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Current monitoring relay DZB-1

Short Description:

  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product Tags


    Motor protection relay, Current detection relay

    Do You Face These Problems?

    1. Alarms do not occur before equipment is damaged.

    2. Protection is necessary because of poor power supply quality


    3. The motor is often burnt out for default phase, which produces high maintenance cost.

    4.The crane motor is often burnt out for overload, which interrupts the production plan and takes too much time to disassemble and assemble.

    5. The frequently started compressor and the short-circuit contactor cause default phase or phase imbalance which leads to shutdown of the equipment and thus affecting the delivery time.

    6. The water pump often idles and drily turns which cause burnout of the motor, bringing many complaints about the quality of the pump from customers.

    7. The equipment goes wrong at midnight and then works properly when you are about to test the problem, making it hard to find out the cause and completely solve the problem.

    8. When using the motor protector or the thermal overload relay made by another manufacturer, the motor is still burnt out because of its slow response and ineffective for protection.

    9. It’s hard to select correct protectors for too many different sizes of motors, while short of the specific motor you need because of limited inventory, resulting into unduly used resources. This also annoys installers who have to take too much time looking for the corresponding size and model.

    10. The motor starts with high current which may lead to false operation of the protector.

    Company Profile

    Business Type: Manufacturer/Factory & Trading Company

    Main Products:  Phase-sequence  Relay,Motor Protector Relay,digit ammeter/voltmeter,Lightning Surge Protector,Compressor temperature controller

    Management System Certification: ISO 9000

    Location: Zhejiang, China (Mainland)

    Basic Info

    Place of Origin: Zhejiang, China (Mainland)

    Model Number: DZB

    Theory: Current Relay

    Usage: Protective

    Size: Miniature

    Protect Feature: Sealed

    Contact Load: High Power

    Monitoring Function: Over&under current, locked rotor, phase loss, Over& Undervoltage

    Features: Intergrative structure

    Indicators: LED CODE & Lamps

    Rated Voltage: AC220V AC380V

    Output Contact: 1C/O for trip, 1C/O for alert

    Contact Capacity: 3A 380VAC

    Mounting: Panel & Screw Fixing

    Certifications: CE ROHS ISO9000

    Guarantee: 18months

    MOQ: 1PCS

    Product Details

    3.1 Key Specifications/Special Features

    Technical data 

    Type DZB
    Rated voltage 220VAC,380VAC,50/60HZ
    Current range 1-10A,5-50A,10-100A,80-200A200-400A,400-600A,600-800A
    Proective functions locked-rotor,overcurrent, undervurrent,phase loss,phase unbalance,overvoltage,undervoltage,
    Optional functions RS-485 communication port4-20mA  analog output
    indicators LED indicating voltage,current,operation status
    Output contacts 1C/O for trip1C/O for alert
    Contact capacity 3A 380VAC
    Dimensions(H*W*D) 118*54*135mm
    Mounting Screw fixing


      – Integrative structure

      – Built-in LED and keypad afford a precise,digital setting

      – Three-phase monitoring of short-circuit, locked-rotor,overcurrent, undervurrent, phase loss, phase unbalance,overvoltage,undervoltage

      – Earth fault (should couple with ZCT) 

      – Fault recording 

      – RS-485 communication port (optional) 

      – 4-20 mA analog output (optional)  

      – 2 C/O output contacts, one for trip,one for alert

    Protective Functions

      – Short-circuit

      – Locked-rotor

      – Overcurrent

      – Undercurrent 

      – Phase loss

      – Phase unbalance 

      – Overvoltage 

      – Undervoltage

    Typical Applications

        • Pumps     • Fans

        • Blowers    • Motors

        • Compressors


    • CE   • ROHS

    Main Export Markets

    Asia                                  Australasia

    Eastern Europe                  Mid East/Africa

    North America                    Western Europe

    Central/South America

    Packaging & Shippment

    Packaging & Delivery:

    Packaging Details:

    Voltage relay is standard seaworthy package,

    1pcs individual box or 5pcs in a middle box,

    20pcs per carton.

    Base quotation is blank package.

    OEM design is acceptable.

    Delivery Time 1-35days, according to order quantity.

    Payment & Delivery

    Our Payment term is T/T, Aliexpress, Western Union, PayPal, Money Gram, L/C at sight.

    Delivery Details: within 30-50days after confirming the order

    Primary Competitive Advantage

    Small Orders Accepted            Brand-name Parts       Country of Origin                          

    Distributorships Offered            Electronic Link            Experienced Staff

    Form A                                   Green Product            Guarantee/Warranty

    International Approvals             Military Specifications           Packaging

    Price                                      Product Features               Product Performance

    Prompt Delivery                      Quality Approvals               Reputation

    Service                                  Sample Available              Frequency Customized

    Product price: Affordable

    Product Delivery: Fast

    After-sales service: guaranteed

    Product quality: reliable

    Communication efficiency: fast


    Transport Safety: Guaranteed

    Logistics price: cheap

    Transport time: fast


    Variety range: complete

    Company reputation: good, excellent,

    Same version of product: inspection payment

    Audit factory requirements: OK



    1.Can you supply the sample before real order?

     – Yes, Samples are no problem. 



    2. Can you custom-made products for us as our samples?

     – Yes, Our engineer will it for you.



    3. What advantages do you have?

     –:. Cixi Feinade Electrical Appliance Plant are the direct Manufacturer in ningbo China, we have professional developing, marketing & production team to offer you the most competitive price and best service.


    4. What’s your main product?

     –:.We are 100% focus on Automation Products Voltge Monitoring Relay, Motor Protection Relay, volt-ammeters, surge protector, temperature controllers.


    5. Could you print our own logo?

     –.:Yes, Our company are available for Retail & Wholesale & OEM & ODM. 


    6. How long is the quality guarantee?

     – 18 month warranty, our products are 100% inspection.


    7 How long is the deliver time?

     – : It usually takes about 3 – 5 working days for sample order and 10 – 35 days for big order.


    8. What is your payment terms?

    –. Our Payment term is T/T, Aliexpress, Western Union, PayPal, Money Gram, L/C at sight.



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