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Monitoring Relays

S2 CMR3

Earth fault/Ground fault monitoring of 3 phase systems,

Microcontroller based design,

SMD technology, Manual Reset,

Input 1A or 5A through CBCT,

Adjustable earth fault trip setting,

Adjustable trip delay & ON delay,

2 CO relay output

Failsafe-non-failsafe seletable

Technical Data

S2-CMR3-Monitoring-Relays-Diagram-Minilec-group

S2-CMR3-Monitoring-Relays-Diagram-1-Minilec-group

System Supply

System 100-120/220-240/380-440 V AC ± 20%, 48-63 Hz
Auxillary 100-120/220 -240 V AC / 24V DC ± 20%

Ext. Input

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

Output Contact

Output Relay Contact 2 CO

Trip Setting

EF Trip Setting 10% - 100% of Rated Current Input (Variable) (Input through CT of 1AMP or 5AMP Secondary)
Under CurrentN.A.
Over Voltage N.A.

Trip Time Delay

Trip Time Delay0.1-1 Sec. (Adjustable)

Power on Delay

Power on Delay 1-10 Sec. (Adjustable)

Resetting

Reset Manual

Weight

Weight140 gms.

Dimensions (mm)

Overall (L x W x D)90 x 35 x 60
Mounting (L x W)35 mm rail Mounting

Note:

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

Monitoring Relays

S2 CMR3

Earth fault/Ground fault monitoring of 3 phase systems,

Microcontroller based design,

SMD technology, Manual Reset,

Input 1A or 5A through CBCT,

Adjustable earth fault trip setting,

Adjustable trip delay & ON delay,

2 CO relay output

Failsafe-non-failsafe seletable

Technical Data

System Supply

Ext. Input

Output Contact

Trip Setting

Trip Time Delay

Power on Delay

Resetting

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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