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
Characteristics
|
Limits
|
Test
methods
|
resistance
and resistance tolerance
|
1Ω≤R±5%（J）
,1Ω>R±10%（K）
|
JIS-C-5202
5-1
|
Power
rating load
|
5~200W≤275℃,
>200W≤350℃
the
highest temperature on the surface
|
JIS-C-5202
5-4
|
Short-time
overload
|
ΔR≤±（5%R+0.05Ω）
no
evidence of mechanical damage
|
JIS-C-5202
5-5
1000%
rated power 5 seconds
≥750W
|
Insulation
resistance
|
R≥100MΩ
1min
|
JIS-C-5202
5-6 DC500V
|
Dielectric
withstanding voltage
|
ΔR≤±（0.1%R+0.05）
no
evidence of mechanical damage or insulation breakdown
|
JIS-C-5202
5-7
AC：1500V
|
Temperature
coefficient
|
±260PPM/℃
|
JIS-C-5202
5-2 b
|
Terminal
strength
|
not
loosely and no evidence of mechanical damage
|
JIS-C-5202
6-1(2)
|
Resistor
strength
|
no
evidence of mechanical damage
|
JIS-C-5202
6-2
|
Vibration
|
ΔR≤±（0.1%R+0.05Ω）
no
evidence of mechanical damage
|
JIS-C-5202
6-3
1.5mm
10~55 Hz/ 1Minute
|
Solderability
|
95%
coverage min.
|
JIS-C-5202
6-5
270℃
5 seconds
|
■
Environmental specifications
Characteristics
|
Limits
|
Test
methods
|
Heat
resistance
|
no
deterioration of protective coatings or markings
|
JIS-C-5202
7-2
350℃
2hours
|
Thermal
shock
|
no
evidence of mechanical damage
|
JIS-C-5202
7-3
After
30minutes rating load , 55℃ 15mintues
|
Humidity
|
ΔR≤±（5%R+0.05Ω）,
≥10MΩ
no
deterioration of protective coatings or markings
|
JIS-C-5202
7-5 DC100 40℃ 95%RH 500hours
|
Humidity
Load life
|
ΔR≤±（5%R±0.05Ω）
no
evidence of mechanical damage
no
deterioration of protective coatings or markings
|
JIS-C-5202
7-10 100% rated power load 90 min ON 30 min OFF
500hours
|
■
Power Derating Curve
environment
temperature
|
0~20℃
|
above
20℃
|
pow
derating
|
100%
|
see
the fig.
|
■
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.
