Datasheet
1/ Assumes UL508 ratings with 400 KCmil cables, ambient max. UL508 temperature of 75°C, and max. UL508 terminal
t
emperature rise of 50°C. Contactor can also carry the higher currents shown on page 2 at 50°C ambient, and meet all of
t
he UL508 requirements
.
Contactor meets all of its published specifications at 85°C ambient, but terminal temperature can rise 60°C, which is
higher than the 50°C allowed by UL508
.
T
he maximum terminal temperature rating is 175°C, which means much higher currents than shown on page 2 can be
carried and switched. However, this temperature is much higher than most cable insulation ratings, which mean busbars
must be used. Contact GIGAVAC for assistance for higher current applications.
2
/ Rating consists of combined inrush + cranking current at the times specified, with 2 seconds off between cycles. This is
higher current than is required for UL1107 for marine battery switche
s
.
75°C / 50°C
Cable size 1/ KCmil 40
0
Continuous, UL508 Ma
x
1/
10 seconds (1 time)
100 Seconds (1 time)
300 Seconds (1 time)
A
mp
Amp
Amp
Amp
350 / 400
525 / 710
390 / 510
350 / 400
Starter Carr
y
–
Inrush 250 ms
(
10 re
p
eats 1/ 2/
)
Am
p
NA / 2,00
0
Starter Carry - Cranking 10 sec (10 repeats 1/ 2/) Amp NA / 500
Maximum terminal Temp, Continuou
s
Deg
C
17
5
Maximum terminal Tem
p
, Intermittent De
g
C
22
5
Ratings are at 25ºC. For specific values at other temperatures, please contact GIGAVAC.
1/ Because the contactor is operated by a coil that changes resistance with temperature, the maximum coil voltage will be
lower than indicated at temperatures above 25C, and higher than indicated at temperatures below 25C
.
2
/ Contactor has two coils. Both are used for pull-in, and then in approximately 75 milliseconds, one coil is electronically
removed from the coil drive circuit. The remaining coil supplies low continuous hold power sufficient for the contactor to
meet all of its specified performance specifications. This provides the lowest coil power possible without the use of PWM
electronics that have been known to cause EMI emissions and/or cros
s
-talk on your system control power.
3/ Because the contactor is operated by a coil that changes resistance with temperature, and because Nominal Coil
v
oltage has been assumed for the I
n
-Rush, Hold Current and Hold Power specifications, Current/Wattage will be lower
t
han indicated at temperatures above 25C and higher than indicated at temperatures below 25C
.
4
/ For Pick-up testing of contactors with dual coils, the voltage can not be ramped up slowly, but must be applied instantly
t
o at least the maximum pull-in voltage or current. Otherwise, the contactor will not pick-up.
5/ Because the contactor is operated by a coil that changes resistance with temperature, Pick-up Voltage, Hold Voltage,
and Drop Out Voltage will be lower than indicated at temperatures below 25C and higher than indicated at temperatures
above 25C
.
6/ These DC coils have built-in coil suppression. The use of additional external coil suppression can slow the release time
and invalidate the life cycle ratings, or can cause the contactor not to be able to interrupt the maximum current specified. If
lower coil back EMF is re
q
uired,
p
lease contact GIGAVA
C
for assistance
.
Coil Voltage (Nominal) 12Vd
c
24Vd
c
48Vd
c
Coil P/N Desi
g
nation B C F
Coil Voltage (Max) 1/ 15 30 60
In-Rush Current Max (75 ms)
–
A
mps 2/ 3/ 4.
0
1.
7
0.
9
Hold Current after in-rush
(
Av
g
.
)
-
A
m
p
s 3/ 0.3
0
0.1
2
0.0
6
Hold Power after in-rush (Avg.)
–
Watts 3/ 3.6 3.0 2.9
Pick-u
p
, Volts, Max 2/ 4/ 5/ 7.
5
15.
0
4
0
Hold, Volts, Min 5/ 5.0 10.0 22
Drop-Out, Volts, Min 5/ 0.
5
2.
0
2
Coil Back EMF
(
volts
)
6/ 4
5
4
5
11
0