Tekmar 1773 - Technical Data, Safety Instructions

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8. Technical data, safety instructions
Rated voltage
230 V~ ± 6%, 50 Hz
Power consumption
approx. 10 VA
Type of moisture sensor
tekmar 3354, 3355, 3356 (also predecessors 3351, 3352 and 3353)
Type of temperature sensor
tekmar Series 31
Number of sensors
1 or 2
Heating output
low-voltage relay, switching capacity max. 6 A, 250 V~
Alarm output
SELV 24 V=  20%, load capacity 15 mA, short-circuit protected
Ambient temperature
0 to +50 °C, no condensation; sensor –30...+75 °C
Storage temperature
-10 to +60 °C, no condensation; sensor –30...+75 °C
Degree of protection
IP 20; sensor IP 68 (according to EN 60529)
Class of protection
II according to DIN 57700, when installed in distribution cabinet
Pollution degree
2 (normal)
Space required
6 HP according to DIN 43880
Mounting
on mounting rail 35 mm according to DIN EN 60715
Weight
approx. 0,4 kg
Standards
DIN EN 60730-1, DIN EN 730-2-9
Heat and fire resistance
category D
Ball pressure test
+ 125 °C
Rated surge voltage
4 kV
Action type
type 1B
Rated power and load for EMC
emission test
230 V~, load 0,5 A
Dimensions [mm]
Safety and functional instructions
Only qualified specialists may install the devices. The relevant VDE regulations must be observed. According to
VDE guideline 0100 cables carrying low voltage must be routed separately, away from cables carrying safety
extra low voltage. In case an inductive load (for example a contactor) is connected, it is possible that additional
measures to elimintate EMC interference must be taken during installation.
Many electronic devices may cause interference which may cause errors in other devices despite all technical
precautions. If the snow and ice detector is affected by such an error and does not react at all or faultily,
switching the power supply on and off often solves the problem. The device can also be reset by switching the
upstream circuit breaker off for approximately 10 seconds. In most cases the device functions without problems
after the reset. If this is not the case, contact the tekmar Service.