Rated Voltage Adjustable Relay

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3 Phase Motor Protection Relay

The 3 Phase Motor Protection Relay is a circuit control element. It can break the contacts of switching appliances in time to protect the motor quickly and reliably when the main circuit of the motor is in abnormal working conditions such as phase break, overload, three-phase unbalance, etc.

Product Description

Introduction

The 3 Phase Motor Protection Relay is a circuit control element. It can break the contacts of switching appliances in time to protect the motor quickly and reliably when the main circuit of the motor is in abnormal working conditions such as phase break, overload, three-phase unbalance, etc. Our products are designed for rail mounting and are easy to operate. The 3 Phase Motor Protection Relay is available in a wide range of rated voltages with different specifications.

Features

The excellent quality of our 3 Phase Motor Protection Relay and warm and thoughtful service make us win the trust of customers. It is carefully designed with a small size to save space. Also, it is simple in structure, easy to use, and reliable in operation. And it has the advantages of no power consumption, long life, and no arc generation during operation, so it is an ideal electrical product for motor protection.

 

Model Selection Tale

Function code

Over-voltage

Under-voltage

Unbalance

Action delay

Phase sequence

Phase failure

Rated voltage adjustable

Reset delay

Output contacts

01

-

-

5~15%

0.1s~10s

0.1s~10s

Z

02

2~20%

-

-

0.1s~10s

-

0.1s~10s

Z

03

-

-20%~2%

-

0.1s~10s

-

0.1s~10s

Z

04

2~20%

-20%~2%

-

0.1s~10s

-

0.1s~10s

Z,C

05

2~20%

-20%~2%

-

0.1s~10s

0.1s~10s

Z

06

2~20%

-20%~2%

5~15%

0.1s~10s

-

0.1s~10s

Z

07

2~20%

-20%~2%

5~15%

0.1s~10s

0.1s~10s

Z

08

15%

-15%

-

2s

-

2s

Z

09

15%

-15%

-

2s

2s

Z

10

15%

-15%

8%

2s

-

2s

Z

11

15%

-15%

8%

2s

2s

Z

Technical Parameters

Rated supply voltage range

P-P: AC 3×208V→3×440V; P-N: AC 3×120→254V

Working voltage

P-P: AC 166V→528V; P-N: AC 96V→239V

Rated supply frequency

50/60Hz

Rated working voltage selection

M440:208-220-230-240-380-400-415-440(V)(P-P)
M254:120-127-132-138-220-230-240-254(V)(P-N)

Measuring range

AC 166V→528V; AC 96V→239V

Measurement frequency range

45Hz~65Hz

Threshold range

2%~20%

Unbalance threshold range

5%~15%

Fixed hysteresis rate

2%

Phase failure and phase sequence

<0.5s

Action delay range

0.1s~10s

Reset delay range

0.1s~10s

Measurement error

≤1%(Entire setting range)

Delay error

±10%+0.1s

Knob setting accuracy

1%Scale value

Rated insulation voltage

440V

Contact configuration capacity(A)

2C/O 8A;1C/O+C C/0 5A

IP Class

IP20

Class of pollution

Electrical Life

105

Mechanical life

106

Altitude

≤2000m

Allowable relative humidity

≤50%(40℃)(No condensation)

Use category

AC-15

Contact capacity

Ue/le:250V/1.5A

Output type

2C/O;1C/O+1C/0

DIN rail Standard

Width 35mm (IEC/EN60715)

Function Diagram

mtxx02

Wiring Diagram

mtxx03

Terminal diagram

mtxx04

Dimensions(mm)



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