AC power contactor LS Electric MC-330a 400VAC 2a2b MC-330A 400VAC 2A2B

LS Electric MC-330a power contactor is a robust component designed for reliable switching of electrical circuits. It is a key element in automation systems, power distribution boards, and motor controls. The contactor's design, based on proven solutions from LS Electric (formerly LG Industrial Systems), guarantees long-lasting and trouble-free operation even in demanding industrial conditions.

This model, designated MC-330a, is designed to operate at 400VAC and a rated current of 330A in AC3 category – meaning it is perfectly suited for applications involving frequent switching of inductive loads, such as electric motors. Equipped with a 2a2b contact configuration (two normally open and two normally closed auxiliary contacts) provides flexibility in building control and signaling circuits.

Construction and application

The MC-330a contactor is characterized by a durable construction and high-quality workmanship. Its solid main contacts ensure a secure connection even at high currents, minimizing the risk of overheating and damage. The contactor housing protects internal components from external factors such as dust, moisture, and corrosion. This allows the device to be used in both dry and humid industrial environments.

The wide range of applications includes:

• Control of high-power electric motors
• Switching heating loads on and off
• Industrial lighting systems
• Applications in power distribution boards
• Automation of production processes

Advantages and characteristic features

• High reliability: LS Electric contactors are known for their long mechanical life (up to 5 million cycles) and electrical life (up to 1 million cycles), which translates to minimal downtime and operating costs.
• Versatility: The possibility of mounting both on a DIN rail and with screws makes it easy to integrate the contactor with different types of installations.
• Safety: Compliance with applicable safety standards provides protection against overload, short circuit and other electrical hazards.
• Compact dimensions: Dimensions of 163x243x198 mm allow easy placement of the contactor even in tight distribution boards.
• Weight: 9.2 kg – indicates a solid construction of the device.
• Wide range of coil voltages: Availability of different coil voltages allows you to match the contactor to specific installation requirements. In this model, the coil operates at 400VAC.
• High power: Maximum connection power for 400VAC is 160kW, and for 220-230VAC – 90kW, making it an ideal solution for demanding industrial applications.