Control Relay For Time Relay Overvoltage And Undervoltage Adjustment Phase Sequence And Lack Of Phase Detection Display by LEDs

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$7.00 - $7.60 / Pieces | 10 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Multifunctional, Multifunctional
Product name:
Control Relay
Rated Voltage:
Rated Current:
Sample available
Rated frequency:
50/60 Hz
Supply Ability
Supply Ability:
20000 Piece/Pieces per Day control relay
Packaging & Delivery
Packaging Details
Standard export packing or packing as your requirements
Video Description

Digital Weekly Programmable Time Switch AC 220V DC Switch Timer In PA System



Product Description

1Potentionmeter for asymmetry thresshold adjustment 
2Time delay adjustment 
3Function selection
4Dispaly by LEDs
5Potentionmeter for overvoltage adjustment 
6Potentionmeter for undervoltage adjustment

A motor that continues to turn despite lass of a phase can regenerate a 

voltage.If this voltage exceeds the sensing threshold,the relay will not 

detect phase loss.

In this case,we recommend use of RM4 TA's.
These device have a fixed hysteresis of 50%.

"Hysteresis "here means the voltage difference(unbalance the closing 

and opening of the output relay(as a percentage of the preset unbalance threshold).

For example,with a 10% unbalance setting on a 400-V network
The relay opening threshold is:400-10%=360V
The relay closiong threshold is:360V+(50%x10%) of 360V=380V


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Q1:If I'm interested in your product when I can receive your quotation and detail information after send the enquiry?

A:All your enquiry will be replied in 24hours.


Q2:Can I get a sample before the order because I really don't how is your product quality?

A:Of course! We also think sample order is the best way to build the trust.And in our company we offer free sample service! Please send the enquiry to us and get the free sample!


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A:Yes, We have product catalogue. Please contact us on line or send an Email to sending the catalogue.


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A:We do not have a price list of all of our products. Because we have so many items, and it is impossible to mark all of their price on a list. And the price are always changing because of the producing cost. If you want to check any price of our products, please feel free to contact us. We will send offer to you soon!

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