Page 131 - General_Purpose_Enclosures _Aria, APO,Polysafe

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Accessories
Thermostat

Function
The mechanical thermostat is a dual switch with low hysteresis. The thumb wheel is for anti-
icing adjustment. The casing ensures optimal air circulation around the bimetallic element.

STO 011
Thermostat (contact normally closed) for heating resistor regulation. The contact is opened
when the temperature increases.

STS 011
FTO 011 Thermostat (contact normally open) for regulating filter fans, heat exchangers and air
conditioning units or for triggering signals when the temperature threshold is exceeded.
The contact is closed when the temperature increases.

Technical specifications
Type
Hysteresis 4 K (±3 K tolerance)
Heat sensor with bimetal element
Contact type snap switching
Life cycle > 100,000 cycles
Power 250 V AC, 10 (2) A
FTS 011 120 V AC, 15 (2) A
30 W DC on 24 V DC to 72 V DC
Max. start-up current 16 A AC for 10 s
Connection 2-pole terminal, max. tightening torque 1 Nm:
2.5 mm flexible/solid cable (AWG 14)
2
Attachment clip for 35 mm DIN rail, EN 60715
Box plastic material UL94 V-0, light gray
Connection diagram Dimensions 70 x 33 x 42 mm
Weight 50 g approximately
Installation mandatory
Thermostat Thermostat
ST0 011 (NF) STS 011 (NO) Operating/storage temperature -45 to +80°C (-49 to +176°F)
Operating/storage humidity max. 90% RH (condensation-free)
Protection rating IP20
Certification VDE, UL File No. E164102, EAC

Ordering information
Contact Temperature Type Order code Pack
STO 011 NC 0° to 60°C ACC818267 4TBJ818267C0100 1
Heating
Fan, cooling ele- STS 011 NO 0° to 60°C ACC818268 4TBJ818268C0100 1
ment, alarm signal