Motor starter MS18-0.4A 004600342

Motor starter – reliable protection for motors and installations

This three-pole ETI MS18-0.4A motor starter is a key element in protecting electric motors in installations with a voltage of 230…690V. It provides effective protection against overload and short circuit, and also offers additional functions to increase safety and comfort of use. It is a solid device designed for permanent installation, ideal for both professional installers and end-users who care about the safety of their equipment.

Functionality and application

The MS18-0.4A starter is designed to start electric motors and provide their reliable protection. It can also be used as a main or emergency switch in electrical circuits. Its compact design and DIN rail mounting method facilitate installation and integration with existing infrastructure. Thanks to its phase failure sensitivity, the starter protects the motor from damage caused by voltage asymmetry.

• Thermal protection: built-in thermal release protects the motor from overheating, which extends its lifespan.
• Short-circuit protection: quick reaction to a short circuit minimizes the risk of damage to the motor and installation.
• Phase failure sensitivity: prevents the motor from running with a missing phase, which could lead to serious failures.
• Setting range: the ability to precisely adjust the overload release setting range (0.25…0.4 A) allows for optimal adaptation to the load characteristics.
• Frame terminals: facilitate connection of wires and ensure a secure electrical connection.

Technical characteristics and parameters

The MS18-0.4A starter is characterized by high reliability and durability. The rated continuous current of 0.4 A allows for safe operation with motors up to 0.09 kW (AC-3 at 400 V). High short-circuit capacity (50 kA at 400 V AC) ensures effective protection in the event of a short circuit. The IP20 degree of protection means that the device is intended for use indoors, in dry places not exposed to direct atmospheric influences.

This starter has a rated continuous current of 0.4 A, operates at a voltage of 230…690 V, and the overload release setting range is 0.25…0.4 A. The rated short-circuit capacity at 400 V AC is 50 kA. The device is three-pole, has a degree of protection IP20 and a thermal-magnetic tripping method.

ETI Polam is a renowned manufacturer of modular equipment that has enjoyed the trust of professionals in the electrical industry for years. By choosing ETI products, you are guaranteed high quality workmanship and reliable operation.