RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors

Flat Type Metal Clad Wire Wound Resistors

RARA IRF300

  • Flat type metal clad wire wound resistor
  • Resistance options from 1Ω up to 3.5kΩ
  • Power rating of 300W (on a heat sink)
  • Tolerance options between ±0.5% and ±10.0%
  • TCR of +260 ppm/°C maximum
  • For UL Approval see the ULF Series
  • RARA
  • Compliant

Specifications

Weight 335.00000 kg
Dimensions 10.00 x 80.00 x 210.00mm
Product Type

, ,

Series / Model

Power Rating

Minimum Resistance

1Ω

Maximum Resistance

3.5kΩ

Tolerance

, , , ,

Temperature Coefficient

Insulation Resistance

20MΩ minimum

Filling Material

Cement, Silicone

Temperature Range

-55 to +150°C (Silicone), -55 to +200°C

RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors

Flat Type Metal Clad Wire Wound Resistors

RARA IRF300

  • Flat type metal clad wire wound resistor
  • Resistance options from 1Ω up to 3.5kΩ
  • Power rating of 300W (on a heat sink)
  • Tolerance options between ±0.5% and ±10.0%
  • TCR of +260 ppm/°C maximum
  • For UL Approval see the ULF Series
  • RARA
  • Compliant

Request a Quote

Product Datasheet

Supporting Manufacturer Information

Talk to our engineering team

Get help specifying or customising the right product for your application.

Related Load Banks items

RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors
RARA IRF100
RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors
RARA IRF150
RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors
RARA IRF200
RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors
RARA IRF250

Custom Component Solutions

Working alongside your design team from the earliest stage, we help you select the right part for the application and, where a standard part will not do, develop customised components with our manufacturing partners such as lead length, termination and package size.

Related RARA IRF300 Components

The IRF300 flat type metal clad wire wound resistor series from RARA, offers a power rating of up to 300W on a heat sink and available resistance values between 1Ω and 3.5kΩ. These high power and low inductance resistors are designed for industrial and other applications where space is at a premium, the flat design also allows for excellent heat dissipation. The IRF300 series from RARA offers an extruded aluminium housing which provides strong and rugged protection, with options of cement or silicone filling materials as well as tolerances as low as ±0.5%. This resistor series offers a temperature range from -55°C up to +200°C (cement filling material).

  • Flat space saving metal clad wire wound resistor
  • Cement (standard) or silicone filling material with an extruded aluminium housing
  • 300mm flying leads
  • Resistance ranges available between 1Ω and 3.5kΩ
  • TCR of +260 ppm/°C maximum
  • Tolerance values available of ±0.5%, ±1.0%, ±2.0%, ±5.0% and ±10.0%
  • Power rating of 300W (on a heat sink)
  • Insulation resistance of 20MΩ minimum
  • Temperature range between -55°C and +200°C (cement) or -55°C and +150°C (silicone)
  • Short time overload of 5 x power rating for 5 seconds

Typical applications for the IRF series include:

  • Motor drives
  • Braking and snubbing applications
  • Power sources for industrial equipment
RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors

Flat Type Metal Clad Wire Wound Resistors

RARA IRF300