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 Product name： BX7 series sliding line variable resistor
specification： BX7 series sliding line variable resistor
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Category： low-voltage electrical apparatus -- rheostat
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 Price： factory price
Brand： Shanghai
Place of Origin： China
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 Available Quantity： batch
delivery cycle： Spot goods (or inquire by telephone)
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  Shanghai Beiyuan Industry and Trade Co.,Ltd
+86-21-66770508
+86-13916500500

Email 91way@163.com
Wechat 13916500500(Wechat)

BX7 series sliding line variable resistorDetailed product description：Column tabs
Model: BX78
Features: The resistance wire has undergone oxidation treatment, with continuously adjustable resistance value, high power, easy and stable installation, and beautiful appearance;
Application: Used for experimental circuits with AC 50Hz, rated voltage of 500V or DC not exceeding 440V, teaching demonstrations, as well as power generation and DC motor excitation speed regulation,
Operating environment: rated power temperature (+70 ℃);

Structural form: Wiring terminal leads, both single tube and double tube can be used;

BX7-21-24 can produce 60A, 100A, and 120A specifications

External dimensions and main technical indicators

Specifications Rated current (A)/resistance value (Ω) Dimensions (mm)
model original
type
number		 zero point one zero point two zero point three zero point five zero point eight one one point five two two point five three three point five four point five six seven eight ten thirteen fifteen twenty twenty-two point five thirty fifty pipe
path

long

 wide tall
BX7-11 RXH-A8 5K 1.9K 1.1K six hundred two
five
0		 one
four
0		 one
0
0		 five
0		 three
five		 two
three		 seventeen ten six point five four point seven three two point five one point five one point one zero point seven five zero point five five zero point four zero point one three single
Tube (64)		 two
six
five		 nine
0		 one
three
five
BX7-12 RXH-A10 7K 2.6K 1.5K eight hundred three
five
0		 one
nine
0		 one
four
0		 seven
0		 four
five		 three
two		 twenty-three fifteen nine six four three point five two one point five one zero point seven five zero point five five zero point one nine three
two
five
BX7-13 RXH-A12 8.7K 3.2K 1.9K 1K four
two
0		 two
four
0		 one
eight
0		 nine
0		 five
five		 four
0		 thirty eighteen twelve eight five four point five two point five one point nine one point three zero point nine five zero point seven zero point two four three
seven
0
BX7-14 RXH-A14 10.5K 4K 2.3K 1.2K five
0
0		 two
nine
0		 two
one
0		 one
0
0		 seven
0		 five
0		 thirty-five twenty-two fifteen ten six point five five point five three two point three one point five one point one zero point eight three zero point two eight four
two
0
BX7-15 RXH-A16 12.5K 4.5K 2.7K 1.4K six
0
0		 three
four
0		 two
five
0		 one
two
0		 eight
0		 five
five		 forty twenty-five eighteen twelve seven point five six point five three point five two point six one point eight one point three zero point nine seven zero point three two four
seven
0
BX7-16 RXH-A18 14.5K 5K 3K 1.6K seven
0
0		 three
nine
0		 two
eight
0		 one
four
0		 nine
0		 six
five		 forty-eight thirty twenty fourteen eight point five seven point five four point two three two one point five one point one zero point three six five
two
0
BX7-21 RXH-B12 17.5K 6.4K 3.8K 2K eight
four
0		 four
eight
0		 three
six
0		 one
eight
0		 one
one
0		 eight
0		 sixty thirty-six twenty-four sixteen ten nine five three point eight two point six one point nine one point four zero point four eight double
pipesixty-four
*2		 three
seven
0		 one
seven
five		 one
five
0
BX7-22 RXH-B14 21K 8K 4.6K 2.4K one
K		 five
eight
0		 four
two
0		 two
0
0		 one
four
0		 one
0
0		 seventy forty-four thirty twenty thirteen eleven six four point five three two point two one point seven zero point five six four
two
0
BX7-23 RXH-B16 25K 9K 5.4K 2.8K one
.
two
K		 six
eight
0		 five
0
0		 two
four
0		 one
six
0		 one
one
0		 eighty fifty thirty-six twenty-four fifteen thirteen seven five point two three point five two point six one point nine zero point six four four
seven
0
BX7-24 RXH-B18 29K 10K 6K 3.2K one
.
four
K		 seven
eight
0		 five
six
0		 two
eight
0		 one
eight
0		 one
three
0		 ninety-five sixty forty twenty-eight seventeen fifteen eight point five six four three two point one zero point seven two five
two
0

Main inspection items, test methods, and performance requirements

Inspection Item Performance Requirements Test Method
Temperature coefficient of resistance

≤±250(×10-6/℃)

-55℃/+20℃  20℃/+125℃

terminal strength

no shedding

 8Kg, bend continuously twice for 30 seconds
rated load Δ R ≤± (1% R+0.1 Ω), surface temperature rise ≤ 350 ℃ 40 ℃, rated voltage, 1 hour
Withstand Voltage No breakdown or arcing 2500V DC，1min
Room temperature durability ΔR≤±(3%R+0.1Ω)

Rated voltage, powered on for 90 minutes, stopped for 30 minutes, for a total of 500 hours

Non combustibility

Not burning

1 to 6 times the rated power, 5 minutes average

Short term overload

ΔR≤±(2%R+0.1Ω)

 10 times rated power, 5 seconds
insulation resistance value

1000MΩ

 1000V DC
vibration

ΔR≤±(3%R+0.1Ω)

10～500Hz  98m/stwo1.5m

Strength of resistor No damage, no detachment 30Kg,30s
steady-state heat and humidity

ΔR≤±(3%R+0.1Ω)

 +40 ± 2 ℃ humidity 90-95% 240h


BX7 series sliding line variable resistor

BX7 series sliding line variable resistor
BX7 series sliding line variable resistor（schematic diagram）
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