2
Installation Leafl et
IL04209007E-HVR
Effective May 2011
C441 Motor Insight™ Overload Relay (120V
Control Powered) Product Installation Leafl et
EATON CORPORATION
www.eaton.com
Terminal Connections
Motor Insight overload relay provides the following terminal connec-
tions. NC 95/96 contact is open when the device is unenergized.
Figure 3. Terminal Connection Diagram
Table 2. Terminal Connection Specifications
Name
Designation
Input
Description
Control Power
L1, L2
L, N
93.5 - 132Vac
Voltage input
- X1*, X2*, = 120V
- Tie X1 to X1
- Tie X2 to X2
- Inputs should have short circuit
protection
- Terminal provided for wiring
control power transformer
(9A maximum capacity).
Fault Relay
95/96
UL
®
508
B300
- 95/96 Contact opens when the unit
is faulted or unpowered.
Programable
Auxiliary Relay*
97/98
UL
®
508
B300
-97/98 Contact closes when the unit
is faulted or unpowered.
Reset
Input
R1
R2
120 Vac
+10%/-15%
Fault Reset Input.
* See section 6.7 of Users Manual MN04209001E for instructions to config-
ure the programmable auxiliary relay, which changes the behavior of the relay
from the default and allows for greater flexibility and alarming.
CAUTION!
THE OPENING OF BRANCH-CIRCUIT PROTECTIVE DEVICE MAY BE AN INDI-
CATION THAT A FAULT HAS BEEN INTERRUPTED. TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK, CURRENT-CARRYING PARTS AND OTHER COM-
PONENTS OF THE CONTROLLER SHOULD BE EXAMINED AND REPLACED
IF DAMAGED. IF BURNOUT OF THE ELEMENT OF AN OVERLOAD RELAY
OCCURS, THE COMPLETE OVERLOAD RELAY SHOULD BE REPLACED.
ATTENTION
LE DÉCLENCHEMENT DU DISPOSITIF DE PROTECTION DES DÉRIVATIONS
PEUT SIGNIFIER QU’UN COURANT DE DÉFAUT A ÉTÉ INTERROMPU. POUR
RÉDUIRE LE RISQUE D’INCENDIE OU DE CHOC ÉLECTRIQUE, LES PIÈCES
PORTEUSES DE COURANT ET LES AUTRES COMPOSANTS DE LA COM-
MANDE DOIVENT ÊTRE VÉRIFIÉS ET REMPLACÉS S’ILS SONT ENDOM-
MAGÉS. SI L’ÉLÉMENT PORTEUR DE COURANT DU RELAIS DE SURCHARGE
GRILLE, LE RELAIS DE SURCHARGE ENTIER DOIT ÊTRE REMPLACÉ.
Initial Configuration
On initial power-up, Motor Insight overload relay displays a “rOF”
message. This indicates that the fault relay is OFF. Configure the
device for the application prior to resetting the device.
To turn the fault relay OFF, press the Trip button.
Programming Set Points
Motor Insight overload relay is easy to configure. Viewing and
editing protection set points can be performed in the Protection
and Operation Mode. The following steps outline the procedure
for modifying any of the set points.
Configuring the Thermal Overload Protection Feature
Motor Insight overload relay features electronic motor overload pro-
tection. This feature protects the motor and power wiring against
overheating caused by excessive current for extended periods
of time.
The trip current is programmed by entering the motor full load
amperes (FLA) using the Motor FLA parameter. The trip class
(5 to 30) is set using the Trip Class parameter.
The FLA range of the overload relay can be modified with the use
of multiple turns through the CTs or with the use of external CTs.
Use the following tables to appropriately configure the device for the
application. If the application requires the FLA range to be extended,
program the CT multiplier first.
Table 3A. FLA Range
Current
Range
Catalog
Number
Motor
FLA
Number of
Conductors
Through CT
CT
Multiplier
.33 – 9
C441P3309NOUI-HVR
.33 - 1.5
.4 - 1.8
.5 - 2.25
.67 - 3.0
1 – 5
2 – 9
60 – 135
120 – 270
240 – 540
6
5
4
3
2
1
1
1
1
6
5
4
3
2
1
150 - (150:5)
300 - (300:5)
600 - (600:5)
5 – 90
C441059ONOUI-HVRI
5 – 22.5
6.67 – 30
10 – 45
20 – 90
4
3
2
1
4
3
2
1
Important Note
: After an overload trip, Motor Insight relay cannot be reset
until the thermal model decays to a thermal capacity that is thermally safe for
a motor restart. Cycling the power does not reset the thermal model.
Table 3B. Service Factor FLA Setting
Service Factor
Motor FLA Setting
>1.15
Enter the motor nameplate FLA
=1.10
Enter the FLA as (1.1* nameplate FLA/1.15)
Step 1: Press Mode button until Protection or Operation
Mode Led is lit.
Step 2: Press Up or Down button until the desired O/P LED
is lit. Display shows the current parameter value.
Step 3: Press the Edit/Save button. The display now shows
the parameter value but is now flashing.
Step 4: Use the Up/Down button to adjust the parameter
to the desired value.
Step 5: Press the Edit/Save button. The Display now shows
the new parameter value that has been saved by the device.
Mode
Edit/Save
120
110
110
120
Edit/Save
120VAC
120VAC Control Power 50/60 Hz
X1
X2
L
NC
NO
CTRL PWR
RESET
B300 PILOT DUTY ONLY
95 96 9798 X1 X2 R1
18-12 AWG Torque 0.6 Nm/5.3 lb-in.
USE 75°C CU WIRE ONLY
120VAC
R2
* No Motor Loads, 9A Max
120VAC
N
