RX24 aluminum encased power wire - wound resistors

Features

• High power and rugged, shock - proof

• Good heat - sink

• Low TCR, and good linearity

Applications

• Used in large - size machinery

• Load test, power supply and electricity

• Frequency inverter

• Serve motor and other harsh industry environment

Dimensions (mm)

Rated Power

(RX resistor power ratings are to be mounted with the following heat sink):

• RX24 7.5W/12.5W: 102×152×51×1mm(832cm²)

• RX24 25W: 127×178×51×1mm(1077cm²)

• RX24 50W: 305×305×1.5mm(1877cm²)

• RX100W/250W: 305×305×3.2mm(1896cm²)

• RX24 75W: 305×305×1.5mm(1877cm²)

• RX24 150W: 305×305×3.2mm(1896cm²)

• RX24 300W: 3750cm²×3.2mm

Ambient Temperature vs Derating Curve

(Derating is required for ambient temperatures above 25, see the following graph.) (Curves A, B, C apply to operation of unmounted resistors.) (Curves D applies to all types mounted with specified heat sink.)

• A: RX24 7.5W/12.5W unmounted

• B: RX24 75W resistor without mounting

• C: RE24 150W; 300W resistor without mounting

• D: mounted with recommended aluminum heat sink

Reduced Heat Sink Derating Curve

Derating is also required when recommended heat sink area is reduced.

• A: RX24 7.5W/12.5W

• B: RX24 75W

• C: RX24 50W/100W/250W

Technical Specifications

NOTE: Figures in parentheses on RX24 7.5W/12.5W is wattage, same as that value on parts, wattage printed on parts, new construction allows these resistors to be rated at higher wattage but will only be printed with the higher wattage on customer request. Please contact us for the production of non - standard resistors with the higher tolerance and 0.1% tolerance.