Phase Failure Relays
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Power Line Transducers And MFM
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Voltage, Current, Frequency Transducers

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Transducers Models

Process/Plant Control and Automation

Twin AC Controller

Monitoring Relays

F3 EFR1

Earth fault/Ground fault monitoring of 3 phase systems, Manual Reset,

Input 1A or 5A through CBCT,

Adjustable earth fault trip setting,

Adjustable trip delay,

2 CO relay output

Earth fault/Ground fault monitoring of 3 phase systems, Manual Reset,

Adjustable trip delay,

Input 1A or 5A through CBCT,

Technical Data

System Supply

System 100 - 120 / 220 - 240 / 380 - 440 V AC ± 20%
Auxillary 100 - 120 / 220 - 240 / 415 V AC ± 20%, 50 / 60 Hz. 24 V DC ± 20%

Ext. Input

Ext. Input 1 Amp / 5 Amp (selectable) CBCT Secondary

Output Relay Contact

Output Relay Contact 2 CO

Trip Setting

Earth Fault10% to 100%

Trip Time Delay

Trip Time Delay0.1 to 1 sec. or 1 to 10 sec. (Adjustable)

Resetting Mode

Resetting Mode Manual / Remote

Operating Mode

Operating Mode Non Fail Safe

Weight

Weight550 gms (Approx.)

Dimensions (mm)

Overall (L x W x D)96 X 96 X 80
Mounting (L x W)92 X 92

Note:

Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)

Monitoring Relays

F3 EFR1

Earth fault/Ground fault monitoring of 3 phase systems, Manual Reset,

Input 1A or 5A through CBCT,

Adjustable earth fault trip setting,

Adjustable trip delay,

2 CO relay output

Earth fault/Ground fault monitoring of 3 phase systems, Manual Reset,

Adjustable trip delay,

Input 1A or 5A through CBCT,

Technical Data

System Supply

Ext. Input

Output Relay Contact

Trip Setting

Trip Time Delay

Resetting Mode

Operating Mode

Weight

Dimensions (mm)

Note:

Applications

Generator Panels

AMF Panels, MCC panels

Synchronizing Control Panels

Air Circuit Breakers (With shunt Trip Coil)

Motor Control Panels

MCCB (With Shunt Trip Coil)

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