Modular contactors and traditional contactors are both essential components in electrical control systems. However, they differ in several key aspects, including size, energy efficiency, load capacity, noise level, and cost.


Size and Energy Efficiency

Modular contactors are significantly smaller than traditional contactors, offering a 70% reduction in volume. This compact design makes them ideal for applications where space is limited. Additionally, modular contactors are more energy efficient, consuming up to 70% less energy than traditional contactors. This translates to lower operating costs and a reduced environmental impact.

Load Capacity

Modular contactors surpass traditional relays in terms of load capacity. They can handle heavier loads and are suitable for a wider range of electrical devices. This versatility makes them a more reliable choice for controlling diverse load types.

Noise Control

Modular contactors operate with exceptional quietness, providing a significant advantage in noise-sensitive environments such as offices and hospitals. Their minimal noise generation ensures a peaceful and undisturbed atmosphere.


Modular contactors boast an extraordinary mechanical lifespan, exceeding 10,000,000 cycles. This far exceeds the lifespan of many traditional contactors, minimizing the need for frequent maintenance and replacements, thereby reducing overall maintenance costs.


Despite their numerous advantages, modular contactors do have some limitations, primarily related to cost.

  • Initial Cost: The initial investment in modular contactors is generally higher than that of traditional contactors and relays. This may be a consideration for budget-constrained applications.

  • Three-Phase Applications: In specific three-phase applications, modular contactors may have a higher price point compared to traditional contactors. This is a factor to consider for users controlling three-phase power.图片112



EMC series AC household contactors are mainly used in AC 50Hz (or 60Hz) circuits with rated working voltage up to 400V and rated working current up to 100A to control household appliances and low-inductive loads for similar purposes; It can also be used to control household motor loads, but the control power should be reduced accordingly.

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EMC series AC household contactors


Modular contactors represent a significant advancement in modern electrical control systems, offering superior efficiency, durability, and quiet operation. While their initial cost may be a factor in certain applications, their long-term benefits often outweigh the upfront investment. The choice between modular contactors and traditional contactors ultimately depends on the specific requirements and priorities of the application.