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  • New item   LC1K Contactor | 4P | 4NO Contacts | AC-1 20A | Up to 440V | 230VAC Coil | For Electric Motors and Control Circuits
    New item   LC1K Contactor | 4P | 4NO Contacts | AC-1 20A | Up to 440V | 230VAC Coil | For Electric Motors and Control Circuits 1

    LC1K Contactor | 4P | 4NO Contacts | AC-1 20A | Up to 440V | 230VAC Coil | For Electric Motors and Control Circuits

    Code: LC1K09004P7
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    Price 19.99 € VAT incl.
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    Compact TeSys K series four-pole contactor with 4 normally open contacts (4NO), designed for switching electrical circuits on and off. The contactor can be used for AC-1 category loads up to 20 A at voltages of up to 440 V AC, and is controlled by a 230 V AC coil. 
  • Product description

    LC1K Contactor – 4P, 4NO, AC-1 20A, up to 440V, 230VAC Coil

    A compact TeSys K series 4-pole contactor with 4 normally open contacts (4NO), designed for switching electrical circuits on and off. The contactor is suitable for AC-1 category loads up to 20A at voltages up to 440V AC, featuring a 230VAC coil for control.

    Key Concept:
    This contactor is designed for applications where you need to remotely control four electrical circuits simultaneously or reliably switch a 4-pole load using a 230VAC control signal. Due to its 4NO contacts, it is particularly suitable for heating, lighting, automation, ventilation, and other AC-1 category circuits.
    Number of Poles
    4P
    Contact Type
    4NO
    Rated AC-1 Current
    20 A
    Coil Voltage
    230VAC

    Operating Principle

    The contactor is operated via its electromagnetic coil. When 230VAC voltage is applied to the coil, the contactor engages and closes all four normally open contacts. In this way, the connected load receives power.

    When the control voltage is disconnected from the coil, the contactor returns to its initial state, and all four contacts open. This allows for safe and convenient load control via switches, relays, timers, PLC controllers, thermostats, or other automation devices.

    What do 4P and 4NO mean?
    4P means the contactor has four independently controllable poles. 4NO means all four contacts are normally open – they are disconnected when there is no voltage in the coil and close when the coil is energized.

    Technical Specifications

    Product Series TeSys K
    Model / Code LC1K09004P7
    Product Type Electromagnetic Contactor
    Number of Poles 4P
    Main Contact Configuration 4NO – Four Normally Open contacts
    Utilization Category AC-1
    Rated Current (AC-1) 20 A
    Maximum Operating Voltage Up to 440V AC
    Coil Control Voltage 230VAC
    Weight 0.18 kg

    Where is it used?

    • Lighting control systems – for switching larger groups of lighting on and off.
    • Heating systems – for controlling electric heating elements or other resistive loads.
    • Ventilation and climate control systems – for control and power circuits where the load meets the AC-1 category.
    • Automation panels – as an intermediate power contactor between the controller and the load.
    • Industrial and commercial electrical installations – for 4-pole circuit management.
    • Building automation – for control via timers, thermostats, relay outputs, or PLC systems.

    Practical Installation Example

    For example, the contactor can be used in an automation panel to switch four lighting or heating circuits with a single control signal. A control switch, timer, thermostat, or PLC relay output provides 230VAC voltage to the contactor's coil.

    Once the coil is energized, all four NO contacts close and supply power to the connected load. When the coil control voltage is cut, the contacts open, and the load is switched off.

    Usage by Professionals

    Electrician: A compact contactor designed for installation in automation or distribution panels when a 4-pole switching element with a 230VAC coil is required.

    Engineer / Designer: A suitable solution for designing lighting, heating, ventilation, or other AC-1 category load control circuits that require four normally open poles.

    Automation Specialist: Can be used as a power circuit control contactor, where the coil is triggered by a 230VAC control output, relay, timer, or other control signals.

