GINRI MDB-501F LCD Display Overload Voltage Current Control Separate Motor Protection Relay with CT

Group Ginri Over Under Voltage Motor Protection Relay
PriceUS $37.8-39.02 / piece
Min. Order 1 piece
Terms of Payment L/C, Western Union, T/T, Paypal
Update Time 2020-09-18
Item specifics
Rated supply voltageAC220V,AC380V,50/60HZ
Current setting0.3-16A,3-160A,10-999A
Output typeTrip:1NO+1NC;Alarm:1NO
  • Description
  • Product review

GINRI MDB-501 Voltage Current Phase Monitor Earth Fault Overload  Control Motor Protection Relay


♦ Features

-- Compact modular size

-- Built-in LCD and keypad afford a precise,digital setting

-- Three-phase monitoring of short-circuit,locked-rotor,overcurrent, undercurrent, phase loss, phase unbalance,overload alarm

-- 1 or 2 phase monitoring of overvoltage,undervoltage

-- Earth fault (should couple with ZCT)

-- RS-485 communication port

-- DC4-20 mA analog output

-- Separated output contacts,two for trip,one for alarm

-- 4 LEDs for status indication

-- Fault recording with last 3 faults


 ♦ Protective Functions

-- Overload(Overcurrent)

-- Underload(Undercurrent)

-- Current Unbalance

--  Phase loss(Failure)

--  Current unbalance(Asymmetry)

--  Lock-rotor

--  Short circuit

--  Earth Fault

--  Overvoltage

--  Undervoltage


♦ Typical Applications

-- Pumps  -- Fans  -- Refrigeration Units  -- Blowers         

-- Motors  -- Compressors  -- Lifts,Elevators   

-- Cranes  -- Mining excavators and conveyors


♦ Technical data 





Power supply


current Range


Measurement Error


Time-current characteristic

Definite & Inverse selectable

Reset mode

Manual/Auto/Power cycle

RS-485 Protocol

Modbus RTU

Output type

Trip:1 NO+NC, Alarm: 1NO

Power consumption

≤ 5VA



contact capacity

5A 250VAC,3A 380VAC




Flush Mount

GINRI Selection Gu

♦ GINRI Selection Guide

relay list.jpg


♦ GINRI Packing


♦ GINRI Relay Family Photo






Q1. What advantages do you have?

A1. Ginri Power Automation are the direct Manufacturer in Wenzhou China from 1995, we have professional developing, marketing & production team to offer you the most competitive price and best service.

Q2. What’s your main product?

A2. We are 100% focus on Automation Products Voltge Monitoring Relay, Motor Protection Relay, Relay Modules, and Connector-Terminal Conversion Units.

Q3. Could you print our own logo?

A3. Yes, Our company are available for Retail & Wholesale & OEM & ODM.

Q4. How long is the quality guarantee?
A4. 18 month warranty, our products are 100% inspection.

Q5. How long is the deliver time?

A5. It usually takes about 3 - 5 working days for sample order and 10 - 25 days for big order.

Q6. What is your payment terms?
A6. Our Payment term is T/T, Aliexpress, Western Union, PayPal, Money Gram, L/C at sight.

Q7. How could I get your sample?

A7. You can request sample purchse through our alibaba trade assurance service.


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