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
Shipping by ground UPS is included in the price shown.
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
