Motor starter MS18-2.5A 004600346

Motor starter – reliable motor protection

This three-pole motor starter MS18-2.5A from ETI Polam is a key element in protecting electrical installations powering motors. It provides effective protection against overload and short circuit, protecting both the motor and the entire circuit. Its compact design and fixed mounting make it ideal for a variety of applications – from workshops, through industrial halls, to commercial buildings.

Characteristics and application

The MS18-2.5A starter is designed to protect motors with a power of up to 1.1 kW at 400V and 0.37 kW at 230V. The thermal-magnetic tripping method guarantees a quick reaction to sudden changes in current, and the overload trip setting range (1.6…2.5A) allows for precise adjustment to the load characteristics. Phase failure sensitivity further increases the safety of the installation. The rated short-circuit breaking capacity at 50 kA at 400V ensures high reliability in the event of a failure.

• Versatile application: ideal for protecting motors in various devices and machines.
• Overload protection: prevents damage to the motor caused by excessive load.
• Short-circuit protection: immediate disconnection of the circuit in the event of a short circuit minimizes the risk of fire and equipment damage.
• Phase failure sensitivity: protects the motor from operating in an incomplete circuit, which can lead to overheating and damage.
• Solid construction: fixed device mounting ensures stability and long-term operation.

Construction and mounting

The MS18-2.5A starter has frame terminals, which facilitates the connection of wires. The IP20 degree of protection provides protection against accidental contact, but does not protect against the effects of water or dust – therefore, it should be mounted in dry and well-ventilated places. The built-in thermal protection further increases the safety of using the device. The device is designed to operate in networks with a rated voltage of 230…690V, which makes it a universal solution for many electrical installations.