40AA Datasheet, PDF (1/2 Pages) Texas Instruments – 40/41/42AA Series ELECTRONIC MOTOR PROTECTION

40/41/42AA Series
ELECTRONIC
MOTOR PROTECTION
Product Overview
The 40AA, 41AA, and 42AA series
electronic motor protection modules
combine high performance and function
consolidation in order to provide reliable,
cost effective protection for your motor
needs. Used with Positive Temperature
Coefficient (PTC) sensors the
40/41/42AA modules protect against
locked rotor conditions, running overload
and high ambient temperature. The
innovative design offers additional
functions as well, such as minimum off
time delay, low voltage cutout and
bearing temperature protection. Also the
device is very safe and easy to calibrate
for voltage (no jumper is required).
Thermal protection is achieved by
monitoring the temperature of the motor
windings with PTC sensors. These
sensors can be the Klixon BA series or
any other compatible PTC sensor rated
Mark A or B. If the windings exceed the
rated trip temperature the sensor
undergoes a rapid change in resistance
relative to the change in temperature. As
a result of this change, the 40/41/42AA
modules' internal relays de-energize the
control coil of the external line break
contactor.
As the motor cools and acceptable motor
winding temperatures have been restored
the sensor resistance decreases to the
reset level. At this point the module will
reset itself automatically unless it was
set up for manual reset. In this case the
user is required to remove power from
the system for a minimum of 5 seconds.
The 40/41/42AA series modules are
ideal for many applications in the
HVAC/R industry as well as for industrial
systems. Some applications include
global commercial rooftop A/C, global
chiller applications, industrial pumps,
material handlers, elevators, escalators,
air compressors and industrial systems.
Product Specifications
Maximum
Number Sensors/
Channels Channels
Line
Voltage
Sensor
Type
Time Low Auto/Man
Delay Voltage Reset
40AA110E 1
40AA115E 1
41AA1105A 3
41AA1500E 3
41AA1600A 3
41AA1600E 3
41AA1606E 3
42AA100E 1
40AA100E 1
40AA300E 1
41AA1504E 3
40AA200E 1
40AA100A 1
40AA200A 1
40AA102A 1
3 _120/240 Mark A None _None Automatic
3 _120/240 Mark A 5 min. _None Automatic
1
24 Mark B 4 min. None Automatic
1 _120/240 Mark B None _None Manual
1
24V Mark B 2 min. Yes Automatic
1 _120/240 Mark B 2 min. _Yes Automatic
1 _120/240 Mark B 4 min. _Yes Automatic
3 _120/240 Mark B None _None Manual
3 _120/240 Mark B None _None Automatic
3 _120/240 Mark B 4 min. _Yes Automatic
1 _120/240 Mark B None _Yes Manual
3 _120/240 Mark B 4min. _None Automatic
3
24V Mark B None None Automatic
3
24V Mark B 4 min. None Automatic
2
24V Mark B None None Automatic
General Specifications
Operating Temperature Range
Supply Voltage
24 or 115-230 (±15%)
Rated Line Frequency
Low Voltage Cut-Out Trip (24V Input)
Low Voltage Cut-In Reset
Low Voltage Cut-Out Trip (120V Input)
Low Voltage Cut-In Reset
Low Voltage Cut-Out Trip (240V Input)
Low Voltage Cut-In Reset
Units
oC
VAC
Hz
VAC
VAC
VAC
VAC
VAC
VAC
Min. Typical Max.
-40
+70
45
50/60
62
15
16
17
18
79.5
85
90.5
94.5
160
170
180
184
Printed in U.S.A. 11/2003