Electronic type B earth leakage current protection and monitoring relay. Associated toexternal core balance transformer the . It has 2 programmables outputsyCTB-1/xxx familrelays. Main trip and prealarm signal. It has one free voltage input for external TRIP/RESET.Mounting in DIN rail 466277 (EN 50022) or PANEL 72x72 by means of accesories .3EDA03Displays setting values and instantaneus earth leakage current value.

GENERAL DESCRIPTION

PRELIMINARY CONSIDERATIONS

INSTALLATION AND START-UP

IMPORTANT !

!

Tripping delay (s)Sensivity (A)Typecode

CHECKS ON RECEPTIONOn receving the instrument, check the following points:

You can download more information from Contrel Elettronica website, www.contrel.it

SAFETY PRECAUTIONS

warning included in the instruction manual.

green LED (ON) when it is operation and, therefore, it shows that there is voltage and

The user must take into account and observe the informations and warnings included inthis instruction manual to guarantee the correct operation of the equipment and comply

the electrical panel.

Disconnect the equipment from the power supply when the unit´s safety protectionsystems are not working or there are signs of a problem (in case of visible damage).

INSTALLING THE EQUIPMENT

Wheight : 168 gr

52,5

85

45

43,5

67,9

Fixed by rail DIN 46277 (EN 50022)

dimensions in mm.

Rated current: 10 Ac.a.

Rated voltage: 250 Vc.a.

Rated Load: 2.500 V·A

8 91 2 4 5 6

10 11 13 14 15

Reset

Test

ELR-3B Residual Current device and Monitor type B

RG

U-

10

C

3 Not used4 Pre-alarm output relay common5 Pre-alarm output relay, NC6 Pre-alarm output relay, NA

7 Not used

8 Input Current sensor 1S29 Input Current sensor 1S1

10 Power Supply (L - 230 Vac or +/-24÷125Vdc)

11 Power supply (N - 230 Vac or +/-24÷125Vdc)

12 Not used

Optocoupled, 0.7W /230 Vac ± 20%

Rated current: 10 Ac.a.

Rated voltage: 250 Vc.a.

Rated Load: 2.500 V·A

ELR-3B

TECHNICAL FEATURES

- Reclosing type: Manual via RESET button or by cutting power supply.

- Rated power supply voltage: 230 ( 20%) 50/60 Hz, 6 VA±- : -10ºC / +50ºCOperating temperature- Humidity (without condensation) : 5% .... 95%- IP ProtectionAssembled equipment (front) : IP 41Non assembled equipment (sides and rear cove) : IP 20

- Maximum operating height : 2000 m.

- :Connections2

0,127 - 2,082 mmPermissible cable section:Recommended tightening torque: 0.5-0.6 NmLength of cable to strip: 7 mmRecommended screwdrivers length: Bar 0.4 x 2.5 x 80 mm, 160 mm

- 13-14-15 and 4-5-6Switch Output contact features: 10 / 15 A a.c.Rated current/Maximum instant current

: 250 / 400 V a.c.Rated voltage/Maximum switching voltageAC1: 2,500 V·ARated load in

DIMENSION

Instruction Manual IM4000-U-T v0.92

Pag. 1/2IM4000-U-T v0.92

Rated Power Supply

3ED36G ELR-3B 0,1-0,2-0,3-0,4-0,5-0,75-1-5-10 220-240V 50-60Hz

3ED36T ELR-3B 24-125

0,03-0,1-0,3-0,5-1-3

0,03-0,1-0,3-0,5-1-3 0,1-0,2-0,3-0,4-0,5-0,75-1-5-10 24÷125V dc

Optional front panel adapter

ELR-3B Residual Current device and Monitor type B

- RESET BUTTON

- TEST BUTTON

- BY .ALARM A manual , or remote ON is required to return to the equipment's initialRESETstatus. When the trip is caused by the remote OFF signal, it can only be re-armed by the remote ONsignal.

this status.

Other display MESSAGES

SAVEOVRERRt

Enters setting valuesCurrent leakage reading off scalePoor toroidal connection

Cause of trip Message display

TestRemote signal ON/OFFCurrent leakage

TEStEXTALARM

AUTO

- GREEN LED: Equipment on- RED LED: Leakage trip

- YELLOW LED: Prealarm Id

- MAIN RELAYPREALARM RELAY DISPLAY

B

RECLOSING THE EQUIPMENT

Shows equipment status via a display and 2 LED's.- 5 button equipment setup and setting.

- . LED and display signals achange of status by changing from green to red.Display event type messages or values.

- .PREALARM SIGNAL. The yellow LED onlycomes on when current leakage exceeds thepreset prealarm threshold.

mS

mA

mA

DESCRIPTION LED AND BUTTONS

contrelELR-3B

- DELAY SETTING

- SENSITIVITY SETTING

- SAFETY SETTING

- RESET PREALARM SETTING

WIRING DIAGRAM

The message and two values appear on the, .td

screen after pressing the td

The..selected value to be saved is displayed by showing the message SAVE.

PROG

MAIN RELAY PARAMETER SETTING ( , and std/+ )t Id d

- , I.dSENSITIVITY SETTING The same operation as above setting is carried out bypressing I.d

- , std/+. Pressing thisSAFETY SETTING button select the type of safety you want:(Std) Standard, contact NO(+) Positive, contact NC the symbol appears in the display.

PREALARM RELAY PARAMETER SETTING ( , ,std/+ and Auto)t Id d

+

A short press on enters the prealarm channel activating the message onPROG Alarmthe display.

. Select the time delay for giving the prealarm signal, t .d

- , I. SdSENSITIVITY SETTING elect the equipment's prealarm threshold. Selectedsensitivity stated as % in the main channel (OFF-50-60-70-80-MAIN).

- , std/+. SPOLARITY SETTING elect the prealarm output signal polarity.

REC- SETTING OF RESET OF PREALARM ctivating , the equipmentautomatically resets the prealarm when the leakage current drops below the presetalarm threshold.

CURRENT

Sine half waveSine half wave phase controlled (90º-135º)

Sine current at 1000HzSine current at 400HzSine current at 150Hz

Smooth DC current

Lower limit

0,8xldn0,8xldn

1xldn0,8xldn0,8xldn0,8xldn0,8xldn

Upper limit

1xldn1,4xldn

1,3xldn1xldn1xldn

1,7xldn1,4xldn

Alarm range according to leakage current measured

Pag. 2/2

30 m A

Sensinilidad / Sensivity

300 mA

500 mA

CTB-1/ ,60 CTB-1/80, CTB-1/110

CTB-1/22, CTB-1/35,

Type of current sensor CTB-1/... series according sensitivity I n�

CTB-1/ ,160 CTB-1/210,

RG

U-

10

C

NL1 L2 L3

1-S

12-S

2

LOAD

1S

12

S2

Trip by SHUNT COIL.- Manual reclose.

8 91 2 4 5 6

10 11 13 14 15

Reset

Exte

rnal O

N/O

FF

Typ

eC

TB

-1/...

ELR-3B

PowerSupply

NL1 L2 L3

1-S

12-S

2

1S

12S

2

- Manual reclose.

Reset

Test

LOAD

1 2 4 5 6 8 9

10 11 13 14 15

ELR-3B

Typ

eC

TB

-1/...

PowerSupply

Terasaki Electric (Europe) Ltd.80 Beardmore Way - Clydebank Industrial EstateGlasgow - G81 4HTwww.terasaki.com

ELR-3B

IM4000-U-T v0.92