    Pros

    • 4 Normally Open contacts – allows controlling four circuits simultaneously.
    • 20A in AC-1 category – suitable for resistive and other AC-1 loads.
    • 230VAC coil – convenient control from standard 230V automation circuits.
    • Up to 440V AC – fits various low-voltage electrical systems.
    • Compact design – space-saving in electrical and automation panels.
    • TeSys K series – professional product line designed for automation and control.
    • Lightweight – only 0.18 kg.

    Cons / Limitations

    • AC-1 20A rating applies to specific usage categories; always check technical parameters before connecting other loads.
    • 230VAC coil – requires a specific 230V AC control signal.
    • 4NO contacts – does not include normally closed main contacts.
    • For motor control, separate AC-3 category current ratings and specific motor parameters must be evaluated.
    • Additional accessories, protection devices, or auxiliary contacts may be needed depending on the control scheme.

    Safety and Installation Notes

    The contactor is an electrical control device; its selection and wiring must be performed after evaluating the specific load, usage category, mains voltage, protection device parameters, and control scheme.

    • Installation must be performed by a qualified electrician in compliance with electrical safety regulations.
    • Always disconnect power and verify no voltage is present before installation.
    • Coil voltage must be 230VAC – do not connect to incorrect control voltage.
    • The 20A current is specified for AC-1 category; for inductive loads, motors, or transformers, other manufacturer parameters must be verified.
    • Conductor cross-sections and protection devices must be selected according to the actual load and installation conditions.
    • The contactor should be installed in a suitable enclosure, protected from dust, moisture, and mechanical damage if the environment requires it.

    Quick Selection Guide

    This contactor is suitable when you need a 4-pole unit with 4 normally open contacts, a 230VAC coil, and a 20A AC-1 current rating. It can be used for lighting, heating, automation, and other appropriately selected electrical circuits.

    Contacts
    4NO
    Poles
    4P
    Rated Current
    20A AC-1
    Coil
    230VAC
    Suitable when you need:
    • to switch four electrical circuits simultaneously;
    • a 4P contactor with 4 normally open contacts;
    • a 230VAC control coil;
    • a contactor for lighting, heating, or automation;
    • an AC-1 category load up to 20A.
    Check before installation:
    • is your control voltage 230VAC;
    • do you require four normally open contacts;
    • is the load within the AC-1 category;
    • are current and voltage limits respected;
    • are additional protective devices or relays required for the scheme.
    Important Reminder:
    The 20A rating applies to the AC-1 category. If the contactor is used for motors, transformers, fans, or other inductive loads, you must select the device based on the appropriate utilization category and the specific load type.

    FAQ – Frequently Asked Questions

    What is a 4P contactor?
    4P means the contactor has four poles, allowing it to control four separate electrical circuits or four lines of the same system simultaneously.
    What does 4NO mean?
    It means the contactor has four normally open contacts. When the coil is not energized, all contacts are open. When the coil is energized, all four contacts close.
    What coil voltage is required?
    This model's coil is designed for 230VAC control voltage.
    Can the contactor be used for lighting control?
    Yes, it can be used for lighting circuits, provided that the load current, voltage, and usage conditions match the contactor's parameters.
    Is this contactor suitable for motor control?
    The AC-1 20A rating alone is not sufficient for motor control. You must verify suitability based on the AC-3 category, motor power, voltage, and starting conditions.
    What is the AC-1 usage category?
    The AC-1 category is generally used for non-inductive or slightly inductive loads, such as resistive heating elements or appropriately sized lighting circuits.

    Compact 4-pole contactor for automation and power control circuits

    A practical electromagnetic contactor with 4 normally open contacts, a 230VAC coil, and a 20A AC-1 current rating. It allows for convenient control of four electrical circuits via a single control signal.

    The contactor is suitable for lighting, heating, automation, and other appropriately selected electrical systems where reliable remote switching is required. Always evaluate the load type, current, voltage, and usage category before installation.

    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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