ELECTRICAL DATA
POWER SUPPLY:
Voltage:
42 V, 110 V, 230 V, 400 V, 415 V0 ac
Special voltages:
eg dc, please ask
Tolerance:
+ 10 % ... – 15 %
Power consumption:
less than 3VA
Frequency:
40 – 60 Hz
Operating temp.:
– 20 °C to 60 °C
RELAY OUTPUT
1 change-over contact
Switching capacity at 250V
Use category AC 11 3A
Continuous current rating 6A
Max. current rating of overload fuse 6 A
VOLTAGE TESTING
Test voltage between supply, relay contacts and PTC
circuit, 2.5 kV
Test voltage on output contacts, 1.0 kV
PTC CONNECTION
Max. quantity of PTC connectable:
6 pcs
Terminal voltage for PTC’s
Range:
larger 1.6 k
Smaller 3.6 k +/- 10 %
SPECIAL VERSIONS
PTC sensors can be delivered with a warning label/
tag. This has a 4 cm cord, so that the tag can be seen
from the exterior when attached to the motor, equip-
ment or plant, and will warn against applying voltages
higher than 2.5V (surely this should be 2.5 kV).
The ordering code for this label ist K105.
PTC SWITCHING DEVICE
TYPE TKA1, TKA2
PTC RELAY UNIT
TYPE TKA1, TKA2
FEATURES
q sensor and relay unit are both interchangeable
q fixed sensor response temperature from
80 - 180 °C
q safe monitoring of sensing circuit and sensor
q upto 6 PTC’s can be connected
q quick installation housing (DIN-EN 50022) or
screw fixing (M4)
q also available with push-button test light
(can be retrofitted)
DESCRIPTION
These PTC relay units have been developed as state
of the art devices. All other commercially available
units can be replaced with ours.
Relay unit and sensors as per DIN 44081 and 44082
give optimum protection against thermal overload.
Together they provide a rapid and reliable motor-pro-
tection system.
Two basic formats are available:
TKA1 for applications where space is at a premium
TKA2 in a DIN housing, eg. for use in control panels
Any PTC thermistors that conform to DIN 44081 or
44082 can be connected to these relay units.
INSTALLATION
Screw or snap-on fixing TKA2
Installed on a 35 mm rail to DIN 46277 B.3 by means
of an integral snap-on housing.
Screw fixing TKA1
We reserve the right to alter specifications without notice.
CANTHERM
8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada
Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-290
E-mail : sales@cantherm.com • Website: www.cantherm.com
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