Modular contactor SM 340 40A 24V 4NO with actuator 412518

Modular contactor 40A 24V with actuator – reliable circuit control

This modular contactor from the SM 300 series by Legrand is a solid solution for controlling electrical circuits. Designed to operate at 24V AC, it provides reliable switching of loads with a maximum current of 40A. It has as many as four normally open contacts (4NO), which provides great flexibility in circuit configuration. An additional actuator facilitates manual control, which is particularly useful during testing, maintenance or automation failures.

Construction and application

This contactor occupies 3 modules in width, which allows for easy mounting in electrical distribution boards. The rated operating voltage is 400V AC, and the control voltage is 20-26V AC. This makes it suitable for a wide range of applications in electrical installations in residential, commercial and industrial buildings. The possibility of additional equipment expands the functionality of the device, allowing it to be adapted to the specific needs of the installation.

• Versatile application: ideal for controlling lighting, electric heaters, motors and other electrical devices.
• Easy installation: modular design simplifies installation in standard distribution boards.
• Safety: IP2X protection degree provides basic protection against contact and ingress of solid objects.
• High switching capacity: allows handling of various loads – incandescent bulbs (up to 5000W), fluorescent lamps (up to 3100VA) and fluorescent lamps with compensation (up to 3400VA).
• Actuator: allows manual switching of the contactor on and off, which facilitates diagnostics and servicing of the installation.

Parameters for professionals

The SM 340 contactor is characterized by high quality and durability. The mounting depth is 44 mm. The rated operating current is 40A, which guarantees safe and efficient operation of the device even under high loads. The type of power supply and control voltage is AC (alternating current). The construction of the contactor provides good resistance to environmental conditions typical of electrical installations.