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 HRA RESISTOR
ASSEMBLIES

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The HRA series of  power, metal clad, wire wound resistors are designed for use in high power inverters.
The basis for these models is an IRV
resistors surrounded by a metal case, which conforms to international
safety specifications. The steel case is powder coated and baked for durability.

GENERAL SPECIFICATIONS

Model

Internal
Resistor

Power Rating

Resistance Range [ohms]

Resistance
Tolerance

Free Air

Inductive

Non-Inductive

HRA1.6K

2 X IRV800

640W

0.1-224

0.1-56

+-0.5(D)
+-1.0(F)
+-2.0(G)
+-5.0(J)
+-10(K)

HRA2.0K

2 X IRV1000

800W

0.1-280

0.1-72

HRA2.4K

2 X IRV1200

960W

0.1-320

0.1-96

HRA3.0K

3 X IRV1000

1100W

0.1-420

0.1-108

HRA3.6K

3 X IRV1200

1250W

0.1-480

0.1-144

HRA4.0K

4 X IRV1000

1400W

0.1-560

0.1-144

HRA4.8K

4 X IRV1200

1500W

0.1-640

0.1-192

HRA5.0K

5 X IRV1000

1600W

0.1-700

0.1-180

HRA6.0K

6 X IRV1000

1800W

0.1-840

0.1-216

HRA7.2K

6 X IRV1200

2000W

0.1-960

0.1-288

HRA8.4K

7 X IRV1200

2200W

0.1-1120

0.1-366

HRA9.6K

8 X IRV1200 2600W 0.1-1280 0.1-384
HRA10.8K 9 X IRV1200 2900W 0.1-1440 0.1-432
HRA12K 10 X IRV1200 3100W 0.1-1600 0.1-480

CHARACTERISTICS

1/Temperature Range

                                                                                                                                           -55C to +200C

2/Insulation Resistance

                                                                                                                                 20Mohms minimum

3/Dielectric Strength

                                            Available options:  1500, 3500 (VAC); Max Leakage Current:  2mA

4/Temp. Coefficient

                                                                                                                         +-260ppm/C maximum

5/Short Time Overload

+-[2%+0.05 ohms]                                                                                      10 X wattage rating 5s.

6/Moisture Resistance

+-[3%+0.05 ohms]                                      40C, 95% RH, DC100V case to terminal (500hrs.)

7/Thermal Shock

+-[2%+0.05 ohms]                                                       Wattage rating 30min., 25C, 15minutes

DIMENSIONS

Model

Weight
[Kg]

Dimensions [mm]

W¡¾5

D¡¾5

H¡¾3

W1¡¾2

D1¡¾2

HRA1.6K

7.8/8.33(fan)

250

510

110

215

360

HRA2.0K

8.5/9.0(fan)

250

510

110

215

360

HRA2.4K

14.1/14.6(fan)

252

580

110

215

430

HRA3.0K

10.5/11.3(fan)

250

510

110

215

360

HRA3.6K

16.4/16.9(fan)

252

580

110

215

430

HRA4.0K

15.0/15.5(fan)

250

510

190

215

360

HRA4.8K

18.7/19.2(fan)

252

580

190

215

430

HRA5.0K

16.6/17.1(fan)

250

510

190

215

360

HRA6.0K

21.0/21.5(fan)

250

510

190

215

360

HRA7.2K

23.3/23.8fan)

252

580

190

215

430

HRA8.4K

25.6/26.1(fan)

393

580

190

355

430

HRA9.6K

27.9/28.4(fan) 393 580 190 355 430
HRA10.8K 30.2/30.7(fan) 393 580 190 355 430
HRA12K 32.5/33(fan) 393 580 190 355 430

These models come with multiple conduit knockouts for easy wiring.

The enclosure is well ventilated and meets int¡¯l safety specs.

ORDERING PROCEDURE EXAMPLE

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

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