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  • NT 81-F

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Model produktu：

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  • Parametry
NT 81-F
Switch temperature difference5K (-3/+2K tolerance)¹
Sensor elementNTC
Contact typechange-over snap-action contact
Service life>100,000 cycles
Min. switching capacity10mA
Max. switching capacity

NC: 250VAC, 10 (4) A

NO: 250VAC, 5 (2) A

Max. inrush currentAC 16A for 10 sec.
Connection

4-pole terminal, clamping torque 0.5Nm max.:

rigid/stranded² wire 2.5mm² (AWG 14)

Mountingclip for 35mm DIN rail, EN 60715
Casing plastic according to UL94 V-0, light grey
Dimensions67 x 50 x 38mm
Weightapprox. 60g
Fitting positionvariable
Operating/Storage temperature-20 to +60°C (-4 to +140°F)
Operating/Storage humiditymax. 95% RH (non-condensing)
Protection typeIP20

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 wires, wire end ferrules must be used.


Art. NoSetting Range Operating Voltage
81F01-20 to +60°C230VAC, 50/60Hz


  • cechy

• Adjustable relative humidity

• Change-over contact

• High switching capacity

• Easily accessible terminals

• Clip fixing

  • Wykres struktury

1.jpg

  • Application

The electronic thermostat is used for controlling heating and cooling equipment, filter fans or signal devices. The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact. Functionality: The temperature setting on the scale equals to the upper switch point, which means that the NC contact opens. The temperature setting minus switch temperature difference (and tolerances) equals to the lower switch point, which means that the NC contact closes.

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