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E-7
English
8
8 Technical data
All materials used have good thermic, electrical and mechanical
properties and offer the highest possible degree of corrosion
protection.
The screw-in heaters are made of a stainless steel cladding (Ø
6.5 mm, material 2.4858 / INCOLOY 825) with a highly
compressed insulating compound, in which a heating spiral is
embedded.
The screw head with G 1 ½“ screw-in thread is made of stainless
steel (material 1.4301 / AISI 304).
The connection casing can be mounted in four different positions
(each with a 90° offset) after the screw-in thread has been
fastened.
Height of dust cap: 120 mm adjustment range of the temperature
selector:
Diameter of the dust cap 120 mm (without strain relief and pipe
union)
Screw-in heaters
Adjustable from 30°C to approx. 80°C, plus frost protection
position. The required flange seal is supplied.
Temperature controller (TC) with safety temperature limiter
(STL) according to DIN EN 60335-2-21
Frost-protection level 11 °C +/- 7K
Degree of protection IP54
The screw-in heater is tested up to a static pressure of approx.
10 bar. The maximum operating pressure must not exceed 10
bar.
ATTENTION!
For electrical connection:
The CTHK 630 - 636 screw-in heaters are connected to the heat pump
manager via a contactor. To do this, please also refer to the heat pump
manager connection diagram.
CTHK 630 and CTHK 631:
Single-phase version
For direct connection 1 ~ 230 Volt
CTHK 632 - CTHK 636:
Three-phase version
For direct connection 3 ~ 400 Volt
Type
Rated
output
in KW
Rated
voltage
in V
Heating
element
quantity
Switching
assembly 1
in KW
Immersion
depth
in mm
Unheated
length
in mm
Installation
option
horizontally
Connection
thread
DVGW
and KTW
certification
VDE
certification
CTHK 630 4.5 ~230 1 4.5 400 95 x R 1 1/2“ x x
CTHK 631 2.0 ~230 1 2.0 250 95 x R 1 1/2“ x x
CTHK 632 2.9 3~400 3 2.9 250 95 x R 1 1/2“ x x
CTHK 633 4.5 3~400 3 4.5 350 110 x R 1 1/2“ x x
CTHK 634 6.0 3~400 3 6.0 450 110 x R 1 1/2“ x x
CTHK 635 7.5 3~400 3 7.5 550 110 x R 1 1/2“ x x
CTHK 636 9.0 3~400 3 9.0 650 110 x R 1 1/2“ x x
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