17
I.B. 8926-1A
TO REMOVE HEATER PACKS
Loosen two (2) heater packs mounting screws and
remove heater pack from overload relay.
OVERLOAD RELAY SETTING
This bimetalic ambient compensated overload relay
is adjustable within the FLA range of the heater
pack. Each heater pack is marked with its FLA
ratings. With proper heater section, the overload
relay will ultimately trip at 125% FLA for a 1.15
service factor motor and at 115% FLA for a 1.0
service factor motor.
HEATER SELECTION / INSTALLATION
Select the appropriate heater pack number, which
corresponds to the motor FLA rating for your
application. Insert each heater into the overload
relay and tighten heater mounting screws securely
per table below.
NOTE:
A total of three individual heaters
must
be
installed in order for the overload relay to work
properly.
HEATER PACK NOS.
TORQUE
H2001B thru H2017B
9 lb-in.
H2018 thru H2024
4-30 lb-in.
FLA DIAL ADJUSTMENT
For motors having a 1.15 service factor, rotate the
FLA adjustment dial to correspond to the motor’s
FLA rating. Estimate the dial position when the
motor FLA falls between two letter values as shown
in the example.
For motors having 1.0 service factor, rotate the FLA
dial one-half position counter-clockwise (CCW).
FLA
1.0
ADJUSTMENT
SERVICE
DIAL
FACTOR
Example of a 12.0 FLA setting for a
heater pack number H2011B
showing position for 1.0 or 1.15
service factor motor.
MANUAL / AUTOMATIC RESET
The overload relay is factory set at “M” for manual
reset operation as shown in the illustration. For
automatic reset operation, turn the reset adjustment
dial to the “A” position
Automatic reset is not intended for two-wire control
devices.
RESET
Examples of
ADJUSTMENT
setting for
DIAL
manual reset.
TEST FOR TRIP INDICATION
To test overload relay for trip indication when in
manual reset, pull out the blue reset button. An
orange flag will appear indicating that the device has
tripped. Push reset button in to reset.
A
B
C
D
.254
.306
.359
.411
H2001B
.375
.452
.530
.607
H2002B
.560
.676
.791
.907
H2003B
.814
.983
1.15
1.32
H2004B
1.20
1.45
1.71
1.96
H2005B
1.79
2.16
2.53
2.90
H2006B
2.15
2.60
3.04
3.49
H2007B
3.23
3.90
4.56
5.23
H2008B
4.55
5.50
6.45
7.40
H2009B
6.75
8.17
9.58
11.00
H2010B
9.14
10.8
12.4
14.0
H2011B
14.0
16.9
19.9
22.8
H2012B
18.7
22.7
26.7
30.7
H2013B
23.5
28.5
33.5
-
H2014B
FLA DIAL POSITIONS
STD TRIP
CLASS 20
NEMA SIZE 0 AND 1 SIZE F
HEATER PACK SELECTION TABLE
MOTOR FLA RATING
NEMA SIZE AMPERES
SIZE
AMPERES
0
18
1
27
F
32
MAXIMUM RATINGS
Use 75
°
C copper conductors only
Max. Wire Size – 8 AWG
n
NOTE: After
the above referenced settings have
been made, rotate the FLA dial
one position
clockwise
for these heaters (see table). If less than
one position is available, rotate dial maximum. This
note
does not
apply when these heaters are used
with adapter base. Catalog No.
C306TB1.
Exception:
does not apply to AN16DN0.
WARNING –
To provide continued protection against
fire or shock hazard, the complete overload relay
must be replaced if burnout of the heater element
occurs.
