MQT8K020XB datasheet, PDF - EEWORLD Datasheet

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MQT8K020XB: DescriptionTHERMOSTAT CTRL 20 DEG C NC 2A; CategoryThe sensor; File Size1MB，2 Pages; ManufacturerCantherm; Environmental Compliance

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MQT8K020XB Overview

THERMOSTAT CTRL 20 DEG C NC 2A

MQT8K020XB Parametric

Parameter Name	Attribute value
circuit	SPST-NC
switching temperature	68°F（20°C）
reset temperature	50.9°F（15.5°C）
Rated current - AC	0.9A（250V），1.5A（125V）
Rated current - DC	0.3A（48V），1.5A（12V）
Tolerance	±5.4°F（±3°C）
Number of switches	100K
Terminal type	Lead - 5.91" (150mm)
Installation type	Base installation
Package/casing	Rectangular housing

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Cross bar contacts

For ordinary contacts, the maximum current is indicated as 2 or 5 A max. etc. What is the minimum current? This is generally around 50~100 mA. Cur-

rents below this range are covered by special contacts for micro current.

The minimum current for ordinary contacts of our 2 Amp./5 Amp. series is also 50 mA. For currents below 50 mA, Crossbar

contacts, called K contacts, are applied. Since the current range covered by cross contacts is 1~100 mA, 50~100 mA is covered

both by ordinary contacts and micro capacity contacts. As this range is a recommended standard, ordinary contacts can be used

for 20 mA as well, however, the possibility of contact failure will increase. Though the rating is indicated as 1~100 mA for crossbar

contacts, these contacts may also be used in any amperage out of this range. 1~100 mA is the range that 100% conduction is

ensured. The structure of crossbar contacts is that of two noble metal contacts in trapezoidal shape, contacting with each other crosswise. The benefit of

this structure is that there will be smaller possibility for contact failure because it can assure the large contact pressure per unit area.

• Contacts which open when the temperature rises are designated as X, and those which close

when the temperature rises are designated as Y. Shown in the diagram is the temperature at

which the contacts operate when the temperature rises (the high temperature side).

• X [Xbar] and Y [Ybar] are used for contacts that operate when the temperature falls (the low

temperature side). X [Xbar] indicates the contact that closes when the temperature falls. Y

[Ybar] indicates the contact that opens when the temperature falls. Z indicates transfer con-

tacts. XZ is the main contact that opens when the temperature rises. XZ [Xbar Z] is the main

contact that closes when the temperature falls.

• C is the standard rank designation for X contacts and B is standard for Y contacts. Please

consider X is C ranked and Y is B ranked, unless otherwise indicated.

Contact type indication

Model designation method

CONTROL THERMOSTATS (MQT)

2 AMP SERIES

MQT8H K35XC represents a thermostat with crossbar contacts (K means crossbar

contact). For 5 Amp. Series with a back contact, a model name will be, for ex-

ample, M3 70XZB, where Z means contact with the back contact.

8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada

Tel:

(514) 739-3274 • 1-800-561-7207 •

Fax:

(514) 739-2902 •

E-mail:

sales@cantherm.com

Website:

www.cantherm.com

| Division of Microtherm

2010/August MQT

MQT8K020XB Related Products

	MQT8K020XB	MQT8K025YB	MQT8K035YB	MQT8H 90XC	MQT8H 50XB	MQT8K005XBARB	MQT8K000XBARB	MQT8K020YB	MQT8K037XB	MQT8K015XB
Description	THERMOSTAT CTRL 20 DEG C NC 2A	THERMOSTAT CTRL 25 DEG C NO 2A	THERMOSTAT CTRL 35 DEG C NO 2A	THERMOSTAT CTRL 90 DEG C NC	THERMOSTAT CTRL 50 DEG C NC	THERMOSTAT CTRL 5 DEG C NC 2A	THERMOSTAT CTRL 0 DEG C NC 2A	THERMOSTAT CTRL 20 DEG C NO 2A	THERMOSTAT CTRL 37 DEG C NC 2A	THERMOSTAT CTRL 15 DEG C NC 2A
circuit	SPST-NC	SPST-NO	SPST-NO	SPST-NC	SPST-NC	SPST-NC	SPST-NC	SPST-NO	SPST-NC	SPST-NC
switching temperature	68°F（20°C）	77°F（25°C）	95°F（35°C）	194°F（90°C）	122°F（50°C）	41°F（5°C）	32°F（0°C）	68°F（20°C）	99°F（37°C）	59°F（15°C）
reset temperature	50.9°F（15.5°C）	68.9°F（20.5°C）	86.9°F（30.5°C）	182°F（83.5°C）	114°F（45.5°C）	32.9°F（0.5°C）	23.9°F（-4.5°C）	50.9°F（15.5°C）	90.5°F（32.5°C）	50°F（10.5°C）
Rated current - AC	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	1.3A（250V），2A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）	0.9A（250V），1.5A（125V）
Rated current - DC	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），2A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）	0.3A（48V），1.5A（12V）
Tolerance	±5.4°F（±3°C）	±5.4°F（±3°C）	±5.4°F（±3°C）	±9°F（±5°C）	±5.4°F（±3°C）	±5.4°F（±3°C）	±5.4°F（±3°C）	±5.4°F（±3°C）	±5.4°F（±3°C）	±5.4°F（±3°C）
Number of switches	100K	100K	100K	100K	100K	100K	100K	100K	100K	100K
Terminal type	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)	Lead - 5.91" (150mm)
Installation type	Base installation	Base installation	Base installation	free hanging	free hanging	Base installation	Base installation	Base installation	Base installation	Base installation
Package/casing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing	Rectangular housing

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