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DRS Power Adjustable Resistors
Power Round-Wire Adjustable Resistors
Adjustable Resistor for Applications Requiring Settings at Different Resistance Values
Preview Choose Token's Power DRS adjustable resistor for applications requiring settings at different resistance values. These wirewound resistors are equipped with an adjustable lug, making them ideal for adjusting circuits, obtaining unique resistance values and setting equipment to meet various line voltages. DRS resistors feature a hollow core to permit secure fastening with thru bolts with washers or spring-type clips. They also offer the durability of lead free vitreous enamel, or silicone coating and all-welded construction. The Power Adjustable DRS Resistor is RoHS compliant and lead free. For non-standard technical requirements and custom special applications, please contact us. To Calculate Max. Amperes : Voltage = (Watts x Ohms) 1/2 Power Rating : Adjustability is 10% to 90% of full resistance value. Wattage is proportional to this adjusted resistance value. Example: If the lug is set at half resistance, the wattage is reduced by approximately one-half. Setting the lug at an intermediate point reduces the wattage rating by approximately the same proportion. Based on 25C free air rating. The stated wattage rating applies only when the entire resistance is in the circuit. Features : Adjustable lug supplied. High wattage applications. Flame resistant and rugged lead coating. Resistance Tolerance: J(5%), K(10%). Terminals suitable for soldering or bolt connection. Options : Special temperature coefficients, tolerances Adjustable, fixed, or tapped styles are available. Non-inductive Ayrton Perry windings can be specified. Special terminals available for non-standard applications. Single and double quick connect terminals can be specified. Standard lug terminals available with or without terminal hardware. Version 2010
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(DRS-A) 20W ~ 1300W Dimensions
L G E H D
DRS Power Adjustable Resistors
M
N
F J I O
K
A
C B
Power Adjustable Resistor (DRS-A) N - No mount Dimensions
Power Adjustable Resistor (DRS-A) Z - Vertical mount Dimensions
Power Adjustable Resistor (DRS-A) G - Horizontal mount Dimensions
Wattage Rating 20W 30W 40W 50W 60W 80W 100W 120W 150W 160W 200W 250W 300W 400W 500W 600W 700W 800W 1000W 1300W
Dimensions (mm) A 60 80 110 110 90 110 140 160 195 185 210 210 260 330 330 400 460 460 540 650 B 17 17 17 25 28 28 28 28 28 35 35 40 40 40 50 50 50 60 60 65 C 8 8 8 16 18 18 18 18 18 24 24 25 25 25 35 35 35 40 40 42 D 22 22 22 30 32 32 32 32 32 36 36 38 38 38 50 50 50 55 55 62 E 5 5 5 8 8 8 8 8 8 10 10 12 12 12 12 12 12 15 15 15 F 78 100 128 150 130 150 180 200 235 225 250 250 300 370 380 450 510 515 595 702 G 2 2 2 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 H 12 12 12 18 19 19 19 19 19 19 19 20 20 20 25 25 25 30 30 30 I 4 4 4 6 6 6 6 6 6 8 8 8 8 8 9 9 9 10 10 10 J 90 112 140 166 146 166 196 216 251 245 274 274 320 395 400 470 530 535 615 722 K 36 36 36 58 60 60 60 60 60 76 76 78 78 78 100 100 100 110 110 115 L 1.0 1.0 1.0 1.2 1.2 1.2 1.2 1.2 1.2 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 M 6 6 6 6 6 6 6 6 6 6 6 8 8 8 10 10 10 N 6 6 6 O 16 16 16 27 27 27 27 27 27 34 34 34 34 34 40 40 40 50 50 50
Max. Resistance Value() 1~1K 1~1.5K 1~2K 0.1~5K 0.1~6K 0.1~8K 0.1~10K 0.1~12K 0.3~15K 0.3~16K 0.3~20K 0.5~25K 0.5~30K 0.5~40K 0.5~50K 0.8~60K 0.8~70K 0.8~80K 1~100K 1~130K
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(DRS-B) 15W ~ 20000W Dimensions
d N
DRS Power Adjustable Resistors
M
L2 L3 q Q
H
L1
R
Adjustable Power Resistor (DRS-B) Z - Vertical mount Dimensions
Adjustable Power Resistor (DRS-B) N - No mount Dimensions
Adjustable Power Resistor (DRS-B) G - Horizontal mount Dimensions
Wattage Rating 15W 20W 25W 30W 40W 50W 80W 100W 150W 200W 250W 300W 400W 500W 600W 700W 800W 1000W 1500W 2000W 2500W 3000W 4000W 5000W 6000W 10000W 12000W 15000W 20000W
R 15 15 20 20 20 28 28 28 28 28 28 40 40 50 50 50 70 70 70 70 70 70 100 100 100 150 150 150 150
L1 45 50 50 70 87 90 90 170 215 267 267 267 330 330 330 400 300 300 415 510 600 600 430 500 600 600 660 660 1000
L2 65 70 80 100 115 115 115 195 240 292 292 300 365 365 365 435 320 320 435 530 620 620 450 620 720 625 685 685 1030
