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Type RR , Silicon Carbide Heating Elements

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The RR Starbar is a resistance type silicon carbide heating element. Starbars are rod shaped or tubular depending on the diameter. They have a central heating section referred to as a hot zone and two terminal sections called cold ends. There are two types of RR Starbars. (1) The cold ends are impregnated with silicon metal - referred to as one piece, and (2) low resistance cold ends which are furnace welded to the hot zone - referred to as a three piece or LRE (Low Resistance End) type. This lower electrical resistance cold end causes them to operate at a lower temperature. The extremities of the elements are metallized with aluminum to provide a low resistance contact surface to which the electrical connections are made using braided aluminum straps.



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Item #

Diameter

Maximum Overall Length

Hot Zone (Electrical Resistance)

Cold End (Electrical Resistance)

RR-3/8-10 3/8 Inch
10
mm
26 Inch
660
mm
0.3486 Ohms/Inch
0.01372
Ohms/mm
0.01743 Ohms/Inch
0.000686
Ohms/mm
RR-7/16-11 7/16 Inch
11
mm
36 Inch
915
mm
0.2563 Ohms/Inch
0.01009
Ohms/mm
0.01282 Ohms/Inch
0.000505
Ohms/mm
RR-1/2-13 1/2 Inch
13
mm
42 Inch
1090
mm
0.1963 Ohms/Inch
0.00773
Ohms/mm
0.00982 Ohms/Inch
0.000387
Ohms/mm
RR-5/8-16 5/8 Inch
16
mm
50 Inch
1250
mm
0.1262 Ohms/Inch
0.00497
Ohms/mm
0.00631 Ohms/Inch
0.000248
Ohms/mm
RR-3/4-19 3/4 Inch
19
mm
62 Inch
1575
mm
0.0865 Ohms/Inch
0.00341
Ohms/mm
0.00433 Ohms/Inch
0.00017
Ohms/mm
RR-1-25 1/1 Inch
25
mm
74 Inch
1900
mm
0.05 Ohms/Inch
0.00197
Ohms/mm
0.0025 Ohms/Inch
0.000098
Ohms/mm
RR-1-1/4-32 1-1/4 Inch
32
mm
86 Inch
2210
mm
0.0343 Ohms/Inch
0.00134
Ohms/mm
0.00171 Ohms/Inch
0.000067
Ohms/mm
RR-1-3/8-35 1-3/8 Inch
35
mm
90 Inch
2290
mm
0.027 Ohms/Inch
0.00106
Ohms/mm
0.00135 Ohms/Inch
0.000053
Ohms/mm
RR-1-1/2-38 1-1/2 Inch
38
mm
92 Inch
2340
mm
0.0234 Ohms/Inch
0.00092
Ohms/mm
0.00117 Ohms/Inch
0.000046
Ohms/mm
RR-1-3/4-45 1-3/4 Inch
45
mm
104 Inch
2670
mm
0.0165 Ohms/Inch
0.00065
Ohms/mm
0.00082 Ohms/Inch
0.000032
Ohms/mm
RR-2-1/8-54 2-1/8 Inch
54
mm
130 Inch
3300
mm
0.015 Ohms/Inch
0.00059
Ohms/mm
0.00075 Ohms/Inch
0.00003
Ohms/mm
RR-2-3/4-70 2-3/4 Inch
70
mm
130 Inch
3300
mm
.007298 Ohms/Inch .00052 Ohms/Inch
  Results 1 - 12 of 12 1 
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