ARG Series
Wirewound power resistors in Al case
The Ohmite ARG series features wired connection
points with insulated connectors. The finned extrusion profile allows for more thermal efficiencies and
can also be heatsinked for more power dissipation.
The ARG series resistors are suitable for power
elctronic circuits (eg. motor control, braking, frequency converters).
S P E C I F I C AT I O N S
Series
ARG120
ARG160
ARG240
ARG320
ARG400
Nominal load at 25°C
No heatsink
with heatsink
PNED=30%* PNED=100%*
PN
Resistance
120
45
150W
1R6 ~ 180R
160
60
200W
2R2 ~ 240R
240
70
300W
4R7 ~ 430R
320
80
400W
6R8 ~ 620R
400
100
500W
9R1 ~ 910R
*ED – load factor = percentual ratio of switch-ontime against cycle period - typical 120 s
Max. Overload
Voltage
1,000VAC
1,000VAC
1,500VAC
2,000VAC
2,300VAC
CHARACTERISTICS
Maximal surface 250°C
temperature
Adiabatic impulse
4500
Tolerances ±5%
4250
TCR (10-6/K) ≤ ±150ppm
4000
Maximum operating √(PxR)
voltage (VAC)
3750
3500
Stability ±5% at +25°C and PNED=100%, 1,000 hours
Isolation resistance ≥10GΩ at 500VAC
Isolation test voltage 4000VAC
Climatic category 50 / 200 / 56
Specification TSB-356, TPTE57-155/98,
ČSN 60115-1/QC400 000
2750
2500
2250
2000
1750
1500
1250
Derating
1000
100
with heatsink (all sizes)
Percent Rated Power
3000
Adiabatic impulse (J)
Pulse overload 10 x PNED=100%, 5 sec
3250
80
750
500
250
0
60
0
ARG120
ARG160
ARG240
ARG320
ARG400
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
Ohmic value
no heatsink
ARG120
ARG160
40
20
ARG240 - 400
0
0
25 50 75 100 125 150 175 200 225 250 275
Ambient Temperature, °C
(continued)
138
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
ARG Series
Wirewound power resistors in Al case
d i m ensions
2.25
36.5
max.
28
max.
Series
5.4
ARG120
L2
L1
ARGT160C 25R J
Series Thermal cut-off
blank = no cut-off
Size
(mm)
Resistance Tolerance
J = 5%
2R J
5R J
10R J
15R J
25R J
4R J
6R J
8R J
12R J
20R J
5R J
7R5 J
10R J
ARG240C
ARG240C
ARG320C
ARG320C
ARG320C
ARG320C
ARG320C
ARG400C
ARG400C
ARG400C
ARG400C
ARG400C
rev 12/18-2
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
155
144
310
200
Standard part numbers
ARG120C
ARG120C
ARG120C
ARG120C
ARG120C
ARG160C
ARG160C
ARG160C
ARG160C
ARG160C
ARG240C
ARG240C
ARG240C
180
ARG320
or d ering infor m ation
Wire connections
0.25 inch female covered quick connectors
Weight (g)
79
105
ARG400
300 min.
L2 (mm)
90
ARG160
ARG240
5.5
L1 (mm)
139
16R J
22R J
8R J
10R J
12R J
18R J
24R J
10R J
15R J
20R J
25R J
50R J
260
94
189
249
208
400
515
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