Products catalog

  • Intermediate electromagnetic relay | 12V DC | 2NO+2NC | mini | 12A | universal | LANBOO

    Code: ES-J13A3

    Intermediate relay designed for various control, automation, and protection systems. Due to its miniature size, sealed construction, and silver alloy contacts, this relay ensures stable operation even under demanding operating conditions. It is perfectly suitable for both industrial automation systems and smaller projects or household solutions where reliable signal or load control is required. 

  • Technical specifications

    Manufacturer: LANBOO
    Type: electromagnetic intermediate relay
    Contact configuration: 2NO + 2NC (changeover contact)
    Rated current: 12A
    Control voltage: 12V DC
    Operating voltage: up to 220V AC (through contacts)
    Contact material: silver alloy (high reliability)
    Contact load: for low / medium power circuits
    Terminal type: pin contacts
    Housing: PC plastic (temperature and impact resistant)
    Construction: sealed
    Color: orange
    Size: mini (compact)
    Mounting: socket / PCB / holder

    Functions

    Circuit switching – allows control of multiple circuits simultaneously
    Control and power separation – safe low-voltage control
    Universal application – suitable for various systems
    Sealed construction – protection against dust and environmental impact
    Compact design – saves space in the panel
    Easy installation – standard pin-type contacts

    Applications

    For home users: Home automation solutions (lighting, alarm systems), small DIY projects, control of device on/off switching
    For engineers / automation specialists: Switching of PLC and control system signals, intermediate control between circuits of different voltages, implementation of automation logic
    For electricians: Assembly of electrical panels, control of contactors or other devices, reliable solution for control circuits
    In industry: Production lines, control cabinets, alarm and protection systems

    Practical use

    In automation systems: The relay is used between PLCs, controllers or sensors and actuators, ensuring safe separation of control and power circuits
    In electrical panels: Used as an intermediate component in control circuits, helps reduce controller load and increases system reliability
    For lighting control: Suitable for automated or remote lighting control
    In ventilation, pump and heating systems: Used for automatic switching of devices based on signal
    In alarm and protection systems: The relay switches signals or activates warning devices, used in safety and alarm circuits
    In Smart Home and DIY projects: Widely used with microcontrollers and automation (irrigation, gates, lighting)

    Advantages

    Compact size (mini)
    Universal application
    2NO + 2NC contacts (high flexibility)
    Reliable silver alloy contacts
    Sealed construction (durability)
    Easy installation (plug-in)

    Disadvantages

    Designed for lower loads (not for high-power circuits)
    Mechanical wear during long-term intensive operation

    What type of relay is it?
    Electromagnetic intermediate mini relay, 2NO + 2NC (DPDT – double pole double throw), having two normally open (NO) and two normally closed (NC) contacts.

    Where is this relay used?
    Widely used for circuit control: in automation panels, PLC control systems, signal switching, control of contactors, DIY and Smart Home projects, lighting control, temperature and humidity control systems, as well as for controlling multiple higher-power loads simultaneously using low-current signals.

    What is the main function of the relay?
    Allows low control voltage to control higher loads and simultaneously switch multiple independent circuits, separating control and power circuits.

    How is it installed?
    Into a PCB board, into a socket / holder, using contact pins. 

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
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