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Terminations
Types 1 through 6, as illustrated, show the placement of
terminals for Watlow mica strip heaters. However, please note
Type 3 terminals are not available on stock units. Placement is
specified in terms of length, width and center-to-center
dimensions. These dimensions are as follows:
Length:
Min: Type 1, 2, 3: 2 inches (50.8 mm)
Min: Type 4, 5, 6: 5
1
⁄2 inches (139.7 mm)
Max: 96
a
inches (2438.4 mm)
Tolerance: ±
1
⁄16 inch (1.6 mm)
Width:
Min:Type 1, 2, 4, 5:
5
⁄8 inches (15.8 mm)
Min: Type 3, 6: 1
1
⁄2 inches (38.1 mm)
Max: 15 inches (381 mm)
Tolerance: ±
1
⁄16 inch (1.6 mm)
Thickness:
Nominal:
3
⁄
16 inch (4.7 mm)
Types 4, 5 and 6 have
3
⁄8 inch x
1
⁄4 inch (9.5 mm x 6.3 mm)
mounting slots. Letters A, B and C, called out in the
illustrations, denote the following:
A = width, B = overall length, and
C = center-to-center dimensions on mounting slots.
a
Consult the factory if you need to exceed 96 inches
(2438.4 mm).
MICA STRIP HEATERS
1
3
/4
"
(44.5 mm)
C
B
Heated Area
A
1
3
/4
"
(44.5 mm)
1"
(25.4 mm)
Heated Area
A
1
3
/4
"
(44.5 mm)
C
B
C
B
A
1"
(25.4 mm)
Heated Area
1
3
/4
"
(44.5 mm)
A
B
5
/8
"
(15.9 mm)
Heated Area
5
/8
"
(15.9 mm)
B
3
/8
"
(9.5 mm)
5
/8
"
(15.9 mm)
A
Heated Area
B
A
Heated Area
5
/8
"
(15.9 mm)
3
/8
"
(9.5 mm)
Type 1—Opposite Ends
Type 2—Tandem
Type 3—Parallel Made-to-Order
Type 4—Opposite Ends with Holes
Type 5—Tandem with Holes
Type 6—Parallel with Holes
Ordering Information
Please consult the Watlow Heaters catalog for specifics.
To order your stock mica heater, specify:
• Quantity
• Watlow code number
Availability
• Stock: Same day shipment
• Made-to-Order: If stock units do not meet application needs,
Watlow can manufacture mica strip heaters to meet special
requirements. Please consult a Watlow sales engineer or
authorized distributor.