Backer Hotwatt Strip Heaters Ceramic Insulated

Strip Heater Ceramic Insulated

Eagle Sensors & Controls is an authorized Backer Hotwatt distributor. Contact us with sales and application support.

Strip-and-Finned-strip

Description

U.L. Recognized – E56973
C.S.A. Certified – 016386-0-000

Applications

Air Heating, Air Ovens, Load Banks

Construction
  1. Seamless stainless steel sheath
  2. Post terminals
  3. Ceramic element support
  4. Element wire is situated in close proximity to outside surface for maximum heat transfer and minimum internal temperature while preserving good dielectric qualities.
  5. Magnesium oxide packing
  6. Aluminum fins offering maximum radiating surface and providing for rapid heat transfer to the surrounding medium. Stainless steel fins are available for corrosive environments. Aluminum fins are standard.
Catalog Number “A” “B” “F” “Min. Watts” “Max. Watts”
FS-8 8″ 7″ 3 1/4″ 50 475
FS10.5 10 1/2″ 9 1/2″ 5 3/4″ 50 785
FS-12 12″ 11″ 7 3/4″ 50 1000
FS-14 14″ 13″ 9 3/4″ 50 1300
FS-15.2 15 1/4″ 14 1/4″ 10 1/2″ 50 1500
FS-18 18″ 17″ 13 1/4″ 50 1890
FS19.5 19 1/2″ 18 1/2″ 14 3/4″ 50 2135
FS-21 21″ 20″ 16 1/4″ 50 2360
FS-23.7 23 3/4″ 22 3/4″ 19″ 50 2775
FS-25.5 25 1/2″ 24 1/2″ 20 3/4″ 50 3000
FS-26.7 26 3/4″ 25 3/4″ 22″ 50 3225
FS-30.5 30 1/2″ 29 1/2″ 25 3/4′ 75 3780
FS33.5 33 1/2″ 32 1/2″ 28 3/4″ 75 4230
FS-35.7 35 3/4″ 34 3/4″ 31″ 75 4320
FS-38.5 38 1/2″ 37 1/2″ 33 3/4″ 100 4320
FS-42.5 42 1/2″ 41 1/2″ 37 3/4″ 100 4320
  • Maximum wattage limited by 18 amp maximum at 240 volts for catalog numbers FS35.7 and longer. Any wattage is available between minimum and maximum without effecting price.
  • Lengths between and longer than those listed may be ordered.
Standard Termination

Type OF: Offset at one end

Type Of Air Ft./Min °F Max.Watts/Sq.in.
Still
Still
Still		 Up to 300°F
300°F-600°F
600°F-800°F		 20
16
10
Moving
Moving
Moving		 600
600
600		 Up to 200°F
200°-400°F
400°-600°F		 40
30
20
Moving
Moving
Moving		 1200
1200
1200		 Up to 200°F
200°-400°F
400°-600°F		 50
35
25
Formula For Determination Of Watt Density

Type SSA: Parallel at one end. Finned length (“F”) is 3/4″ longer.

Type SF-1: Flexible high temperature insulated leads. Specify length. Opposite end of unit may be standard closure with mounting hole or any of the optional closures. Suitable for use to 480V.

Optional End Closures

XS-54: Blunt end. Welded each end with no mounting holes. May be used with Type OF or SSA terminals. Finned length (“F”) is 3″ longer.

XS-83: Short crimp. At each end with no mounting holes. May be used with Type OF or SSA terminals.
Finned length(“F”) is 1″ longer.

XS-84: Secondary insulating bushings. Required when units are connected in series on voltages above 300V. Sheath must be isolated. Requires enlarged (1/2″ x 3/4″) mounting hole each end. May be used with Type OF or SSA terminals.

XS-85: Stainless steel fins. For use in corrosive environments.

Tolerances

Length:
Up to 24″, ±1/16″
24″ and over, ±1/8″
Wattage tolerances are held +5%, -10% at rated voltage.