Circuit breaker PKE with electronic trip unit PKE12/XTU-12 121733

Motor starter PKE12/XTU-12 is a reliable protection for electric motors, combining compact dimensions with advanced features. The device is designed to protect against overload and short circuit, ensuring safe and efficient operation of the installation. Thanks to the use of an electronic trip unit, it offers precise adjustment of parameters to the specifics of the protected circuit.

Characteristics and application

The PKE12/XTU-12 starter finds application in a wide range of applications, from simple home installations to advanced industrial systems. It is ideal for anywhere where protection of three-phase motors up to 5.5 kW at 400V is required. The electronic trip unit allows for flexible setting of the trip class (5-20), which enables optimal adaptation to the motor starting characteristics – from easy to very difficult starts. This translates to minimizing the risk of unnecessary device shutdown during normal operation, while ensuring effective protection in the event of a failure.

Advantages and benefits

• Precise protection: The electronic trip unit provides accurate and fast response to overloads and short circuits, protecting the motor from damage.
• Flexibility of settings: The ability to adjust the overload trip setting range (3-12A) and select the trip class allows adaptation to different types of motors and loads.
• High short-circuit capacity: The rated short-circuit switching capacity Icu of 100 kA at 400 V AC guarantees effective disconnection of the circuit in the event of a short circuit.
• Phase failure sensitivity: The built-in phase failure detection function protects the motor from damage caused by voltage asymmetry.
• Compact dimensions: Dimensions of 45 x 102.5 x 101 mm facilitate mounting in tight spaces.
• Durable construction: The device made of high-quality materials ensures reliable operation for a long time.
• Safety: Compliance with safety standards guarantees safe operation of the device.

Construction and mounting

The PKE12/XTU-12 starter is a permanently mounted device, designed for mounting on a DIN rail. The connection of the main contacts is made using screw connections, which ensures a secure and durable electrical connection. It is important to properly select the XTU-12 trip unit, which is an integral part of the entire protection system – the selection should take into account the motor rated current and its starting characteristics. The use of a knob facilitates operation and adjustment of the device.