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Seamless Incoloy Sheath Strip Heaters

NS & NSL Series

Seamless Incoloy Sheath Strip Heaters | NS & NSL Series

Seamless Incoloy Sheath Strip Heaters

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RoHS
  • 3/4" (1.9 cm) Wide, High Temperature
  • Rugged, Reliable, Premium Quality
  • 500 to 3000 Watt
  • 2 Terminals at One End
  • Seamless Construction
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Descrição

Strip-heater advantages for higher temperature applications are offered by NS series. The heater design, materials and construction give long life for given power densities. The Incoloy sheath encloses nickelchromium resistance wire embedded in a densely compacted refractory material selected for dielectric insulation value and good heat conduction to the sheath. The small cross-section is often an advantage where space is a factor.

Clamp-on temperatures to 1200°F
Maximum work temperature depends on the watt density of the heater. Table 1 gives a few examples of work temperatures at different watt densities. Figure C-11 of the Heater Selection Nomographs page can be used to determine allowable watt densities for other specific temperatures.

Mounting
The flat top and bottom surfaces may be flush mounted or sandwiched between two heatconducting metal parts. Straight heaters can be mounted on surfaces curved to 6" (15 cm) inside radius or larger. The heater may be field bent to minimum 3 " (8 cm) inside radius. Standard strip heater clamps and clamping bands may be used for mounting.

In free or forced air, sheath temperature to 1500°F, maximum work temperature depends on the watt density of the heater. Table gives a few examples of work temperatures at different watt densities.

Max. Work Temperature °F
Application 30 W/in2 20 W/in2 10 W/in2
Clamp-on 300 750 950
Convection
Air Heating
950 1200 1350
  


Dimension-Inches (cm) NS Series. Incoloy Sheath NSL Series. 10" Wire Type Leads
A B Watts W/In2 Model
No.
Model
No.
Wt.
(lb) kg
121/2 (32) 87/8 (23) 500 32 NS-1205/** NSL-1205/** .63 (.28)
133/4 (35) 101/8 (26) 500 28 NS-1405/** NSL-1405/** .68 (.30)
157/16 (39) 1113/16 (30) 500 24 NS-1505/** NSL-1505/** .73 (.33)
1713/16 (45) 143/16 (36) 750 30 NS-1807/** NSL-1807/** .90 (.40)
181/2 (47) 147/8 (38) 1000 38 NS-1801/** NSL-1801/* .93 (.42)
193/8 (49) 153/4 (40) 1000 36 NS-1901/* NSL-1901/* 1.0 (.45)
217/16 (54) 1713/16 (45) 1100 35 NS-2001/** NSL-2001/* 1.1 (49)
233/4 (60) 201/8 (51) 1200 34 NS-2401/* NSL-2401/* 1.2 (.54)
251/4 (64) 215/8 (55) 1300 34 NS-2501/* NSL-2501/* 1.25 (.56)
2615/16 (68) 235/16 (59) 1400 34 NS-2601/** NSL-2601/* 1.30 (.59)
303/16 (77) 269/16 (67) 1500 32 NS-3015/* NSL-3015/* 1.52 (.68)
3315/16 (86) 305/16 (77) 1500 28 NS-3301/** NSL-3301/* 1.68 (.76)
363/8 (92) 323/4 (83) 1850 32 NS-3601/* NSL-3601/* 1.85 (.83)
39 (99) 353/8 (90) 2000 32 NS-3802/* NSL-3802/* 2.00 (.90)
403/4 (104) 371/8 (94) 2100 32 NS-4302/* NSL-4302/* 2.13 (.96)
513/8 (130) 473/4 (121) 2700 32 NS-4827/** NSL-4827/* 2.7 (.12)
54 (138) 503/8 (128) 3000 34 NS-5403/*** NSL-5403/*** 2.75 (.12)
/* Designate voltage, i.e.; insert 120V for 120 or 240V or 480V voltage required.
/** 120 or 240 Vac only.
/*** 240 or 480 Vac only.
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