Starbar SE

STARBAR TYPE SE
SILICON CARBIDE HEATING ELEMENTS

GENERAL DESCRIPTION

The spiral STARBARs are made of special high density, reaction bonded silicon carbide. A spiral slot in the hot zone reduces the cross sectional area. This provides the electrical resistance ratio to make the ends cool and the hot zone hot. Special cold ends may be welded to further enhance the resistance ratio.
To provide a low resistance contact surface, the extremities are metallized with aluminum. The electrical connections are made with flat aluminum braids and spring clamps. The terminal ends of the SE element are normally plugged.
SE STARBARs are described be giving the overall length, the heating section length,and the diameter. As an example, SE 36*14*1 is a spiral element 36" overall with a 14" hot zone and 1" in diameter. In millimeters, a SE 914*356*25 is a spiral element 914 mm overall with a 356 mm hot zone and 25 mm in diameter.

INTERCHANGEABLE

*STARBAR SE have possibilities to be interchangeable with RR or other manufactures in U.S.A, Europe and Asian. Please contact us with information on your trans and SCR.

SE ELECTRICAL RESISTANCE

TABLE A
SE STARBAR Dimensions				^^SE Electrical Resistance
Diameter		^*Maximum Overall Length		Ohms Hot Zone		Ohms Cold Ends
MM	Inch	MM	Inch	Ohms/MM	Ohms/Inch	Ohms/MM	Ohms/Inch
10	3/8	762	30	0.01114	0.28300	0.00173	0.04400
13	1/2	785	31	0.00909	0.23093	0.00192	0.04876
16	5/8	865	35	0.00698	0.17729	0.00129	0.03288
19	3/4	1065	43	0.00559	0.14208	0.00097	0.02464
22	7/8	1270	51	0.00507	0.12885	0.00077	0.01968
25	1	1550	62	0.00455	0.11561	0.00058	0.01471
32	1-1/4	1800	72	0.00314	0.07968	0.00038	0.00976
35	1-3/8	1800	72	0.00223	0.05669	0.00022	0.00567
38	1-1/2	1800	72	0.00214	0.05430	0.00025	0.00645
44	1-3/4	2005	80	0.00182	0.04624	0.00022	0.00554
54	2-1/8	2160	86	0.00135	0.03418	0.00016	0.00417
70	2-3/4	2360	94	0.00094	0.02378	0.00011	0.00272
^*Recommended overall length = 79% of listed maximum length
^**All resistance values are +/-20%