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Overall Width =
Heated Width +
1
/
4
in.
(6 mm)
±
1
/
16
in.
(1.5 mm)
Overall Length =
Heated Length
±
1
/
16
in.
(1.5 mm)
3
/
8
in.
(9 mm)
2
1
/
2
(64 mm)
L
7
/
8
in.(22 mm)
1
1
/
2
in.
(38 mm)
1
1
/
2
in.
(38 mm)
A B
1
3
/
16
in.
(30 mm)
1
3
/
16
in.
(30 mm)
3
/
8
in.
(9 mm)
1
/
4
1
/
8
in.
(3 mm) T/C Clamp
9
/
32
in.
X
1
/
2
in.
Slot (7 mm X 12 mm)
3
/
8
in.
(9 mm)
in.
in.
Width: inches (mm) 2 (51) 30 (760) Any
Length: inches (mm) 6 (152) 52 (1320) Any
Note: Units will be
1
⁄4 inch (6 mm) wider than the nominal size of the
cer
amic fiber heater
. Overall length is equal to heater length, but
thermocouple clamp not included in length.
*
1
⁄8 inch (3.2 mm) is standard.
3
⁄16 inch (4.8 mm) and
1
⁄4 inch (6 mm) are
a
v
ailab
le upon request.
HHeeaatteerr DDiimmeennssiioonnss MMiinn.. MMaaxx.. IInnccrreemmeennttss
Applications and Technical Data
Specifications
Weight: Under 6.5 lbs/ft
2
(31.75 kg/m
2
)
V
oltage and Wattage:
R
atings are based on the ceramic fiber
heater module, which is mounted in the case. Up to 600V
Å(ac)
is possible.
Terminals: Terminals are
1
⁄4-20 threaded studs. Two terminals
plus ground for single-phase, and three terminals plus ground
for three-phase, are standard. They will be located on the center
line of the length unless otherwise specified. Terminals can be
l
ocated anywhere along lines A and B (see illustration), but not
closer than two inches (51 mm) to the case ends.
Mounting Legs
• One inch (25 mm) standard
• Three inches (76 mm) optional from stock. For made-to-order
units, mounting legs can be supplied in any incremental
length L from
1
⁄2 inch (13 mm) to three inches (76 mm). No
slots are provided in legs less than one inch long.
Application Hints: A thermocouple mounting clamp will be
provided on one end of the case, with holes on both ends for
alternate locations. The standard clamp can be used with
1
⁄8-inch
(3.2 mm) O.D. sheath thermocouples. The standard clamp is
3
⁄1
6
inch (4.8 mm) high, but can be removed for flush mounting*.
The maximum recommended surface temperature of the heater
is based on the rating of the ceramic fiber heater module. This
can vary from 1095°C (2000°F) at lower watt densities, to
higher watt densities at reduced surface temperatures. Note that
maximum wattages cannot be achieved at the maximum
temperatures simultaneously.
Options
Several options are available with RAYMAX 1220 and 2030
models. Consult Watlow for more information on any of the
options.
•
Single-phase non-standard location power terminals
• Terminal box
• Zoning
•
Mounting studs and legs
• Three-phase construction
• Thermocouple mounting tubes
•
Alternate case materials
How to Order
To order a stock, assembly stock, or standard heater
,
,
specify:
• RAYMAX 1220 or 2030
• Quantity
• Watlow code number (from Watlow heater's catalog)
• Mounting studs, if desired
Note: One-inch mounting legs are provided. Three-inch legs
are available from stock upon request.
If our stock or standard units do not meet your application
needs, Watlow can manufacture radiant heaters to your
special requirements.
For
made-to-order units, please specify, in addition to above
information:
• Heated width and length and overall size
• Total wattage
• Voltage, and phases or zones required
• Load temperature expectations
• Mounting studs, if desired
• Mounting legs and leg height, if desired (one inch is
pro
vided unless otherwise specified)
• Location of terminals
• Terminal box, if desired
•
Ther
mo
w
ell (specify size and location if standard end
clamp is not sufficient)
Supplying a drawing with an order or request for quotation
can be very helpful in clarifying design information.
Availability
Stoc
k:
Shipment in one to tw
o days
Assembly Stock: Shipment in two weeks
Standar
d:
Shipment in three to f
our w
eeks
Made-to-Order: Consult W
atlow
To be automatically connected to the nearest North American Technical and Sales Office call:
1-800-WATLOW2
International
T
echnical and Sales Offices: China,
+86 (21) 5211-0231 • France
,
+33 (01) 3073-2425 • German
y
,
+49 (0) 7253-9400-0 •
Ital
y,
+39 (02) 458-8841 • Japan, +81 (03) 3518-6630 • K
orea,
+82 (02) 575-9804 • Mala
ysia,
+60 (4) 641-5977 • Me
xico,
+52 (442) 217-6235 •
Singapore
,
+65 6773-9488 • Spain, +34 91 675 12 92 • Sweden, +46 31 7014959 • T
aiwan,
+886 (0) 7-288-5168 •
United Kingdom, +44 (0) 115-964-0777