Variable Power Wire Wound Resistor-VR

A C-shaped ceramic resistor is wound with copper or chromium-alloy wire as a resistance element. Except for the slide contact surface, the entire component is coated with a high-temperature, non-flammable resin. After cooling and drying, insulation is applied through a high-temperature process. Then, a centered rotating adjuster component is installed, which slides along the resistance element and varies the resistance to the desired value. The scope of the application includes educational modeling, load simulations, industrial machinery RPM adjustment, voltage and current adjustment, instruments, and automated control installations. For custom specifications, please Contact Us to discuss the details.
Dimensions Spec- F Type
POWER
RATING
DIMENSIONS(m/m) RESISTANCE
RANGE (Ω)
A B C D E F G H I J K Weight
25W 2.5 3.2 22 3/8” 6×12 42 50 50 11 5 10 74/g 5Ω-2.5KΩ
50W 4.2 4.2 28 3/8” 6×12 64 60 70 11 8 14 160/g 7Ω-3.5KΩ
100W 4.2 4.2 42 3/8” 6×12 85 75 90 11 8 14 372/g 10Ω-5KΩ
Dimensions Spec- H Type
POWER
RATING
DIMENSIONS(m/m) RESISTANCE
RANGE (Ω)
A±1 B±1 C±1 D±0.3 E±1 F±1 G±0.1 H±0.1 θ
100W 31 98 53 6 84 51 4 4 30° 25Ω-7.5KΩ
200W 31 119 68 8 105 60 4 4 30° 30Ω-10KΩ
300W 31 119 93 8 105 60 4 4 30° 25Ω-500Ω
500W 52 173 105 12 155 55 6 6 30° 25Ω-1KΩ
Rated continuous Working Voltage (RCWV) =:
Part Number
VR F 25W 10R K
Type
VR Variable
Type
F
H
Power Rating
25W
50W
100W
200W
300W
500W
Resistance
1R
10R 10Ω
100R 100Ω
1K 1KΩ
Tolerance
K ± 10%
Download Variable Power Wire Wound Resistor Spec(pdf)
Max-Quality Electric Co; LTD
No.566, Dahu Rd., Yingge Dist., New Taipei City 239, Taiwan (R.O.C.)
Tel: +886-2-2678-2566~9(4 lines)
Fax: +886-2-2678-7606
http://www.resistor.tw
E-mail:curtis@resistor.tw
E-mail:odelia@resistor.tw
E-mail:mqec.hsu@msa.hinet.net