The FZK 011 mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices where a higher degree of sensing accuracy is required. An integrated resistor (RF) can be connected to improve the switch temperature difference (see Option note). The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact.
The FZK 011 mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices where a higher degree of sensing accuracy is required.
Technical Data
Switch temperature difference: approx. 9°F (5 K), tolerance -5.4/+3.6°F (-3/+2 K)¹
Sensor element: thermostatic bimetal
Contact type: SPDT / change-over contact
Service life: >100,000 cycles verified
Min. switching capacity: 10 mA
Max. switching capacity , NC: 10 A resistive / 4 A inductive @ AC 120 V
10 A resistive / 4 A inductive @ AC 250 V
DC 30 W
Max. switching capacity , NO: 5 A resistive / 2 A inductive @ AC 120 V
5 A resistive / 2 A inductive @ AC 250 V
DC 30W
Max. inrush current: AC 16 A for 10 sec.
Connection¹: 4-pole terminal, clamping torque 0.5 Nm max.:
solid/stranded² wire – AWG 14 max. (2.5 mm²)
Housing: plastic, UL 94V-0, light grey
Mounting: clip for 35 mm DIN rail, EN 60715
Mounting position: variable
Dimensions: 2.64 x 1.97 x 1.5” (67 x 50 x 38 mm)
Weight: approx. 2 oz. (60 g)
Operating/Storage temperature: -49 to +149°F (-45 to +65°C)
Operating/Storage humidity: max. 90% RH (non-condensing)
Protection type: IP20
Approvals: UL File No. E164102 / EAC
¹ If the Normally Closed contact is used, the switch temperature difference could be reduced by connecting terminal “N” (RF heating resistor). It causes the thermal feedback which is subject to surrounding conditions and thus has to be determined for each individual application.
² When connecting with stranded wires, wire end ferrules must be used.
Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.
Operating voltage³: AC 230 V
Setting range: 5 to 60°C
³ Voltage only needs to be specified if the optional use of the RF resistor is desired
Operating voltage³: AC 230 V
Setting range: 40 to 140°F
³ Voltage only needs to be specified if the optional use of the RF resistor is desired
Operating voltage³: AC 120 V
Setting range: 40 to 140°F
³ Voltage only needs to be specified if the optional use of the RF resistor is desired
Operating voltage³: AC 120 V
Setting range: 5 to 60°C
³ Voltage only needs to be specified if the optional use of the RF resistor is desired
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