HTR India - Products - Wire Wound Resistors - Silicone Coated Resistors - RSR (English)
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This document provides information on HTR's silicone coated edge wound power resistors. The resistors, marketed under the RSR series, are designed for heavy duty industrial applications requiring 40W to 500W power ratings and resistance values from R05 to 18R. They have flame retardant silicone coating and are compatible with UL standards. Dimensions, electrical characteristics, typical applications and ordering information are provided for the various models.
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BRACKET
TYPE
102
103
104
Y
±1.0mm
Z
±2mm
H
±2mm
MOUNTING
SLOT
±0.5mm
C
±2mm
B
±2mm
20.0
32.0
48.0
25.0
30.0
32.0
33.0
37.0
57.0
5.5 x 11.0
7.0 x 11.0
7.0 x 11.0
20.0
22.0
23.0
46.0
54.0
82.0
BRACKET
TYPE
X (APPROXIMATE)
(mm)
303
15.0
304
16.0
WIRE WOUND
RESISTORS
SILICONE
COATED
TYPE
RSR
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
PARAMETER/PERFORMANCE TEST & TEST METHOD
PERFORMANCE REQUIREMENTS
Power Rating (Rated Ambient Temperature)
Full Power dissipation at 70°C and linearly derated to zero at 350°C
(Refer Derating curve above).
Resistance Tolerances Available
±10% (K) ± 5(J) on request.
Temperature Range
-55°C to + 350°C with suitable derating as per derating curve above.
Voltage Rating / Limiting Voltage / Max working Voltage
V = PxR
Voltage Proof / Dielectric Withstanding Voltage
(Based on limiting voltage x 2 or 500V whichever is
applicable for 60 secs)
∆R ± [1% + R05]
Temperature Co-efficient
< R10 ± 120 ppm /°C ; < 1R0 ± 80 ppm /°C
> 1R0 ± 60 ppm /°C
Short Time Overload (10 x Rated Power for 5 secs)
∆R ± [2% + R05]
Insulation Resistance (Test Method no. 302 of MIL 202F)
> 1000M (Dry)
> 100M (Wet)
TYPICAL APPLICATIONS
In RSR series, a corrugated alloy tape is wound edgewise or flat onto a ceramic tube which is coated with a silicone cement which is
compatible with UL standards.
This ribbed construction puts both sides of the resistive element in contact with air thus creating a convention area four times greater
than that obtained with normal wire wound resistors.
These resistors are designed primarily to withstand heavy overload surges upto max 7 times their rated wattage for 10 to 15 seconds
(max). This characteristic makes them most suitable for controlling motors requiring high dissipation, low resistance values and high
current capacity.
ORDERING INFORMATION
Series
RSR
HTR Type
Packing
Resistance Value
Tolerance
Type of Mounting Hardware
RR200B/RR200B*
Bulk RR200B/RR200B*
3R0
K
103 / 303
1. For RoHS version - RR200B *
2. For Non inductive type - N RR200B
e : info@htr-india.com](https://image.slidesharecdn.com/rsr-140131063832-phpapp01/85/HTR-India-Products-Wire-Wound-Resistors-Silicone-Coated-Resistors-RSR-English-3-320.jpg)
HTR India - Products - Wire Wound Resistors - Silicone Coated Resistors - RSR (English)
- 1. www.htr-india.com Stainless steel / Nickel - plated Terminations WIRE WOUND RESISTORS SILICONE COATED TYPE Alloy Resistance Strips, Corrugated and Wound Edgewise On Ceramic Substrate RSR SERIES Flame Retardant Silicone Coating EDGE WOUND Silicone Coated Power Resistors Heavy Duty Industrial Applicationss • Type ‘A’ compatible for using with Amp type connectors. • Flame retardant coating compatible with UL standards. • 40W to 500W • R05 to 18R e : info@htr-india.com
