GRE3

www.vishay.com

Vishay Milwaukee

Revision: 03-May-17

1

Document Number: 31882

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

High Power, High Current Grid Resistors,

6 kW and Larger

OVERVIEW

Vishay Milwaukee resistor GRE3 grid offering expands on

the GRE1 and GRE2 resistors allowing for an alternate form

factor and increased power/resistance capabilities. With a

robust all welded construction, Milwaukee resistor grid

resistors are designed using stainless steel resistance

elements to absorb high energy pulses and high power

applications.

CONTACT THE FACTORY FOR CUSTOM

DESIGN AND OPTIONS FOR STANDARD

DESIGN

Options include: custom mounting configurations, custom

IP rated enclosures, element size / shape, power, multiple

resistors in a single enclosure, etc.

For custom designs please include: duty cycle, total power

and resistance and mounting requirements.

FEATURES

• GRE3 high power capability to 36 kW at 40 °C

• Standard indoor and outdoor enclosure options

• All welded construction with double insulation

• Modular or custom designs available

• Multiple terminal taps available

• Material categorization: for definitions of compliance

APPLICATIONS OF GRID RESISTORS

Dynamic Braking

When an electric motor driven load is being decelerated, the

motor acts as a generator, converting kinetic energy of the

load to electrical energy. The dynamic braking circuit

converts this electrical energy into heat to slow the load,

through the use of dynamic braking resistors. Braking

resistors ensure proper motor operation, allow heavy loads

to stop quickly and protect the drive from damage.

Furthermore, dynamic braking resistors that are improperly

cooled, incorrectly sized, physically damaged or electrically

failed can cause costly unwanted down time

Harmonic Filters

Within a harmonic filter installation the filter resistors are

used to dissipate unwanted harmonic frequencies as heat.

Load Banks

Custom designed resistive load banks allow for load

simulation of many electrical applications for testing

purposes.

Notes

• Listed ratings are for individual resistor banks only. Multiple resistor banks can be combined to achieve resultant power ratings of up to

100 kW+

• Standard resistor banks are highlighted in bold

Ω

CONTACT INFORMATION

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

POWER RATING

OF RESISTOR BANK

W

RESISTANCE

RANGE

Ω

TOLERANCE

± %

TEMPERATURE

± ppm/°C

GLOBAL PART

GRE3

6000

0.08 to 40

10

± 365

GRE3AxxxxxK00N0000

GRE3

9000

0.12 to 60

10

± 365

GRE3BxxxxxK00N0000

GRE3

12 000

0.16 to 80

10

± 365

GRE3CxxxxxK00N0000

GRE3

15 000

0.2 to 100

10

± 365

GRE3DxxxxxK00N0000

GRE3

18 000

0.24 to 120

10

± 365

GRE3ExxxxxK00N0000

GRE3

21 000

0.28 to 140

10

± 365

GRE3FxxxxxK00N0000

GRE3

24 000

0.32 to 160

10

± 365

GRE3GxxxxxK00N0000

GRE3

27 000

0.36 to 180

10

± 365

GRE3HxxxxxK00N0000

GRE3

30 000

0.4 to 200

10

± 365

GRE3JxxxxxK00N0000

GRE3

33 000

0.44 to 220

10

± 365

GRE3KxxxxxK00N0000

GRE3

36 000

0.48 to 240

10

± 365

GRE3LxxxxxK00N0000