TERASAKI ELR-3B Instruction Manual

ELR-3B Residual Current device and Monitor type B
Type
code
3ED36G ELR-3B
3ED36T ELR-3B 24-125

GENERAL DESCRIPTION

Electronic type B earth leakage current protection and monitoring relay. Associated to
external core balance transformer the
relays. 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
Displays setting values and instantaneus earth leakage current value.

PRELIMINARY CONSIDERATIONS

CHECKS ON RECEPTION
On 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

INSTALLATION AND START-UP

The user must take into account and observe the informations and warnings included in
this 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 protection
systems are not working or there are signs of a problem (in case of visible damage).
INSTALLING THE EQUIPMENT
DIMENSION
52,5
Wheight : 168 gr
IM4000-U-T v0.92
Sensivity (A)
0,03-0,1-0,3-0,5-1-3
0,03-0,1-0,3-0,5-1-3
CTB-1/xxx famil y . It has 2 programmables outputs
IMPORTANT !
67,9
43,5
dimensions in mm.
Fixed by rail DIN 46277
(EN 50022)
Tripping delay (s)
0,1-0,2-0,3-0,4-0,5-0,75-1-5-10
0,1-0,2-0,3-0,4-0,5-0,75-1-5-10
Optional front panel adapter
3EDA03 .
3 Not used
4 Pre-alarm output relay common
5 Pre-alarm output relay, NC
6 Pre-alarm output relay, NA
7 Not used
8 Input Current sensor 1S2
9 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

TECHNICAL FEATURES

- Reclosing type: Manual via RESET button or by cutting power supply.
- Rated power supply
- Operating temperature
- Humidity (without condensation) : 5% .... 95%
- IP Protection
Assembled equipment (front) : IP 41
Non assembled equipment (sides and rear cove) : IP 20
- Maximum operating height : 2000 m.
- Connections :
Permissible cable section:
Recommended tightening torque: 0.5-0.6 Nm
Length of cable to strip:
Recommended screwdrivers
- Switch Output contact features
Rated current/Maximum instant current
Rated voltage/Maximum switching voltage
Rated load in AC1: 2,500 V·A
Instruction Manual IM4000-U-T v0.92
Rated Power Supply
220-240V 50-60Hz
24÷125V dc
Optocoupled, 0.7W /230 Vac ± 20%
Rated current: 10 A
Rated voltage: 250 V
Rated Load: 2.500 V·A
Rated current: 10 A
Rated voltage: 250 V
Rated Load: 2.500 V·A
10 11 13 14 15
Reset
ELR-3B
Test
1 2 4 5 6 8 9
voltage: 230 ( 20%) 50/60 Hz, 6 VA ±
: -10ºC / +50ºC
2
0,127 - 2,082 mm
7 mm
: Bar 0.4 x 2.5 x 80 mm,
13-14-15 and 4-5-6
: 10 / 15 A a.c.
: 250 / 400 V a.c.
c.a.
c.a.
c.a.
c.a.
length 160 mm
Pag. 1/2