Data Sheet for Product

4/6
Smart Infrastructure Frost units QAF81... CA1N1284en
2021-08-31
Maintenance notes
The frost unit is maintenance-free.
Correct operation of the device can be checked by immersing the test loop in a vessel
of iced water.
Disposal notes
The devices are considered electronics devices for disposal in terms of European
Directive 2012/19/EU and may not be disposed of as domestic waste.
 Dispose of the device via the channels provided for this purpose.
 Comply with all local and currently applicable laws and regulations.
Technical data
Setpoint adjustment range W
h
 5... 15 °C (23...59 °F)
Factory setting w 5 °C (41 °F)
Switching differential SD 2  1 °C (3.6  1.8 °F)
Repeatability  0.5 °C ( 0.9 °F)
Responsive length of sensor Approx. 0.3...1 m
Capillary length refer to "Type summary"
Type of switch Single pole change-over
Contact rating AC 250 V, 15(1.2) A
DC 30 V, 15(1.5) A
Reset mechanism QAF81.3, QAF81.6 Automatic
QAF81.6M Manual
External supply line protection (EU) Fuse slow max. 10 A
or
Circuit breaker max. 13 A
Characteristic B, C, D according to EN 60898
Admissible medium Air
Orientation Any
Electrical connection
Screw terminals for 1.5 mm
2
Cable entry Threaded M 20 x 1.5
Protection class I to EN 60 730-1
Protection degree of housing IP54 to EN 60 529
with cable gland (M20x1.5 IP65) IP65 to EN 60 529 (not included as standard)
Product standard EN 60730-1
EU Conformity (CE) CA1T1284xx*)
Environmental compatibility The product environmental declarations OE-T-99.41767d and
017_OE-T-99.41767e
*)
contain data on RoHS compliance,
materials composition, packaging, environmental benefit and
disposal
Ambient temperature
Max. operating temperature 70 °C (158 °F)
Min. operating temperature w + min. 2 °C (min. 3.6 °F)
Storage  30... 70 °C ( 22... 158 °F)
Destruction limit t
smax
140 °C (284 °F)
Materials
Housing Die-cast aluminium
Bellows housing Copper
Capillary Copper
Capillary contents Freon R134a
Contacts Ag (Silver)
Weight (including packaging) 0.9 kg
Maintenance None required
*) The documents can be downloaded from http://siemens.com/bt/download.