ENTES ELR-30-A Manual

ENTES Ikke kategoriseret ELR-30-A

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Side 1/4

Trip Characteristics for t ≥ 0.15s

EN 60947-2:2003

B.4.2.4.2.2 Operating characteristic for CBR’s having a limiting

non-actuating time higher than 0.06 s declared by ENTES. The

maximum break time at IΔn, 2 IΔn, 5 IΔn, and 10 IΔn.

Earth Leakage Current

Trip setting

Maximum Break Time

I∆n 2I∆n 5I∆n

10I∆n

0.15 s 0.5 0.25 0.25 0.25

0.25 s 0.5 0.35 0.35 0.35

0.5 s 0.6 0.6 0.6 0.6

0.8 s 0.9 0.9 0.9 0.9

1 s 1.1 1.1 1.1 1.1

2.5 s 2.6 2.6 2.6 2.6

5 s 5.1 5.1 5.1 5.1

10 s 10.1 10.1 10.1 10.1

Features

1. Wide leakage current adjustment range

2. Adjustable earth leakage trip time

3. Instantaneous trip (for details refer trip characteristics)

4. “Test Feature” to check product functionality

5. “Manual Reset Feature” with reset buton

6. Remote resetting

7. 1C/O+1NO relay output.

8. LED indications for all failures

9. Wide auxiliary supply voltage range

10. DIN rail mounting

11. Easy to install

12. Compact size

Recommendations

It is recommended to use CBCT’s as mentioned in the table, to ensure the trip

current accuracy.

Caution

1. Always follow instructions stated in this quick start manual.

2.Before installation, ensure that specications compatible with intended

application.

3.Installation must be done by a successful electrician.

4.Suitable dampers must be provided in case of over-vibration during installation.

5.Automation and control devices must be installed so

that they are protected against any risk of involuntary

actuation.

6.Disconnect the power before working on the device.

Terminal Details

Use Cu Wire of 60/75°C only

Notes

1. Since the innovation of the product is a regular process, we reserve the right

to change all its features without prior notice.

2. The factory settings of the device are set to 30mA trip and instantaneous

delay.

These settings can be adjusted as needed by the installation. A seal is supplied

allowing the user to secure the clear window and hence prevent any unnecessary

adjustment of the settings.

3. To comply with regulations, it is recommended that the device should be

tested periodically to ensure correct operation.

4. In case of excess harmonics power transmission cables have more leakage

because of low impedance o󰀨ered by cable capacitance, IΔn setting need to

keep at higher level.

ELR & CBCT

EARTH LEAKAGE RELAY & CORE BALACNCE

CURRENT TRANSFORMERS SERIES

Quick Start Manual

Trip Characteristics

Standard IEC 60947-2 annex M indicates the operating characteristic for a

nontime-delay type in table B.1 in B.4.2.4.1 in standard IEC 60947-2 annex M.

CBRs having I∆n = 30 mA shall be of the non-time-delay type.

If the trip time is set at ‘0’ sec, then for 5 I∆n & 10 I∆n, the tripping time will be

< 40 ms for all current ranges.

Earth Leakage Current I∆n 2I∆n 5I∆n

10I∆n

Maximum Break Time 0.3 0.04 0.040.15

1) For CBRs having I n < 30 mA, 0.25 A may be used as an alternative to 5I n

2) 0.5 A if 0.25 A is used

Trip Time in s

Trip Current / Set Current

Trip Characteristics for non delayed trip at I∆n > 30mA

For CBR’s having limiting non-actuating time of 0,06 s the operating characteristic

is given in table B.2. in B.4.2.4.1 in standard IEC 60947-2 annex M.

Earth Leakage Current I∆n 2I∆n 5I∆n

10I∆n

Maximum Break Time 0.5 0.15 0.150.2

Trip Time in s

Trip Current / Set Current

Trip Characteristics for ∆ t =0.06 s, I n > 30mA

Trip Time in s

Trip Current / Set Current

Trip Characteristics for ∆ t > 0.15 s

Trip Time in s

Trip Current / Set Current

Trip Characteristics for ∆ t > 2.5 s

TECHNICAL SPECIFICATIONS

ELR-30-M ELR-30-A

SUPPLY

Supply Voltage

220-415VAC / 220VDC -20% to +20%

Power Consumption (Max.)

10VA

LED

Indication

Power On

ON (Green Led)

EL / CT

ON (Red Led) Relay Trip / Blinking (CT OPEN)

Leakage Current/ TST

BY bar graph 30%(Green), 45%(Green), 60%(Yellow), and 75%(Red), Blink Test/Reset Switch is pressed

Treshold I∆n (A)

0.03 – 0.1 – 0.3 – 0.5 – 1 – 3 – 5 – 10 – 20 – 30

Frequency

50-60Hz

RELAY O / P

Contact Rating

1 C/O + 1 NO; 5 A (Resistive) @ 240 VAC / 30 VDC

Contact Arrangement

1 C/O SPDT and 1 NO SPST

Utilization Category (AC-15)

3.0 A at 120 V & 1.5 A at 240 V

Utilization Category (DC-13)

0.22 A at 125 V & 0.10 A at 250 V

Mechanical Life Expectancy

1X10

Electrical Life Expectancy

1X10

Contact Material

Ag Alloy

RESET

Reset

Manual Reset Auto Reset

No. Of Auto Resets

- 4

Clear Auto Reset

After 1 hour of healthy condition or supply interruption

Test / Reset

Local and Remote (Non Potential Free Contacts) (Up to 10 m)

∆t Settings (s)

0.040 – 0.06 – 0.15 – 0.25 – 0.5 – 0.8 – 1 – 2.5 – 5 – 10

Reset Enable

Below 50% of set I∆n in presence of CBCT

Reset Time

<1 s

Type Class

‘A’ True RMS measurement upto I∆ 1A (as per IEC 60947-2 Annex M)

Setting Accuracy

‘AC’ True RMS measurement 30mA to 30A (as per IEC 60947-2 Annex M)

Repeat Accuracy

- 20% (Including CBCT accuracy)

AMBIENT

± 2%

Storage Temperature

-20°C to + 80°C

Operating Temperature

-15°C to + 60°C

Relative Humidity

5 to 95% Rh (without condensation)

Max. Operating Altitude

2000 m

Degree of Protection

IP-20 for Terminals, IP-40 for Enclosure

Operating Position

Any

Pollution Degree

OTHERS

Mounting

Din Rail

Dimensions in mm (W X H X D)

36 X 90 X 65

Weight Approx. (Un-packed)

150g

Certication

CBCT for Type A & AC Current

Size (W X H X D) mm

Inner

Diameter

Max. Current

Per Phase

I∆n setting range if there are

pulsating DC current(Type A)

CBCT-70

37x133x109.3 160A70mm 30mA to 3A

CBCT-92

37x155x132 92mm 200A 30mA to 3A

CBCT-120

37x176x153 120mm 250A 30mA to 3A

CBCT-210

37x282x250 210mm 400A 30mA to 3A

Produkt Specifikationer

Mærke:	ENTES
Kategori:	Ikke kategoriseret
Model:	ELR-30-A

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