- 2. www.htr-india.com PHYSICAL CONFIGURATION WIRE WOUND RESISTORS SILICONE COATED TYPE RSR TYPE POWER RATING at 70°C DIMENSIONS (mm) L ±3 * D ±2 d ±1 W ±0.35 ∅ ld ±0.3 H +2/-0 MOUNTING HARDWARE AVAILABLE RESISTANCE RANGE min max INDICATIVE WEIGHT PER PC (gms) RR40A 40W 75.0 30.0 14.3 4.75 1.4 6.35 102/303 R05 1R9 63.0 RR40B 40W 75.0 30.0 14.3 5.0 3.0 8.5 102/303 R05 1R9 64.5 RR50A 50W 100.0 30.0 14.3 4.75 1.4 6.35 102/303 R07 2R0 80.0 RR50B 50W 100.0 30.0 14.3 5.0 3.0 8.5 102/303 R07 2R0 82.0 RR60A 60W 115.0 30.0 14.3 6.35 1.65 8.5 102/303 R075 2R2 95.0 RR60B 60W 115.0 30.0 14.3 8.0 4.3 11.0 102/303 R075 2R2 97.0 RR80A 80W 130.0 30.0 14.3 6.35 1.65 8.5 102/303 R09 2R5 102.0 RR80B 80W 130.0 30.0 14.3 8.0 4.3 11.0 102/303 R09 3R0 104.0 RR100A 100W 105.0 37.0 19.1 6.35 1.65 8.5 103/303 R10 2R9 112.0 RR100B 100W 105.0 37.0 19.1 8.0 4.3 11.0 103/303 R10 2R9 115.0 RR120A 120W 115.0 37.0 19.1 6.35 1.65 8.5 103/303 R10 4R0 123.0 RR120B 120W 115.0 37.0 19.1 8.0 4.3 11.0 103/303 R10 4R0 125.0 RR150A 150W 140.0 37.0 19.1 6.35 1.65 8.5 103/303 R10 5R0 187.0 RR150B 150W 140.0 37.0 19.1 8.0 4.3 11.0 103/303 R10 5R0 190.0 RR200A 200W 200.0 37.0 19.1 6.35 1.65 8.5 103/303 R10 7R0 242.0 RR200B 200W 200.0 37.0 19.1 8.0 4.3 11.0 103/303 R10 7R0 245.0 RR300A 300W 250.0 48.0 24.0 6.35 1.65 8.5 104/304 R10 10R 573.0 RR300B 300W 250.0 48.0 24.0 8.0 4.3 11.0 104/304 R10 10R 575.0 RR400A 400W 300.0 48.0 24.0 6.35 1.65 8.5 104/304 R10 14R 740.0 RR400B 400W 300.0 48.0 24.0 8.0 4.3 11.0 104/304 R10 14R 744.0 RR500A 500W 300.0 58.0 27.0 6.35 1.65 8.5 104/304 R10 18R 1180.0 RR500B 500W 300.0 58.0 27.0 8.0 4.3 11.0 104/304 R10 18R 1190.0 * D-Dimensions given are indicative and could exceed tolerances given depending on resistance value being wound. • Resistor types suffixed with ‘A’ are compatible with Amp 250 connectors. MOUNTING SPECIFICATIONS e : info@htr-india.com
- 3. www.htr-india.com BRACKET TYPE 102 103 104 Y ±1.0mm Z ±2mm H ±2mm MOUNTING SLOT ±0.5mm C ±2mm B ±2mm 20.0 32.0 48.0 25.0 30.0 32.0 33.0 37.0 57.0 5.5 x 11.0 7.0 x 11.0 7.0 x 11.0 20.0 22.0 23.0 46.0 54.0 82.0 BRACKET TYPE X (APPROXIMATE) (mm) 303 15.0 304 16.0 WIRE WOUND RESISTORS SILICONE COATED TYPE RSR ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA PARAMETER/PERFORMANCE TEST & TEST METHOD PERFORMANCE REQUIREMENTS Power Rating (Rated Ambient Temperature) Full Power dissipation at 70°C and linearly derated to zero at 350°C (Refer Derating curve above). Resistance Tolerances Available ±10% (K) ± 5(J) on request. Temperature Range -55°C to + 350°C with suitable derating as per derating curve above. Voltage Rating / Limiting Voltage / Max working Voltage V = PxR Voltage Proof / Dielectric Withstanding Voltage (Based on limiting voltage x 2 or 500V whichever is applicable for 60 secs) ∆R ± [1% + R05] Temperature Co-efficient < R10 ± 120 ppm /°C ; < 1R0 ± 80 ppm /°C > 1R0 ± 60 ppm /°C Short Time Overload (10 x Rated Power for 5 secs) ∆R ± [2% + R05] Insulation Resistance (Test Method no. 302 of MIL 202F) > 1000M (Dry) > 100M (Wet) TYPICAL APPLICATIONS In RSR series, a corrugated alloy tape is wound edgewise or flat onto a ceramic tube which is coated with a silicone cement which is compatible with UL standards. This ribbed construction puts both sides of the resistive element in contact with air thus creating a convention area four times greater than that obtained with normal wire wound resistors. These resistors are designed primarily to withstand heavy overload surges upto max 7 times their rated wattage for 10 to 15 seconds (max). This characteristic makes them most suitable for controlling motors requiring high dissipation, low resistance values and high current capacity. ORDERING INFORMATION Series RSR HTR Type Packing Resistance Value Tolerance Type of Mounting Hardware RR200B/RR200B* Bulk RR200B/RR200B* 3R0 K 103 / 303 1. For RoHS version - RR200B * 2. For Non inductive type - N RR200B e : info@htr-india.com