Dimensions (mm) L3 H N 85 40 6 90 40 6 100 50 6 120 50 6 137 50 6 143 68 9 143 68 9 223 68 9 268 68 9 320 68 9 320 68 9 343 90 10 406 90 10 415 98 10 415 98 10 485 95 10 362 138 15 362 138 15 477 138 15 572 138 15 662 138 15 662 138 15 521 185 15 691 185 15 791 185 15 720 350 30 780 350 30 780 350 30 1120 350 30
d 3.5 3.5 3.5 3.5 3.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 6 6 6 8 8 8 8 8 8 8 8 8 8 8 8 8
M 3.5 3.5 5 5 5 5.5 5.5 5.5 5.5 5.5 5.5 6 6 8.5 8.5 8.5 -
q 4.5 4.5 5 5 5 6 6 6 6 6 6 6 6 8 8 8 8 8 8 8 8 8 8 8 8 10 10 10 10
Q 15 15 20 20 20 27 27 27 27 27 27 39 39 49 49 49 69 69 69 69 69 69 99 99 99 150 150 150 150
Resistance Range 1~1K 1~1K 2~1K 2~1K 2~1K 5~1K 5~2K 10~3K 10~3K 10~5K 10~5K 20~5K 20~5K 20~5K 20~5K 20~5K 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500 40~500
Version 2010
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Specifications Test Item Resistance tolerance
DRS Power Adjustable Resistors
Test Methods JIS-C-5202 5-1 Characterstics Resistance Nominal Tolerance 1R 1>R 5%(J) 10%(K) 200PPM/C MAX R/R(0.5%+0.1) Surface temperature up 350C MAX Free of appearance or structural irregularity R/R (2%+0.1) 100M min
Temperature coefficient JIS-C-5202 5-2 Load rating Short-term overload Insulation resistance Dielectric withstanding voltage Terminal strength Vibration JIS-C-5202 5-4
Thermal shock Humidity Load life Flame retardation REMARKS:
JIS-C-5202 5-5 1000% rated wattage 5 seconds JIS-C-5202 5-6 500VDC JIS-C-5202 5-7 Free of appearance or structural irregularity 1000VDC 1 minute Between terminal and R/R (0.1%+0.05) anchor stand JIS-C-5202 6-1 8kg 30 seconds Free of appearance or structural irregularity JIS-C-5202 6-3 Free of appearance or structural irregularity 1.5m/m 10 ~ 50 ~ 10 Hz/min X-Y-Z Surface coating crack R/R (1%+0.05) 2 hours each JIS-C-5202 7-3 Free of structural irregularity Room temp 30 minutes ON-55C R/R (2%+0.1) 15 minutes OFF JIS-C-5202 7-5 Free of appearance or structural irregularity 40C 90%RH 240 hours Surface coating crack R/R (3%+0.1) JIS-C-5202 7-10 Free of appearance or structural irregularity 90 minutes ON - 30 minutes OFF 500 hours Surface coating crack R/R (1%+0.05) JIS-C-5202 7-13-3-2 US UL-94 flame retardation test V-0 grade 100% - 600% rated wattage load noncombustible 1. Resistance and resistance tolerance were tested in-house with micro resistance meter. 2. Coating refers to UL-certified data provided by supplier.
DQS - Application Notes
Determination of End Resistance Value of FVR, DQS, DSRA, DSRB, BSR, BSQ:
Resistance Range means you can choose one maximum resistance value (End resistance value) at one of FVR, DQS, DSRA, DSRB, BSR, BSQ VR (Variable Resistor) type. After End Resistance Value confirmed, the minimum resistance (start resistance value) will be determined by depending on resistance of wire and wirewound type.
Power Rating of Variable Resistor:
Product type Rated Wattage -
The part Nunber formation of FVR, DQS, DSRA, DSRB, BSR, BSQ: Resistance Value () - Resistance Tolerance
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DRS Power Adjustable Resistors
Product type means one of FVR, DQS, DSRA, DSRB, BSR, BSQ. Rated Wattage means power rating at End Resistance Value. Resistance Value () means maximum resistance value (End Resistance Value). Resistance Tolerance means precision range of End Resistance Value. 1. Power Rating of VR (Variable Resistor) is determined by the maximum resistance value (End Resistance Value). 2. Resistance and Power Rating should be decreased while you are adjusting the screw.
Notes:
Adjustability is 10% to 90% of full resistance value. Wattage is proportional to this adjusted resistance value.
Power Rating:
Based on 25C free air rating. The stated wattage rating applies only when the entire resistance is in the circuit. Setting the lug at an intermediate point reduces the wattage rating by approximately the same proportion. Example: If the lug is set at half resistance, the wattage is reduced by approximately one-half.
If you need current constant type or special specifications, please feel free to cntact us.
How to Order
DRSA Part Number: DRSA
DRSB
600W
250R
J Resistance Tolerance (%)
Code J K
G
Rated Power (W): 20W~1300W Resistance Value ():
Code
Resistance Tolerance
15W~20000W Resistance Value
5% 10%
0R1 1R 10R 100R 1K 10K 100K
0.1 1 10 100 1K 10K 100K
Assembly Method
Code N C G Z Assembly Method
No mount. Clip mount. Horizontal mount. Vertical mount.
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Version 2010
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