RoHS, Pb Free

POWER -NIKKOHM

600, 800, 1000, 1200 W
Metal Clad Wire Wound Resistors

IRV600, IRV800, IRV1000, IRV1200
ULV600, ULV800,ULV1000, ULV1200

Features and Applications
600W to 1200W (on chassis) metal clad giant current durable wire wound resistors.
Minimum resistance value of 0.1 ohm inductive and non inductive are available.
Good heat conductive aluminum housed, full welding structure, no burn insulation and excellent spacefactor for installation.
Current detection, motor control, recycle braking resistor and dumping resistor of the powerelectronics..

2.0 +/- 0.1

2 - 2.65R

4-5.3 hole

16.15+/-2

15.1+/-1
10+/-0.3
10+/-0.3

C

8.0+/-0.3

B

2 - 5.3

12.7+/-1

8.0+/-0.3(18.15+/-2)

Dimensions (mm)Please note;to provide strict tolerance
between terminals butloose tolerance between
terminals and the case.

IRV600/ULV600
IRV800/ULV800
IRV1000/ULV1000
IRV1200/ULV1200

10A±2235
286
335
405

EDA

B
±0.56161
61
61

C±0.559595959

D±2216266316386

E±2195245295365

Flying Lead
8mm2Flying Lead5.5mm20.1Ω～0.99Ω

≧ 1Ω

Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106© Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp

RoHS, Pb Free

POWER -NIKKOHM

600,800,1000,1200 W Metal Clad Wire Wound Resistors
IRV600, IRV800, IRV1000, IRV1200 ULV600, ULV800,ULV1000, ULV1200
Ordering Information
Type & Power

Connection

Ind./non-ind.

ResistanceTolerance

Terminals

Voltage

IRV1200PN

50 OHM

JL1500V|||||||

IRV600/ULV

P (parallel)--- (inductive)

Any value+/-0.5% (D)L (metal)

3500V

IRV800/ULV

S (series)

N (non-ind.)+/-1.0% (F)FL (Fly wire)

4500V

IRV1000/ULV+/-5.0% (J)

IRV1200/ULV+/-10% (K)5400V

Note: Tolerance +/-5%(J) is standard.

Power and ResistanceType

Rated Power,
On chassis

Rated Power,
Free

Instant
Power

IRV600ULV600

600W

300W

6KW

IRV800
ULV800800W

IRV1000
ULV1000

1000W

IRV1200
ULV1200

1200W

Connection

Parallel(P)Series(S)Parallel(P)
400W

8KW
Series(S)Parallel(P)400W

10KW
Series(S)Parallel(P)

480W

12KW
Series(S)Inductive/Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive
Inductive
Non-inductive

Resistance Range(ohms)
0.1 – 9.0
0.1 – 5.3
9.1 - 94
5.4 – 21.2
0.1 – 11.0
0.1 – 7.2
11.1 – 112
7.2 – 28.8
0.1 – 18.0
0.1 – 9.0
18.1 - 140
9.1 - 36
0.1 – 25
0.1 – 1225.1 - 160
12.1 - 48.0

Terminal connection
As shown in the figure on the right, the IRV resistor has four metal plate L-shaped
terminals, and one resister winding element is connected to one pair of two terminals.
The nominal resistance value of IRV resistors is to be connected two resistance windings
in parallel or in series. Total resistance value shows in parallel or in series.
For example, the IRV1200S(S shows series) has two internal resistance elements. Whenthe nominal resistance of IRV1200S (showing series) is 10 ohms, the resistance value isexactly 10 ohms when used in series. The resistance of one internal resistance element estimates about 5ohms, and series external connection makes the combined resistance of 10 ohms. However, though parallel
connection may think to be made around 2.5Ω, but synthetic resistance does not guarantee as 2.5Ω. It isnecessary to use in series. Performance can not be guaranteed if connected in parallel.
The specifications for two-element composition are specified, and the specifications for individual internal
elements are not guaranteed.

Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106© Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp

RoHS, Pb Free

POWER -NIKKOHM

600,800,1000,1200 W Metal Clad Wire Wound Resistors
IRV600, IRV800, IRV1000, IRV1200 ULV600, ULV800,ULV1000, ULV1200
Specifications and Performances
Specifications

RemarksModel

IRV600ULV600

IRV800
ULV800

IRV1000
ULV1000

IRV1200
ULV1200

Weight1165gr

1500gr1835gr2304grAbsolute Tolerance±0.5%(D), ±1.0%(F), ±2.0%(G), ±5.0%(J), ±10.0%(K)Standard:±5.0%(J)Withstanding Voltage

1500 VAC,
Optional 3500 VAC, 4500 VAC, 5400 VAC are vailable.
20 MΩ
-55°C～+200°C-55°C～+200°C

2mA leakage current

Insulating ResistanceOperating Temperature Range
Storage Temperature Range

Temperature Rise

Temperature Rise

Temperature Rise (°C) with heat sink of 600*600*5mmsized.

Temperature Rise (°C) in free air.

450

1200
1000
800
600

400350

450
400
350

300

300

250

250

200200150

150

100

100

505000 10 20 30 40 50 60 70 80 90 100％ Rated PowerDerating .
% Rating Power100
600W～1200W, with heat sink.

8060At 1000 Volts01200
1000
8006000 10 20 30 40 50 60 70 80 90 100％ Rated PowerNote:(1) Resistor terminal have not metal short bar thatmakes series or parallel connection.
(2) Flying lead terminals are available. Pleasecall factory: info@nikkohm.co.jp.
(3) Please request specification sheet at ordering.
The sheet will help not to misunderstanding
about actual specifications.

Free air, 600W and 800W

4020 Free air, 1000W and 1200W
002550280°C

75 100 125 150 175 200 225 250 275 300
Ambient Temperature (°C)

20210201
Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106© Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp