Direct starter unit, MSC-D-25-M25(230V50HZ) 283151

Motor starter – reliable start and protection

This starter, catalog number 283151, is a component designed for the direct starting of three-phase motors. It provides not only a smooth start but also comprehensive protection against overloads and short circuits. This is crucial for the efficient and safe operation of the electrical installation. The device is particularly useful in industrial applications where high reliability and durability are required.

Characteristics and application

The MSC-D-25-M25(230V50HZ) unit is designed to operate with motors up to 11 kW at 400 V AC and 5.5 kW at 230 V AC. The rated operating current is 21.7 A, and the overload release setting range is 20-25 A, allowing for precise adjustment to the load characteristics. The built-in short-circuit release provides a quick response in the event of dangerous short-circuit currents, minimizing the risk of equipment damage and hazards to people. Overload protection with temperature compensation further increases the reliability of operation in changing environmental conditions.

The device finds application in a wide range of applications, such as:

• Pumps
• Fans
• Compressors
• Conveyors
• Construction and agricultural machinery
• Industrial installations

Construction and user features

The starter is characterized by a compact design with dimensions of 45 x 228 x 123.4 mm. The connection of the main contacts is made using screw connections, which ensures a secure and durable electrical connection. The lack of a transformer and support for only 230V AC (50Hz) simplifies installation and reduces costs. The IP00 protection class indicates that the device is intended for mounting in enclosures providing adequate protection against environmental influences. Release class 10A and coordination according to IEC 60947-4-3 (class 2) guarantee high selectivity and effectiveness of electrical installation protection. The rated conditional short-circuit current at 50000 A (for voltages of 400V and 230V) demonstrates high resistance to current surges during short circuits. The inability to mount on a rail requires the use of an appropriate enclosure or mounting panel.