Earth Leakage Relay provides protection against earth leakage as the unit gives a trip command to the control device. An earth fault current produces an output in the CT which is fed to the Earth Leakage Relay. If the fault current exceeds the adjustable trip setting of the relay, the unit trips. The contacts of this relay can then be used to isolate the fault, usually by tripping a Circuit Breaker. The Earth Leakage Relay is a static electronic relay. Adjustable sensitivity along with adjustable definite time delay allow efficient discrimination within the systems.

Analog Earth Leakage Relay

FEATURES

Consistent Reliability With High Accuracy
Trip setting through Front Panel Potentionmeter
Time Delay user settable
LED indication for healthy / faulty status
Auto / Manual Reset option
Compact size

SENSITIVITY RANGES : 300mA-3Amps,1 4Amps,1 -8Amps,1-10Amps Also user Spicified Ranges

SPECIFICATION
Aux. Supply	:	230V / 110VAC 50Hz (-20% +15%)
Burden on Aux.	:	< 3 VA
Delay	:	0.1 Sec.to 10Sec.
Relay Contacts	:	Potrntial Free Contact (NO&NC) (Energise on Trip)
Contact Rating	:	6 Amps /230 V AC/28 V DC
Temp	:	-20^oc to +55^oc
Humidity	:	< 90% RH ( non condensing)
Dimension	:	90x45x75xmm(L x W x H)
Mouting	:	Din(35 mm rail )/2xm4screw
Weight	:	350 gms

Core Balance CT (ZCT)

FEATURES

All current ratios available to match commonly available ELR's
Slim Design
Lightweight
Encapsulated CBCT
Terminals are finger proof touch as per IEC class
Highly Cost effective
Compact in size

MODELS

- CBCT 35 {35mm ID}

- CBCT 70 {70mm ID}

- CBCT 120 {120mm ID}

- CBCT 210 {210mm ID}

Any other Size circular / rectangular CBCT on request

SPECIFICATION
System Voltage	:	720 V maximum
Insulation Voltage	:	3kV for 1 minute
System Frequency	:	50 Hz or 60 Hz
Max. permissible Current	:	1KA continuous
		5KAfor 1.5 sec.
Terminal Conductor	:	≤ 2.5mm²
Current ratio	:	1 /1000,1/ 600 any other on request
Distance Between	:	< 50 meters
Toroid and relay
Operating Temperature	:	- 20°C to +70°C
Humidity	:	< 95% RH ( non condensing)
Enclosure	:	Flame retardant glass filled ABS
Complaint with	:	IEC 44-1 and IEC185
Mounting	:	Four Fixing Slots

Digital Earth Leakage Relay

State Of Art Microcontroller Based Design

Bar Graph To Indicate Leakage Current In Percentage

Consistent Reliability With High Accuracy

User Programmable Trip Level Through Rotary elector Switch

SToroid Open Circuit Detection

Facility To Seal Front Cover To Avoid Tampering Of Set Points

Optional: Relay At 50% Of Set Point Caution On Leakage Current
SENSITIVITY RANGES : 0.03, 0.10, 0.30, 0.50, 1.0, 3.0, 5.0, 10.0, 20.0, & 30.0amps

SPECIFICATION
Aux. Supply	:	230V / 110VAC 50Hz (-20% +15%)
Burden on Aux.	:	< 3 VA
Set Point	:	0.03,0.10,0.30,0.50,1.0,3.0,5.0,10.0,20.0,&30.0amps
Delay	:	0(<25ms for fault current >5xl^n),60,150,250,500,800 msec.,1,2.5,5,10
Trip Relay	:	80-90% of Set Value
Alarm Relay	:	50% of Set Value
Contact Rating	:	6 Amps /230 V AC/28 V DC
Temp	:	-20^oc to +55^oc
Humidity	:	< 90% RH ( non condensing)
Dimension	:	90x45x75xmm(L x W x H)
Mouting	:	Din(35 mm rail )/2xm4screw
Weight	:	350 gms

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