Approx. Rs 2,000 / Number Get Latest Price
Product BrochureBrand | Navago |
Voltage | As per customer requirement |
Frequency | 50 Hz |
Phase | Single, Three |
Mounting | Base, 96 sq mm & DIN rail mounting |
Leakage Current | As per customer requirement |
Description of Earth Leakage Relay :
This relay is used on AC systems and is a sensitive electronic protective device. Its operation on Earth fault is independent of the system voltage imbalance. This relay can detect Earth fault currents as low as 1 amp. This is 0.25% in a 400 amps feeder system. This can be used on a single phase or on a three-phase network.
Principle of Operation :
This relay operates on the core balance principle wherein the currents in the three phase of the system are summed by a core balance C.T. which for normal conditions equates to zero. In case of a leakage current to earth this balance is disturbed causing the electronic circuit to operate a relay within the unit. In this event the relay that is generally connected to circuit breaker operates thus tripping the main circuit. The electro mechanical relay operates on fault. The Earth Leakage Relay is provided with a TEST push button for checking its operation and a RESET button to reset the relay on operation. This helps in checking the proper functioning of the relay.
Construction :
Mounting:
The Earth Leakage Relay can be supplied in base mounting (Projection type) or 96 sqmm (door mounting). We can also supply the relays with DIP Type switches for leakage and time delay selection.
Approx. Rs 2,500 / Number Get Latest Price
Product BrochureBrand | Navago |
Model Name/Number | ELRBIF |
Voltage (V) | 110 or 220 or 415 or 550 V AC |
Current (Amps) | 5 Amps |
Leakage Current Setting | 250 mA, 375 mA, 500 mA |
Number of Contact | 1 N/O , 1 N/C |
Principle of Operation:
This relay operates on the core balance principle wherein the currents in the three phase of the system are summed by a core balance C.T. which for normal conditions equates to zero. In case of a leakage current to earth this balance is disturbed causing the electronic circuit to operate a relay within the unit. In this event the relay that is generally connected to circuit breaker operates thus tripping the main circuit. The electro mechanical relay operates on fault. The Earth Leakage Relay is provided with a TEST push button for checking its operation and a RESET button to reset the relay on operation. This helps in checking the proper functioning of the relay.
Under healthy conditions ‘OK’ LED will glow. In case of any leakage current the relay will ‘TRIP’ LED will glow.
Mounting: The relay is base mounting and has built in CBCT.
Approx. Rs 2,500 / Piece Get Latest Price
Product BrochureBrand | Navago |
Model Name/Number | ELRMSMB |
Current | 0.5 A to 4.0 A or 80 mA to 750 mA or 750 mA to 2 A |
Voltage | 110/230 V or 415/550 V |
Phase | Single Phase |
Dimension | 120 mm X 160 mm X 60 mm. |
Material | Metal |
This relay operates on the core balance principle wherein the currents in the three phase of the system are summed by a core balance C.T. which for normal conditions equates to zero. In case of a leakage current to earth this balance is disturbed causing the electronic circuit to operate a relay within the unit. In this event the relay that is generally connected to circuit breaker operates thus tripping the main circuit. The electro mechanical relay operates on fault. The Earth Leakage Relay is provided with a TEST push button for checking its operation and a RESET button to reset the relay on operation. This helps in checking the proper functioning of the relay. External (remote) TEST and RESET connections is also be incorporated. Under healthy conditions ‘OK’ LED will glow.
In case of Fault/Leakage Fault LED will glow and after set time delay the relay will Trip and ‘TRIP’ LED will glow along with Fault LED. On rectification of Fault the Fault LED will switch OFF but TRIP Led will glow unless and until RESET button is pressed.
Other Details:
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Approx. Rs 2,000 / Piece Get Latest Price
Product BrochureBrand | Navago |
Voltage | As per customer requirement |
Voltage (V) | 110 , 220 , 415, 550 V |
Leakage Current | As per customer requirement |
Frequency | 50 Hz |
Principle of Operation:
This relay operates on the core balance principle wherein the currents in the three phase of the system are summed by a core balance c.T. Which for normal conditions equates to zero. In case of a leakage current to earth this balance is disturbed causing the electronic circuit to operate a relay within the unit. In this event the relay that is generally connected to circuit breaker operates thus tripping the main circuit. The electro mechanical relay operates on fault. The earth leakage relay is provided with a test push button for checking its operation and a reset button to reset the relay on operation. This helps in checking the proper functioning of the relay. External (remote) test and reset connections can also be incorporated.
Under healthy conditions ‘OK’ LED will glow. In case of Fault/Leakage after set time delay the relay will Trip and ‘TRIP’ LED will glow.
Mounting:
The relay can be supplied in 96 sqmm (door mounting) or DIN rail mounting.
Approx. Rs 2,000 / Number Get Latest Price
Product BrochureBrand | Navago |
Voltage (V) | As per customer requirement |
Frequency | 50 Hz |
Leakage Current Setting | As per customer requirement |
Number of contacts | 2 sets of C, NC, NO |
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