Motor starter 3+N poles. Z-MS-16/3N 105007

Motor switch for comprehensive drive protection

The Z-MS-16/3N motor switch is a professional protective device designed for installers and end users seeking reliable protection for electric motors. This model stands out due to its universal nature — it is suitable for both industrial applications and residential construction.

Key design features

The device is manufactured as a complete solution in an enclosure, which simplifies installation and eliminates the need for additional components. The lever as an actuator element ensures intuitive control and monitoring of the device's status.

The design provides 4 poles, enabling the handling of three-phase circuits with an additional neutral wire. The screw connection guarantees a secure and durable connection of wires, which is particularly important in applications requiring high reliability of electrical connections.

Operating parameters and application

The switch operates at a standard voltage of 400V and can handle loads up to a rated continuous current of 16A. The overload trip setting range of 10-16A allows for precise adjustment to the characteristics of a specific motor.

The device utilizes a magnetic tripping method, which ensures a rapid response to short circuits while maintaining appropriate selectivity of operation. The built-in thermal protection protects the drive from the harmful effects of current overload.

Operating conditions and mounting

The Z-MS-16/3N model is adapted for mounting on a standard 35mm DIN rail (DIN EN 50022), allowing for installation in typical electrical distribution boards. Compact dimensions (80×70.8×75mm) allow for economical use of space in the distribution board.

The IP20 protection rating provides basic protection against contact with live parts and against the ingress of solid objects larger than 12.5mm. The device maintains full functionality in an operating temperature from -25°C to +50°C, making it suitable for most typical industrial and commercial applications.

This switch represents an optimal choice for installers seeking universal protection for motors with a power of up to approximately 7.5kW at a voltage of 400V AC-3, while simultaneously offering ease of installation and the reliability characteristic of Eaton Electric brand products.