Omega NS, NSL Specification

A

B

NSL Series

SEAMLESS INCOLOY® SHEATH
STRIP HEATERS

NS and NSL Series

NS-1505/120 shown
smaller than actual size.

U 1.9 cm (3⁄4") Wide,

High Temperature

U Rugged, Reliable,

Premium Quality

U 500 to 3000 Watt
U 2 Terminals at One End

Seamless Construction

NSL Series

NS Series­Incoloy
Sheath

11⁄2 (3.8)

A

B

11⁄2 (3.8)

A

B

Dimensions: In (cm)

2

1

⁄8 (5.4)

FEATURES

Strip-heater advantages for higher­temperature applications are offered
by NS series. The heater design,
materials and construction give
long life for given power densities.
The Incoloy sheath encloses
nickel-chromium 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. (Above right) gives a few
examples of work temperatures
at different watt densities.

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 15 cm (6”) inside radius or
larger. The heater may be field bent
to minimum 8 cm (3”) 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 1 (below) gives a
few examples of work temperatures
at different watt densities.

Optional Features Available

Terminal end bend of 15°—for
clearing terminal block when
mounted on a flat surface,
Add suffix “-TERMINAL BEND”
to model number.

Seal welding end opposite
terminals.

To Order

Max Work Temperature °F

Application 30 W/in
Clamp-on 300 750 950

Convection
Air Heating 950

2

2

20 W/in

1200 1350

10 W/in

2

SPECIFICATIONS

Sheath Material: Incoloy
Max Sheath Temp: 399°C (1500°F)
Power: 120, 240 or 480 Vac
Minimum Inside Bend Radius:

76 mm (3")

Dimension: Inches (cm) NS Series–Incoloy Sheath NSL Series–10” Wire Type Leads

A B Watts W/In

121⁄2 (32) 87⁄8 (23) 500 32 NS-1205/** NSL-1205/** 0.63 (0.28)
133⁄4 (35) 101⁄8 (26) 500 28 NS-1405/** NSL-1405/** 0.68 (0.30)
157⁄16 (39) 1113⁄16 (30) 500 24 NS-1505/** NSL-1505/** 0.73 (0.33)
1713⁄16 (45) 143⁄16 (36) 750 30 NS-1807/** NSL-1807/** 0.90 (0.40)
181⁄2 (47) 147⁄8 (38) 1000 38 NS-1801/** NSL-1801/* 0.93 (0.42)
193⁄8 (49) 153⁄4 (40) 1000 36 NS-1901/* NSL-1901/* 1.0 (0.45)
217⁄16 (54) 1713⁄16 (45) 1100 35 NS-2001/** NSL-2001/* 1.1 (0.49)
233⁄4 (60) 201⁄8 (51) 1200 34 NS-2401/* NSL-2401/* 1.2 (0.54)
251⁄4 (64) 215⁄8 (55) 1300 34 NS-2501/* NSL-2501/* 1.25 (0.56)
2615⁄16 (68) 235⁄16 (59) 1400 34 NS-2601/** NSL-2601/* 1.30 (0.59)
303⁄16 (77) 269⁄16 (67) 1500 32 NS-3015/* NSL-3015/* 1.52 (0.68)
3315⁄16 (86) 305⁄16 (77) 1500 28 NS-3301/** NSL-3301/* 1.68 (0.76)
363⁄8 (92) 323⁄4 (83) 1850 32 NS-3601/* NSL-3601/* 1.85 (0.83)
39 (99) 353⁄8 (90) 2000 32 NS-3802/* NSL-3802/* 2.00 (0.90)
403⁄4 (104) 371⁄8 (94) 2100 32 NS-4302/* NSL-4302/* 2.13 (0.96)
513⁄8 (130) 473⁄4 (121) 2700 32 NS-4827/** NSL-4827/* 2.7 (0.12)
54 (138) 503⁄8 (128) 3000 34 NS-5403/*** NSL-5403/*** 2.75 (0.12)

Designate voltage, i.e.; insert “120” for 120 or “240” or 480 voltage required.

*

120 or 240 Vac only. *** 240 or 480 Vac only.

**

†

To determine maximum allowable watt density, see Figures C-8 to C-10.

Ordering Examples: NS-2601/240, seamless Incoloy sheath.
NSL-1205/120, seamless 10" wire type leads.

2†

Model No. Model No.

Wt. (lb) kg

87