Electronic Motor Protection Relay

 

 

EMPR replacing thermal overload relay is electronic motor protection relay which is used to protect the low voltage motor. It is also called as Electronic Overcurrent Relay or an Electronic Overload Relay.

As a digital motor protection relay with MCU, EMPR is highly reliable by implementation of real- time data processing and high precision and also can secure motor safely with various functions such as phase loss, phase reverse, unbalanced, stall, lock, ground fault, short circuit protection depending on the model.

EMPR has compact and simple appearance so it can be combined with the magnetic contactor. Various installation methods and separation of terminal block make easy design and manufacturing feature for MCC(Motor Control Center). Especially, EMPR is EMC tested and approved to operate safely without any malfunction caused by electromagnetic wave and surge. Various models have received CE Mark and UL certification based on its product reliability.

 

Model

 

GMP22-2P/PD (1c)

GMP22- 2P(1a1b)

GMP22- 3P/3PR

 

GMP22-2S

GMP22- 3S/3SR

 

GMP22-2T

GMP22- 3T/3TR

Type

Pin type

Screw type

Tunnel type

No. of CT

2CT

2CT

3CT

2CT

3CT

2CT

3CT

Protection

Overcurrent

Phase failure Note1)

Lock/Stall

Phase unbalance

Reverse phase

●(3PR)

●(3SR)

●(3TR)

Current setting range (A)

0.3~1.5, 1~5, 4.4~22

Operating time characteristics

Inverse time (GMP22-2PD: Definite time)

Time setting (sec)

Inverse time

0~30 sec

Definite

D-time

0.2~60 sec for GMP22-2PD

O-time

5sec (Fixed) for GMP22-2PD

Reset-time

Manual reset

Tolerance

Current

±5%

Time

±5%(or±0.5sec)

Control power

Voltage

AC 110V/220V(±10%)

AC 100~260V

Frequency

50/60Hz

Aux. contact

Contact

1SPDT: 1c (N) Note 3)

2SPST (1a1b)

Ratings

5A/250VAC Resistive load

3A/250VAC Resistive load

Operate

(95     96 Close)

(95     96 Close)              (97     98 Open)

Insulation resistance

Min 100㏁ at 500Vdc

Surge endurance (IEC 61000-4-5)

5kV Apply the standard wave

Fast transient burst (IEC 61000-4-4)

2kV

Environment                            Operation

-25~70℃

Temperature

Storage

-30~80℃

Relative humidity

30~90%RH(No freezing)

Trip indicator

Red LED

Red/Green LED

Red LED

Red/Green LED

Red LED

Red/Green LED

Dimension (mm)                            W×H×D

44×71×78

53×78×87.5

53×68×87.5

53×38×87.5

Mounting type

Direct mount onto a Metasol MC (MC-9b-22b)

Separate mount (Screw or Din-rail) Note2)

Certification

UL, cUL, CE (Except GMP22-2PD type)

 

 

Model

GMP40- 2P/PD/PA

GMP40- 3P/3PR

 

GMP40-2S

GMP40- 3S/3SR

 

GMP40-2T

GMP40- 3T/3TR

GMP80- 2S/SA

GMP80- 3S/3SR

Type

Pin type *

Screw type

Tunnel type

Screw type

No. of CT

2CT

3CT

2CT

3CT

2CT

3CT

2CT

3CT

Protection

Overcurrent

Phase failure Note1)

Lock/Stall

Phase unbalance

Reverse phase

●(3PR)

●(3SR)

●(3TR)

●(3SR)

Current setting range(A)

4~20, 8~40

16~80

Operating time characteristics

Inverse time characteristics

Time setting (sec)

Inverse time

0~30 sec

Definite

D-time

0.2~60 sec (GMP40-2PD)

O-time

5sec (Fixed) (GMP40-2PD)

Reset time

Manual reset (Auto Reset type : GMP-A)

Tolerance

Current

±5%

Time

±5% (or±0.5 sec)

Control power         Voltage

AC 100~260V, 50/60Hz

Aux. contact

Contact Note2)

2SPST (1a1b)

Ratings

3A/250VAC Resistive load

Operate

(95     96 Close)             (97   98 Open)

Insulation resistance

Min 100㏁ at 500Vdc

Surge endurance (IEC 61000-4-5)

5kV Apply the standard wave

Fast transient burst (IEC 61000-4-4)

2kV

Environment Temperature

Operation

-25~70℃

Storage

-30~80℃

Relative humidity

30~90%RH (No freezing)

Trip indicator

Red LED

Red/Green LED

Red LED

Red/Green LED

Red LED

Red/Green LED

Red LED

2Red LEDs

Dimension(mm)       W×H×D

53×78×87.5

53×68×87.5

53×38×87.5

89×77.5×97.4

Mounting type

Direct mount onto a Metasol MC (MC-32a, 40a)

 

Separate mount (Screw or Din-rail)

Certification

UL, cUL, CE (Except GMP-PD, PA, SA type)