Product name: RXHG-200 series cement-coated wire wound resistors
Type: RXHG-200
Product introduction: RXHG series cement-coated wire wound resistor is a kind of power wire wound resistor. The products use undee alloy belt and enwind on ceramic framework side stand, the surface is covered with dope which is insulating and can resistance to high temperature , it is good at emit heat and has the fixing bracket, the resistor has the ability of high power, low resistance, resistance to heat, easy to fix etc.
Purpose: Cement-coated wire wound resistor is used in transducer trig, derrick and as load resistor widely. It has be applied in machine and electricity industry of elevator, machine tool, jointing, and had replaced import.
■ Electrical and Mechanical specifications
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Characteristics
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Limits
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Test methods
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resistance and resistance tolerance
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1Ω≤R±5%（J） ,1Ω>R±10%（K）
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JIS-C-5202 5-1
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Power rating load
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5~200W≤275℃, >200W≤350℃
the highest temperature on the surface
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JIS-C-5202 5-4
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Short-time overload
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ΔR≤±（5%R+0.05Ω）
no evidence of mechanical damage
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JIS-C-5202 5-5
1000% rated power 5 seconds
≥750W
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Insulation resistance
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R≥100MΩ 1min
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JIS-C-5202 5-6 DC500V
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Dielectric withstanding voltage
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ΔR≤±（0.1%R+0.05）
no evidence of mechanical damage or insulation breakdown
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JIS-C-5202 5-7
AC：1500V
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Temperature coefficient
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±260PPM/℃
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JIS-C-5202 5-2 b
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Terminal strength
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not loosely and no evidence of mechanical damage
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JIS-C-5202 6-1(2)
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Resistor strength
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no evidence of mechanical damage
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JIS-C-5202 6-2
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Vibration
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ΔR≤±（0.1%R+0.05Ω）
no evidence of mechanical damage
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JIS-C-5202 6-3
1.5mm 10~55 Hz/ 1Minute
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Solderability
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95% coverage min.
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JIS-C-5202 6-5
270℃ 5 seconds
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■ Environmental specifications
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Characteristics
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Limits
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Test methods
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Heat resistance
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no deterioration of protective coatings or markings
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JIS-C-5202 7-2
350℃ 2hours
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Thermal shock
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no evidence of mechanical damage
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JIS-C-5202 7-3
After 30minutes rating load , 55℃ 15mintues
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Humidity
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ΔR≤±（5%R+0.05Ω）, ≥10MΩ
no deterioration of protective coatings or markings
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JIS-C-5202 7-5 DC100 40℃ 95%RH 500hours
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Humidity Load life
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ΔR≤±（5%R±0.05Ω）
no evidence of mechanical damage
no deterioration of protective coatings or markings
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JIS-C-5202 7-10 100% rated power load 90 min ON 30 min OFF 500hours
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■ Power Derating Curve
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environment temperature
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0~20℃
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above 20℃
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pow derating
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100%
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see the fig.
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■ classified standard
● how to order
● type explanation
RXHG is the moire wire-wound cement-coating fixed resistor
● structure explanation
RXHG-A not using the porcelain sheet to separate the resistor body from the installation frame.
RXHG-B using the porcelain sheet to separate the resistor body from the installation frame.
RXHG-D using the porcelain sheet on both of the two terminals and they are
series-connected by a screw bolt.
