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  • RARA

Metal Clad Wire Wound Resistors

RARA ULM2000

  • Metal clad wire wound resistor
  • Resistance options from 0.45ฮฉ up to 133ฮฉ
  • Power rating of up to 650W (on heatsink)
  • Tolerance options between ยฑ1% and ยฑ10.0%
  • TCR of +260 ppm/ยฐC maximum
  • For Non UL Approval see the IRM
  • Compliant
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Frequently Asked Questions
Application Notes

The ULM2000 metal clad wire wound resistor series from RARA offers a power rating of up to 650W in free air, with available resistance values between 2ฮฉ and 113ฮฉ (inductive design) or between 0.45ฮฉ and 30.5ฮฉ (non-inductive design). These high power resistors are available with tolerances of ยฑ1.0%, ยฑ5.0% and ยฑ10.0% as standard with tab terminals, as well as inductive or non-inductive resistive windings. The ULM2000 series from RARA are UL approved metal cover type with an extruded aluminium housing providing strong and rugged protection all with a temperature range from -55ยฐC up to +200ยฐC

  • Metal clad wire wound resistor
  • Tab terminal connections
  • Inductive resistance ranges available between 2ฮฉ and 113ฮฉ
  • Non-inductive resistance ranges available between 0.45ฮฉ and 30.5ฮฉ
  • TCR of +260 ppm/ยฐC maximum
  • Tolerance values available of ยฑ1.0%, ยฑ5.0% and ยฑ10.0%
  • Power rating of 650W in free air
  • Insulation resistance of 20Mฮฉ minimum
  • Metal cover type with an extruded aluminium housing
  • UL approved
  • Temperature range between -55ยฐC and +200ยฐC
  • Short time overload of 10 x power rating for 5 seconds

Typical applications for the ULM series include:

  • Motor drives
  • Braking and snubbing applications
  • Power sources for industrial equipment

Specifications

Weight 3.10000 kg
Dimensions 100.00 x 50.00 x 400.00mm
Product Type

, ,

Series / Model

Power Rating

Minimum Resistance

0.45ฮฉ
Maximum Resistance

113ฮฉ
Tolerance

, ,

Temperature Coefficient

Insulation Resistance

20Mฮฉ minimum
Inductive or Non Inductive

Inductive, Non Inductive
Termination / Connection

Flying Leads, Tab Terminals
Temperature Range

-55 to +200ยฐC

Ordering Info

Below is the model number configuration for the ULM series from RARA.
Ordering example: ULM6000.75ฮฉK
ULMXXXXXXXXฮฉXFLXXX

Series/Model (ULMXXX)

ULM2000

Inductive/Non-Inductive (X)

(Blank)ย  ย  ย  Inductive
Nย  ย  ย  Non-Inductive

Resistance Value (XXXXฮฉ)

Resistance value expressed in ohms, for example 220.5ฮฉ or 2ฮฉ.

Tolerance (X)

F
ยฑ1%
J
ยฑ5%
K
ยฑ10%

Termination (FLXXX)

FL XXXย  ย  ย  Flying Lead **
(Blank)ย  Tab Terminal

* Defined by the resistance value chosen, see datasheet for full details
** Please include requested lead length with request, for example, FL300 for 300mm flying leads

Due to the technical complexity nature of these components, complete specifications, performance data, dimensional information and configuration options are provided within the product datasheet.

Product Variations

SKUResistance ValueToleranceInductive or Non InductiveTermination / ConnectionLead Length
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ1%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ1%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ10%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ10%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ5%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (0.45โ„ฆ - 2โ„ฆ)ยฑ5%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ1%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ1%InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ1%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ1%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ10%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ10%InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ10%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ10%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ5%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ5%InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ5%Non InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (2โ„ฆ -30.5โ„ฆ)ยฑ5%Non InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ1%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ1%InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ10%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ10%InductiveTab TerminalsNo cable
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ5%InductiveFlying LeadsCustom (mm)
RARA ULM2000 SeriesCustom (30.5โ„ฆ - 113โ„ฆ)ยฑ5%InductiveTab TerminalsNo cable

ULM Series Products

Electronic Components

 Product nameDimensionsPower RatingMinimum ResistanceMaximum ResistanceToleranceTemperature CoefficientDatasheet 
RARA ULM600RARA ULM60059.00 x 61.00 x 235.00mm330W, 600W0.1ฮฉ94ฮฉยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM800RARA ULM80059.00 x 61.00 x 285.00mm360W, 800W0.1ฮฉ112ฮฉยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM1000RARA ULM100059.00 x 61.00 x 335.00mm400W, 1kW0.1ฮฉ140ฮฉยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM1200RARA ULM120059.00 x 61.00 x 405.00mm480W, 1.2kW0.1ฮฉ160ฮฉยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM1600 RARA ULM1600100.00 x 50.00 x 330.00mm570W0.3ฮฉ88ฮฉยฑ1%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM2000 RARA ULM2000100.00 x 50.00 x 400.00mm650W0.45ฮฉ113ฮฉยฑ1%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM2400 RARA ULM2400100.00 x 50.00 x 480.00mm720W0.6ฮฉ144ฮฉยฑ1%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA ULM2800 RARA ULM2800100.00 x 50.00 x 550.00mm750W0.7ฮฉ135ฮฉยฑ1%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product

Resources

Product Datasheet

Supporting Manufacturer Information

Related Products

RARA IRM2000

View RARA IRM2000

RARA ULM1600

View RARA ULM1600

RARA ULM2400

View RARA ULM2400

RARA ULM2800

View RARA ULM2800

Metal Clad Wire Wound Resistors

RARA ULM2000

Datasheet
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