RARA ULM2800 Series

Product Features

Metal clad wire wound resistor
Tab connections
Inductive or non-inductive design
Insulation resistance of 20MΩ minimum
Temperature range of -55°C up to +200°C
UL approved
Metal cover type with an extruded aluminium housing
Short time overload of 10 x power rating is 5 seconds

Applications

The ULM2800 metal clad wire wound resistor series from RARA offers a power rating of up to 750W in free air, with available resistance values between 3Ω and 135Ω (inductive design) or between 0.7Ω and 33.5Ω (non-inductive design). These high power resistors are available with tolerances of ±1.0%, ±5.0% and ±10.0% as standard with tab terminals, as well as inductive or non-inductive resistive windings. The ULM2800 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 -55°C up to +200°C

Metal clad wire wound resistor
Tab terminal connections
Inductive resistance ranges available between 3Ω and 135Ω
Non-inductive resistance ranges available between 0.7Ω and 33.5Ω
TCR of +260 ppm/°C maximum
Tolerance values available of ±1.0%, ±5.0% and ±10.0%
Power rating of 750W in free air
Insulation resistance of 20MΩ minimum
Metal cover type with an extruded aluminium housing
UL approved
Temperature range between -55°C and +200°C
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

The below table gives the specifications available for the ULM series including the ULM2800 resistors:

Extended ohmic ranges are available, please contact us for further details.

Inductive or Non Inductive
Resistance Value
Termination / Connection Type
Tolerance
Clear

Custom resistance value (Ω)
Custom AT Range (AT)
Custom Capacity (lbs)
Custom Pressure (Bar/PSI)
Custom Resistance Value Element 1 (Ω)
Custom Resistance Value Element 2 (Ω)
Custom lead length (mm)
Custom lead length (inches)

Quantity

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Specifications

Weight	4.30000 kg
Dimensions	100.00 x 50.00 x 550.00mm
Inductive or Non Inductive	Inductive, Non Inductive
Maximum Resistance	135Ω
Minimum Resistance	0.7Ω
Power Rating	750W
Resistance Value	Custom (0.7Ω – 3Ω), Custom (3Ω – 33.5Ω), Custom (33.5Ω – 135Ω)
Series / Model	ULM
Temperature Coefficient	±260 ppm/°C
Termination / Connection Type	Flying Leads, Tab Terminals
Tolerance	±1%, ±5%, ±10%

RARA IRM and ULM 1600 to 2800 Series Technical Library

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