Motor starter switch 2-pole Z-MS-0.40/2 248391

Motor starter – reliable motor protection

This two-pole Eaton Z-MS-0.40/2 motor starter is a key element in protecting electrical installations powering motors. It provides effective protection against overload and short circuit, minimizing the risk of damage and downtime. Compact dimensions (36 mm wide, 75 mm high and 80 mm deep) allow for easy installation in switchboards with limited space.

Functionality and application

The starter is designed to protect motors with a power of up to 0.09 kW at 400 V (AC-3). The overload release setting range (0.25 - 0.4 A) allows for precise adjustment to the load characteristics. The rated continuous current of 0.4 A guarantees stable operation of the device under normal operating conditions. The starter with a thermal-magnetic release characteristic reacts to both overloads and sudden increases in short-circuit current. This protects not only the motor but also the power supply cables.

Key features and benefits

• Thermal protection: Built-in thermal protection protects the motor from overheating, which extends its life and reduces the risk of failure.
• High short-circuit breaking capacity: The rated short-circuit breaking capacity Icu of 10 kA at 400 V ensures effective disconnection of the circuit in the event of a short circuit, minimizing potential damage.
• Solid construction: Made of high-quality materials, the starter is characterized by durability and reliability in harsh working conditions.
• Easy installation: Screw connection of the main contacts facilitates and speeds up installation.
• Safety: Meets the required safety standards (IP20), providing protection against accidental contact.
• Precise adjustment: The short-circuit release setting range (3.1 - 4.8 A) allows you to adjust the sensitivity to the specifics of the application.

Design and parameters

The starter has a two-pole design, which means it protects two phase conductors of the motor circuit. The type of actuator – lever – allows for quick manual disconnection of the device if necessary. The lack of an integrated auxiliary contact and undervoltage release makes it a solution dedicated to simple applications requiring basic motor protection. The device is complete and ready for mounting in a switchboard enclosure.