.
• Short-circuit protection: Reacts quickly to a short circuit, disconnecting the circuit and minimizing the risk of fire or equipment damage.
• D characteristic: Allows for safe starting of devices with high inrush current without unnecessary tripping of the circuit breaker.
• Breaking capacity 6kA: Provides effective protection even in the event of serious failures.
• DIN rail mounting: Enables quick and easy mounting in standard distribution boards.
• Width 4 modules: Compact dimensions allow for optimal use of space in the distribution board.
• Rated voltage 230V / 400V: Versatility of use in various electrical installations.

Construction and technical parameters

The PL6-D40/4 circuit breaker is characterized by a solid construction and high quality workmanship. It has a degree of protection of IP20, which means protection against touching with a finger and against the ingress of solid objects larger than 12.5 mm. The cross-section of the connected single-wire or multi-wire cable up to 25mm² provides flexibility when selecting power cables. The ambient temperature in operating conditions from -25°C to 75°C guarantees reliable operation even in difficult environmental conditions. Energy limitation class 3 and surge category III demonstrate a high level of safety and resistance to interference. The rated impulse withstand voltage Uimp is 4kV, which further increases its resistance to transient overvoltages.