Motor starter switch for starting circuit I=4A PKM0-4 072727

Motor protection circuit breakers – reliable protection for your installation

This three-pole motor protection circuit breaker PKM0-4, with a rated current of 4A, is a key element in protecting motors and starting systems. It provides effective protection against overloads and short circuits, guaranteeing safe and reliable operation of devices. The device's construction, compliant with IEC/EN60947 standards, makes it an ideal solution for both professional installers and end users.

Functionality and application

The PKM0-4 circuit breaker is characterized by a fast short-circuit release (62A) and the possibility of mounting on a TH35 rail. Its compact dimensions (76 mm depth, 45 mm width, 93 mm height) make installation easy even in tight spaces. Screw terminals ensure solid and reliable connection of wires. The device is designed to protect motors with a power of up to 1.5 kW at a voltage of 400V (AC-3). It is worth noting that this circuit breaker does not have a built-in thermal protection or auxiliary contact – which allows for flexible adaptation to specific application needs.

Key features and benefits

• Fast response to short circuits: The magnetic release characteristic ensures a rapid response to sudden current surges, minimizing the risk of damage to the motor and installation.
• Solid construction: The permanently mounted device, made of high-quality materials, guarantees long-lasting and trouble-free operation.
• Versatility: The rated operating voltage of 690V allows for use in a wide range of electrical installations.
• Safety: The degree of protection IP20 protects against accidental contact with live parts.
• Easy installation: Compact dimensions and screw terminals facilitate quick and easy installation.
• Compliance with standards: Meets the requirements of IEC/EN 60947 and VDE 0106 part 100 standards, confirming its safety and reliability.
• High short-circuit breaking capacity: The rated short-circuit breaking capacity Icu is as high as 150 kA at 400V AC – this guarantees effective protection in the event of serious disturbances in the network.
• Low power loss: Power losses are only 5.33W, which translates to energy efficiency of the system.

This circuit breaker offers a continuous rated current of 4A, and its ability to protect motors with a power of up to 1.5 kW at a voltage of 400V (AC-3) makes it an efficient solution for many applications. Short-circuit protection with characteristic C ensures a quick response in emergency situations, and the degree of protection IP20 guarantees safe use.

This motor protection circuit breaker is an investment in the safety and reliability of your electrical installation – both in industry, commercial and residential construction.