Lead Free

POWER -NIKKOHM

RoHS 2

メタルクラッド巻線抵抗器
1600, 2000, 2400, 2800 W
Metal Clad Wire Wound Resistors
ULM1600, ULM2000, ULM2400, ULM2800
IRM1600, IRM2000, IRM2400, IRM2800

特⻑⽤途Features and Applications
1600W to 2800W (on chassis) metal clad wire woundresistors, UL certified (ULM).
Minimum resistance value of 0.3 ohm and inductiveand non inductive winding are available.
Metal tab terminals and wire leaded terminals areavailable.
Current detection, motor control, recycle braking
resistor and dumping resistor of the powerelectronics.

定格 1600W から 2800W のメタルクラッド巻線抵抗器
誘導巻、無誘導巻、UL 認証品など巻線抵抗器として必要な仕様を満
足
最小抵抗値は、0.3Ωから⾦属端子とケーブル端子が選択可能
パワーエレクトロニクス機器の電流検出抵抗、回⽣制動抵抗、ブレーキ抵抗、フィルタ抵抗、ダミーロード抵抗、ダンピング抵抗B
2.02-6.3 dia.

16C30+/-0.5

Dimensions (mm)5.3+/-0.5

寸法E18+/-3DA

B

IRM1600, IRM2000, IRM2400, IRM2800 の捺印には品質保証会社 NIKKOHM のロゴが捺印表記されています
ULM1600, ULM2000, ULM2400, ULM2800 の捺印には UL 申請会社 RARA のロゴマークが表記されています
これら 8 形式の製品は被覆電線端子の製品はなく、⾦属端子（TAB）の製品のみを供給いたします。

(mm)
ULM1600
ULM2000
ULM2400
ULM2800

A±2330400480550

B±0.550505050C±0.5
100100100100D±2315385465535

E±2290360440510

Weight (kg)
2.5
3.1
3.7
4.3

IRM1600
IRM2000
IRM2400
IRM2800

330400480550

50505050100100100100315
385465535290360
440510

2.5
3.1
3.7
4.3

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

Lead Free

POWER -NIKKOHM

RoHS 2

1600, 2000, 2400, 2800 W Metal Clad Wire Wound Resistors
ULM1600, ULM2000, ULM2400, ULM2800
IRM1600, IRM2000, IRM2400, IRM2800
品目番号

Ordering Information

TypeInd./non-ind.
ULM2800N||
ULM1600--- (inductive)
ULM2000
N (non-inductive)
ULM2400
ULM2800
IRM1600
IRM2000
IRM2400
IRM2800
Note: Tolerance +/-5%(J) is standard.

定格電⼒と抵抗値

Resistance
50 ohm|See tableToleranceJ|+/-1.0% (F)+/-5.0% (J)端子指定 Terminals
L|
TAB (metal)

Rated Power and ResistanceResistance (ohm)
Rated Power
Rated Poweron chassis
in free air
Inductive
ULM1600 / IRM1600
1600W
570 W
1.5 - 88.0
ULM2000 / IRM2000
2000W
650 W
2.0 – 113.0
ULM2400 / IRM2400
2400W
720 W
2.5 – 144.0
ULM2800 / IRM2800
2800W
750 W
3.0 – 135.0
Note: Resistance range in IRM1600-2800 model can extend to 10kohm, call factory.
Type

性能仕様

Resistance (ohm)
Non inductive
0.30 - 23.0
0.45 - 30.5
0.60 - 37.0
0.70 - 33.5

Tolerance (%)
F (1%), J(5%)
F (1%), J(5%)
F (1%), J(5%)
F (1%), J(5%)

Performances

Category Temperature, Ambient
Insulation Resistance
Voltage ProofTemperature Coefficient
Short Time Overload
Moisture Resistance
Thermal ShockVibration
Humidity
Load Life+/- 3.0%+/- 3.0%+/- 5.0%+/- 2.0%+/- 3.0%+/- 5.0%

表⾯温度 Surface Temperature (°C)
表⾯温度 Surface Temperature (°C)

耐圧 Voltage
4500V|1500V
2500V
3400V
4500V

-55 °C to +200 °C
Minimum 20MΩAC 1500, 2500, 3500, 4500V for 1 min. - 2mA+/- 260ppm/K in maximum
10 times rated power – 5 seconds
40 °C, 95%RH, DC100V case-terminal, 500 hours
Power rating 30 minutes – minus 25 °C15 minutes10Hz-55Hz-10Hz, 1 minutes, 2 hours, x-y z direction
40°C, 95%RH, 0.1 rated power 1.5 hours on, 0.5 hours off, 500 hours
Rated power, 1.5 hours on 0.5 hours off, 500 hours

負荷軽減
100%

5002800 W
2400 W
2000 W
1600 W

400
300
200

40%

100

20%
0%
010203040
対定格電⼒% 負荷率50

1600-2000-2400-2800 W with heat sink

80%
60%

0Derating (% Rated Power)

Typical heat sink size 1200mm x 1200mm x 5mm

1600 W in free air
2000 W in free air
2400 W in free air
2800 W in free air

-50

050

100 150 200
250
Ambient Temperature (°C)

300

350

20210401
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