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Products I Motor / Pump Protection Relays I S2 CMR1



S2 CMR1
Phase Failure
Unbalance
Phase sequence
Overloading and dry running (Under current) Microcontroller based design
SMD technology
Auto/Manual Reset
Adjustable current trip settings
Selectable overload characteristics
2 CO output relay
Supply Voltage
System : 100-120/220-240/380-440V AC ± 20%, 48-63 Hz
Auxillary : 100-120/220-240VAC±20%, 24V DC+10%-15%

Output Relay Contact : 2 CO

Input : -

Trip Setting
Phase to phase unbalance : 50% of Motor Current (Fixed)
Under current (Dry running) : 40% to 80% of set current
Overload : As per inverse time characteristics
UV/OV : N.A.

Trip Time Delay
On phase failure : 4 Sec ± 1 Sec (Fixed)
For overloading : As per Inverse Time Characteristics
2/5/10 Sec. (Selectable)
UV/OV RP : N.A.

Resetting : Auto / Manual

Approx Weight : 140 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)

Selection Chart For CTS Times full Load Current
S2 CTS1 S2 CTS1
Timing/ Relay logic Diagram

Electrical Connection Diagram

S2 CMR1 S2 CMR1

Relay contact position shown in 'Power off' condition
Suitable for Panels in Following Apllications:
Air -Conditioning & Refrigeration Machines
Screw Compressors
Lift , Elevators, Hoist & Cranes
Crusher Motors , Mining M/c
End Users
 
 
 
 



MODELS

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