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FAN HEATER
CR27 Series
U Compact Fan Heater in
PTC Technology
U Heating Power Adjusts
to Ambient Temperature
U Integrated Adjustable
Thermostat and Control
Light
U DIN Rail Mountable
An easy DIN rail mountable design
makes the CR27 Series fan heater
an ideal accessory for any enclosure.
The CR27 maintains minimum
operating temperatures in enclosures
and helps to prevent failure of
electronic components caused by
condensation and corrosion.
To determine the required heater
size follow this equation:
PH = (A x ∆T x k) - Pv
PH = Required heating power for
your application in Watts (W)
Pv = Heating power generated by
existing components (e.g. a
transformer) in Watts (W)
A = Exposed enclosure surface
area square meters (m²)
∆T = Temperature differential
between the desired minimum
interior temperature and lowest
possible external temperature of
the enclosure in Kelvin (K),
1.8°F = 1°C = 1K
k = Heat transmission coefficient
of the enclosure material used:
Stainless Steel: 3.7 W/m²K
Painted Steel: 5.5 W/m²K
Aluminum: 12 W/m²K
Polyester/Plastic: 3.5 W/m²K
For outdoor applications it is
recommended to double the
heating power.
Specifications
Heating Element: PTC-semiconductor/
resistor, self-regulating with changing
ambient temperaure (see graph)
Thermostat Range: 0 to 60°C
(32 to 140°F)
Overheat Protection: Built-in
temperature limit in case of fan
failure
Function Control Light: LED
Housing: Plastic, UL94V-0
Dimensions:
165 H x 100 W x 128 mm D
(6.5 x 3.94 x 5")
Connection: 2-pole
terminal, 2.5 mm²
(AWG 14 max)
Mounting: Clip for
35 mm DIN rail
(EN 50022)
Protection Class:
II (double insulated)
Protection Type:
NEMA 2 (IP20)
Axial Fan (Ball Bearing):
CR2700900,
CR2700901:
3
35 m
/h (20 cfm)
CR2701900,
CR2701901:
3
45 m
/h (26 cfm)
Max Current (Inrush):
CR2700900,
CR2700901: 14 A
CR2701900,
CR2701901: 15 A
Weight:
CR2700900,
CR2700901: 0.9 kg (2 lb)
CR2701900,
CR2701901: 1.1 kg (2.4 lb)
Dimensions: mm (inch)
For spacing, add 51 mm (2'') clearance
to heat sensitive parts
128 (5)
124 (4.8)
Back View
100 (3.94)
Top View
Heating Power Relative to Ambient Temperature
800
700
600
500
400
300
Heating Power (W)
-20°C
-10°C
-4°F
14°F
Ambient Temperature
165 (6.5)
160 (6.3)
Side View
0°C
32°F
10°C
50°F
CR2701900
shown smaller
than actual size.
650W
heater
550W
heater
400W
heater
30°C
20°C
86°F
68°F
To Order
Model No. Description
CR2700900 Fan heater, 550 W, 120 Vac, with adjustable
thermostat 32 to 140°F
CR2700901 Fan heater, 550 W, 120 Vac, with adjustable
thermostat 0 to 60°C
CR2701900 Fan heater, 650 W, 120 Vac, with adjustable
thermostat 32 to 140°F
CR2701901 Fan heater, 650 W, 120 Vac, with adjustable
thermostat 0 to 60°C
XBANS3575P DIN rail 35 x 7.5 mm x 2 m (1.4 x 0.30" x 6') slotted
Comes complete with operator’s manual.
Ordering Examples: CR2700900, fan heater, 550 W, 120 Vac, with adjustable thermostat
32 to 140°F.
CR2701901, fan heater, 650 W, 120V, with adjustable thermostat, 0 to 60°C.
HT-44
ELECTRIC HEATERS
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