Motor starter switch M250 1NO/1NC (2.5A - 4A) 606827

Motor starter – reliable protection for electric motors

This M250 motor starter is a key element in protecting electrical installations powering motors. It provides effective protection against the effects of short circuits and overloads, protecting both the motor and the entire circuit. It is a complete device in a housing, ready for mounting on a TH35 rail. The lever design facilitates operation and allows for quick identification of the device status.

Functionality and technical parameters

The M250 starter combines thermal and magnetic functions, guaranteeing comprehensive protection. The thermal release reacts to long-term overloads, and the electromagnetic release – to sudden surge currents. This ensures that the motor is protected in various emergency situations. The rated continuous current (Iu) is 4A, and the setting range of the overload release is 2.5 - 4A. The short-circuit breaking capacity at 400V AC is as high as 6kA, providing a high level of safety. It is equipped with a 1NO/1NC auxiliary contact, which enables integration with control and signaling systems.

• Versatile application: ideal for protecting electric motors in various industrial and domestic applications.
• Fast reaction: thermomagnetic tripping method ensures a quick and effective response to overloads and short circuits.
• Easy installation: designed for mounting on a standard TH35 rail.
• Durable construction: made of high-quality materials, ensuring long life and reliable operation.
• Safety: IP3X protection degree protects against access to hazardous live parts.
• Signaling: equipped with a window for describing the installation, which facilitates identification of the circuit and quick intervention if necessary.
• Compliance with standards: meets the required safety standards, ensuring compliance with applicable regulations.

Characteristics and application

M250 starters are dedicated to protecting circuits powering electric motors, where significant overcurrents may occur during normal operation. Various versions of M250 starters are available – with only a thermal release (M 250 T) or electromagnetic release (M 250 M), as well as a combination of both (M 250). This particular model (M250 1Z/1R) has both a thermal and electromagnetic release, as well as a NO/NC auxiliary contact. The rated operating power for AC-3 is 7.5 kW at 400 V and 4.5 kW at 230 V, making it a suitable choice for a wide range of applications. The ability to operate in any position further increases its flexibility during installation.