Protection Relays
Current Monitoring Relays and Transducers
CP5 SERIES
Single-phase current monitor
Description
The CP5 Series are undercurrent monitors designed to monitor
one leg of a 3-phase system. It is commonly used as a tower
monitor on center pivot irrigation systems to detect stalled or
jammed towers to prevent over watering.
The CP5 Series has both an adjustable trip level and an
adjustable trip delay timer. When the current is sensed, the CP5
Series activates its output relay, thus starting the motor/pump.
When the current in the monitored power line falls below the
user-selectable trip point, the unit goes through a trip delay timer
and then deactivates the output relay if the monitored current
does not recover first.
Features & Benefits
FEATURES
Adjustable trip
level (0-5A)
BENEFITS
Provides ability to precisely set the current trip point
for any application
Prevents nuisance tripping due to power
line fluctuations
Eliminates the need for a control transformer to step
voltage down to 120 - 240V for a control circuit
Wiring Diagram
Adjustable trip
delay (0-10m)
600V rated relay
contacts available
on CP-5-460 model
Specifications
Input Characteristics
Nominal Input Voltage
CP5115
CP5460
Frequency
Functional Characteristics
Operating Points
Trip Level
Trip Delay
Restart
Output Characteristics
Output Contact Rating (SPDT)
Pilot Duty
CP5115
CP5460
General Characteristics
Terminal
Torque
Wire Size
Safety Marks
UL
Dimensions
Weight
Mounting Method
115VAC
460VAC
50*/60Hz
0-5 Amps
0-10 minutes
1 second
480VA @ 240VAC
470VA @ 600VAC
7 in.-lbs.
12-18AWG
UL508 (File #E68520)
H
74.4 mm (2.93”);
W
133.9 mm (5.27”);
D
74.9 mm (2.95”)
1 lb. (16 oz., 453.59 g)
#8 screws
Ordering Information
MODEL
LINE VOLTAGE
CP5115
CP5460
115VAC
460VAC
*Note: 50Hz will increase all delay timers by 20%
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/cp5
Rev: 1-A-062716
Mouser Electronics
Authorized Distributor
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