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    Electromagnetic Relay, 3PDT, 12/24/48/110/220V

    $45.51
    High power electromagnetic relay, contact form 3PDT (3NO and 3NC), coil voltage of 12V DC/ 24V DC/ 48V DC/ 24V AC/ 110V AC/ 220V AC for your choice, contact load 40A/ 30V DC 250V AC, 11 pins, plug-in terminals, compact and low price.
    SKU: ATO-EMR-38F
    *
    Free Shipping Worldwide
    Delivery date: 6-12 days

    Electromagnetic relay with 3NO + 3NC contact form, is widely applied in electronic equipment, communication equipment, automatic control system, instrument and meters, etc.

    Specification

    Basics Model ATO-JQX-38F (Relay with Socket)
    Dimension (L*W*H) 86×42×85mm
    Weight 30g
    Ambient Temperature -25℃~+55℃
    Terminal Type Plug-in
    Number of Pins 11
    Technical Parameters Contact Form 3PDT (3NO + 3NC)
    Contact Material Silver alloy
    Contact Capacity (Resistive load) 40A/30V DC, 40A/250V AC
    Coil Power DC 2.5W, AC 5VA
    Coil Voltage (Optional) 12V DC, 24V DC, 48V DC, 24V AC, 110V AC, 220V AC
    Pick-up Voltage at 23℃ ≤38.40V DC, 88V AC
    Drop-out Voltage at 23℃ ≤4.8V DC, 36V AC
    Contact Resistance @6V DC 1A ≤100MΩ
    Dielectric Strength Between open contact 1200V AC 50Hz/1min
    Between coil & contact 2500VAC 50Hz/1min
    Leakage current ≤1mA
    Insulation Resistance (MΩ) 1000MΩ at 500V DC

    Connection Diagram

    Connection Diagram of 3PDT 12/24/48V Electromagnetic Relay

    Dimensions Diagram (Units: mm)

    Dimensions Diagram of 3PDT 12/24/48V Electromagnetic Relay

    Tips: What rated voltage of the electromagnetic relay should be chosen?

    Electromagnetic relay is a kind of control relay which is used to increase the number of control loops or amplify signals. During operation, when the voltage of the coil reaches the specified value, the electromagnetic relay will operate. The contacts of the electromagnetic relay are prone to virtual connection fault, which often occurs during the operation of electrical control. It may not always appear, so this fault is difficult to judge. But when it does happen, it can lead to a major accident. This fault is caused by the change of the contact resistance of the control loop, which makes the actual voltage at both ends of the coil lower than 85% of the rated voltage, so that the circuit is out of control. However, what rated voltage of the electromagnetic relay should be chosen?

    • Try to avoid using low voltage below 12V as the control voltage, because in this low voltage circuit, the virtual contact fault is most likely to occur.
    • When the control circuit uses 24V as the control voltage, the parallel contact should be used to improve its working reliability.
    • When the control circuit must be controlled with low pressure, it is better to use 48V.
    • The control circuit had better use 110V and above voltage as the rated control voltage, which can effectively prevent the generation of virtual contact phenomenon.
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