Page 130 - General_Purpose_Enclosures _Aria, APO,Polysafe

130 GENER AL PURPOSE ENCLOSURES HE AV Y DUT Y AND INDUSTRIAL ENCLOSURES

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Accessories
Thermostat

Function
FZK 011, ZR 011 and ETR 011 elements regulate and control the temperature inside the enclo-
sure by controlling the small heaters, fans, heat exchangers and cooling units.

FZK 011
Mechanical thermostat used for controlling heating resistors, air conditioning units, filter
fans or signaling. It obtains ambient temperature readings and can switch resistive and in-
ductive loads thanks to its snap switching.
FZK 011
ZR 011
Two thermostats in one unit:
• thermostat (contact normally closed) for heating resistor regulation.;
• thermostat (contact normally open) for regulating filter fans, heat exchangers and air con-
ditioning units or for triggering signals when the temperature threshold is exceeded.
Unlike a thermostat with inverter switch, the dual thermostat allows the heating resistor and
air conditioning unit to be connected independently at different temperature ranges.

ETR 011
ZR 011
The mechanical thermostat is used for controlling heating resistors, air conditioning units,
filter fans or signaling. The thermostat obtains ambient temperature readings and can
switch resistive and inductive loads thanks to its inverter switch (relay). The LED integral to
the adjustment button lights up when the contact is closed (when the heating resistor is in
operation, for example).

Technical specifications
Type FZK 011 ZR 011 ETR 011
Adjustment range: +5 to +60°C or -20 - +35°C 0 to 60°C +20 °C
hysteresis temperature 0.5 K 7 K 4 K (±1 K tolerance)
ETR 011
Contact type switching contact: single- NC NO
pole
Connection diagram Power NC 10 A (4) 250 V AC 10 A (2) 250 V AC AC 240 V, 8 (1.6) A
NO 5 A (2) 250 V AC Resistive load AC 120 V, 8 (1.6)
Resistive load DC 100 W to DC 24 V
FZK 011
Max. start-up current - - 16 A AC for 10 s
Weight 100 g 90 g 70 g
Dimensions (H x W x D) mm 67 x 50 x 38 60 x 50 x 46 64.5 x 42 x 38
Wiring diagram (see left) (see left) /
Protection rating IP20 IP20 IP20
Connection 2-pole terminal, max. tightening torque 0.5 Nm: 2.5 mm solid cable (AWG 14) 1.5
2
ZR 011
mm flexible cable (AWG 16)
2
Installation clip for 35 mm DIN rail, EN 60715
Box plastic material UL94 V-0, light gray
11 12 23 24
Load 1 Load 2
L1 L2 Anti-interference N in accordance with VDE 0875
N1 N2
Normally closed: heating resistor Values between parentheses = inductive load cos ϕ = 0.8
Normally open: air conditioning
unit, filter fan or heat exchanger
Ordering information
Temperature Type Order code Pack
ETR 011 FZK 011 +5 ° to +60 °C ACC818079 4TBJ818079R0100 1
FZK 011 -20 ° to +35 °C ACC818269 4TBJ818269C0100 1
ZR 011 0 ° to +60 °C ACC818217 4TBJ818217R0100 1
(1) At an ambient temperature of 20°C

Heating
Fan, cooling
element, alarm signal