Modular contactor SM 425 25A 24V 4NO 412510

Modular contactor – reliable load control

The SM 425 25A 24V 4NO modular contactor is an element designed to control various electrical receivers. It will work both in home installations and in commercial facilities where reliable switching on and off of the load is required. The device's construction allows for mounting on a TH35 rail, which simplifies and speeds up installation.

Functionality and application

This four-pole contactor with four normally open contacts (4NO) is ideal for controlling devices with higher power consumption, such as electric heating, lighting or pumps. A manual control slider allows for manual switching on and off of the circuit, which is useful during testing or maintenance of the installation. The rated operating voltage of 400…400V and current of 25A provide a wide range of applications.

Key features and benefits

• High switching capacity: The maximum switching capacity for incandescent lamps is 3000 W, and for fluorescent lamps – up to 2200 VA (with DUO compensation), which allows for controlling various types of lighting.
• Universal control voltage: Adapted to work with an AC control voltage in the range of 20…26V.
• Compact dimensions: A width of only 2 modules (35.6 mm) makes it easy to mount in switchboards with limited space.
• Safety: Protection class IP2X provides basic protection against contact and ingress of solid objects.
• Expandability: Allows connection of additional accessories, increasing the functionality of the device.
• Durable construction: Made of high-quality materials guarantees long life and reliable operation.

Technical parameters in practice

The rated operating current of 25A allows for safe loading of the device, and the rated operating voltage of 400…400V ensures compatibility with most electrical installations. It has four normally open contacts, which allows you to control multiple circuits simultaneously. The maximum switching capacity for incandescent lamps is 3000 W, and the compact width of only 2 modules makes it easy to install in tight spaces.

The SM 425 contactor is a solid and versatile solution for professionals and end-users looking for a reliable element for controlling electrical loads.