Home ProductsMotor Protection Relay

Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz

Certification
Good quality Single Phase Voltage Monitoring Relay for sales
Good quality Single Phase Voltage Monitoring Relay for sales
Customer Reviews
Товар пришел оперативно и в срок.

—— Gleb Yalymov

Great Seller. Fast delivery.

—— Sergey Budilov

спасибо получил очень быстро

—— Djakhangir Chariev

good quality, better than taiwan brand Anley and JVM. Good communication with seller.

—— Robert Ong

I'm Online Chat Now

Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz

China Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz supplier
Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz supplier Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz supplier

Large Image :  Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz

Product Details:

Place of Origin: CHINA
Brand Name: GINRI
Certification: CE,CCC
Model Number: WDB-1FMT

Payment & Shipping Terms:

Minimum Order Quantity: 20Pcs
Packaging Details: Relay is standard seaworthy package,1pcs individual box or 5pcs in a middle box, 200pcs per carton. Base quotation is blank package. OEM design is acceptable.
Delivery Time: 1-30 days upon order quantity
Payment Terms: L/C, T/T, Western Union,Paypal
Supply Ability: 20000Pcs per month
Contact Now
Detailed Product Description
Indicators: LED Display,2LEDs Indicating Trip, Alert Output Type: 1 C/O For Trip,1 C/O For Alert
Working Conditions: -25 ~65 , 85%RH,non-condensing Operating Current Range: 1-10A,5-50A,10-100A,20-200A 80-400A,400-600A,600-800A
Overvoltage: 0-999V Overcurrent: 1-999A

Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz

 

Why need the 4-20mA analog output 

The 0-5V standard signal is not suitable for remote transmission, and does not meet the needs of 1-5V, 4-20mA input meters. This requires conversion, and the transmitter is one of the options for conversion. Transmitter becomes the middle bridge of signal conversion, electric protector can choose 4-20MA analog output, can make the signal transmission of protector more sensitive, thus improve the accuracy of protection

 

♦ Features
Integrative structure or Separate 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) unbalance,overvoltage,undervoltage , 2 C/O output contacts, one for trip,one for alert
 
♦ Protective Functions   Typical Applications
-- Short-circuit                            Pumps      
-- Locked-rotor              Fans
-- Overcurrent                                 Blowers
-- Undercurrent              Motors
-- Phase loss                                   Compressors
-- Phase unbalance
-- Overvoltage
-- Undervoltage
-- Ground fault

 

The reason maybe makes motor protector broken

In practical applications, there are many reasons that can cause the motor to burn down. It can be divided into the following categories:
(1) Motor overload caused by various reasons, the current is too large;
(2) Current imbalance caused by too low or high voltage, unbalanced phase, or lack of phase (including phase failure due to contactor failure);
(3) The return air pressure caused by refrigerant leakage or pipeline problems is too low, and the motor cooling is insufficient;
(4) damage to the winding insulation or high water content of the refrigerant, short circuit burned, etc. Theoretically, the overload protector can effectively cope with the first two conditions, while the thermal protector can cope with the first three conditions. The “short circuit” in the fourth case may be related to the quality or installation, or it may be related to the high water content of the metal chips or the refrigerant. In actual use, several situations may occur at the same time, and each other is a cause and effect. It may not be possible to use a brand-new compressor as a laboratory, and the problems are often simplified. The biggest limitations of currently used thermal protectors and overload protectors are that they cannot prevent all of the above-mentioned phenomena from happening. Therefore, the protection of the motor can only stay in the “cooling therapy” afterwards, that is, temporarily stopping the compressor. Cool naturally and then operate again. Thermal protectors and overload protectors do not have a limited number of pull-in times, and the motor is often burned in the "protection - operation - reprotect - rerun" cycle. For emergencies, such as winding insulation damage or short circuit caused by copper shavings, etc., the motor will be instantly burned at high temperature, and the thermal protector and overload protector will not react and cannot be protected.

 
 
♦ Technical data

Type WDZ-1Z WDZ-1F WDZ-1F2
Rated voltage 220VAC,380VAC ,50/60Hz
Current range 1-10A,5-50A,10-100A,20-200A,80-400A,400-600A,600-800A
Protective functions short-circuit, locked-rotor, overcurrent, undervurrent, phase loss, phase unbalance,overvoltage,undervoltage, earth fault
Optional functions

RS-485 communication port
4-20 mA analog output

Indicators LED indicating voltage,current,operation status
Output contacts 1 C/O for trip,1 C/O for alert
Contact capacity 3A 380VAC
Dimensions (H x W x D) 118×54×135mm 101×54×77mm(LED part) 101×54×77mm(LED part)
Mounting screw fixing LED part panel mounted and CT part screw fixing

LED part panel mounted
and CT part rail monting

 
 
 
 Voltage Monitoring 3 Phase Undervoltage Relay Screw Fixing Mounting 50/60 Hz
 
 
 
 
 
 
 
 
 
 
 

Contact Details
Wenzhou Ginri Power Automation Co., Ltd.

Contact Person: sales

Tel: +8613757785251

Send your inquiry directly to us (0 / 3000)