For over 6 amps, use three current transformers with 5 amp
secondaries, set the Current Dial for the display to read 5 Amps,
select current transformers so that the motor rated FLA is close
to mid-range of the primary amps, program Function 8 of the
relay for the CT ratio, i.e., if the Current Transformer ratio
is 150:5 then program the CT ratio for 30.
Models CDP and CRP are current sensing devices.
Loss of phase will give a positive trip with a complete loss
of phase current. Other voltage sensing devices will always
see a voltage on all three legs for the reason that the
unpowered motor leg will act as a transformer and therefore
give an output voltage to the sensor. The sensor will then see
three voltages on the motor and will need to be finely tuned.
3 Phase Digital Ammeter Function will read each of the three phases
Adjustable Trip Amps
Solid State
with Digital Display and Bar Graph
Adjustable Overload Class 1 to 60
Bar Graph reads 60 to 110% of real load current
Seven Segment display gives cause of a fault and also current
on each of three phases
Delay in starting: 0 to 60 seconds
Delay in operating: 0 to 30 seconds
Control Power Required: 190 to 250 VAC nominal, 50/60 Hz, 1 PH
Operational Temperature: -25 to +70 degrees C
Auxiliary Contacts: 2 SPST (when power applied)
Output contacts: 3A, 250 VAC resistive load
Screw Terminals
Mounting: 35mm DIN rail or panel
Protects against:
Overcurrent
Undercurrent
Phase Failure
Assymetry
Motor Stall
Locked Rotor
Phase Reversal
Options are available for: 120 VAC Control Power
Ground Fault and Short Circuit Protection
Remote Display with Extension Cable Tunnel rather than Screw terminals
18 Month Warranty
You may order by telephone: (203) 217-2353
Please have the following information:
Credit Card number
Expiration date
Name on the card
Credit Card billing address
Shipping address
