Thermodisc

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QuickStart       Thermistors     Bi-metal Thermostats     Thermal Cutoffs

TESTCO does not provide service parts to the general public. Consequently, to receive an exact replacement part you must contact the Original Equipment Manufacturer (OEM).

NTC Thermistors 1H103T 10,000 Ohm +/- 10% @ 25 C, Beta is 3965, Axial Leads 1H104T 100,000 Ohm +/- 10% @ 25 C, Beta 25/75 is 3965, Axial Leads 1H303T 30,000 Ohm +/- 10% @ 25 C, Beta 25/75 is 3965, Axial Leads 1H503T 50,000 Ohm +/- 10% @ 25 C, Beta 25/75 is 3965, Axial Leads

Precison NTC Thermistors P1H302T 3,000 Ohm +/- 2% @ 25 C, Beta 25/75 is 3965, Axial Leads P1H103T 10,000 Ohm +/- 2% @ 25 C, Beta 25/75 is 3965, Axial Leads P1H104T 100,000 Ohm +/- 2% @ 25 C, Beta 25/75 is 3965, Axial Leads P1H503T 50,000 Ohm +/- 2% @ 25 C, Beat 25/75 is 3965, Axial Leads

Packaged Thermistors ASN1H103K 10,000 Ohm +/- 10% @ 25 C, Beta 25/75 is 3965, packaged AP03201 10,000 Ohm +/- 1% @ 25 C, Beta 2575 is 3965, probe with leads

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Therm-O-Disc is a large manufacturer of bimetal thermostats, thermal fuses, and other devices. The majority of their products are custom made and proprietary for Original Equipment Manufacturers (OEM's).  We offer some standard configurations, however, the user must determine the suitability of the control for their application, including the level of reliability required, and are solely responsible for the function of the end-use product.  These controls contain exposed electrical components and are not intended to withstand exposure to water or other environmental contaminants which can compromise insulating components. Such exposure may result in insulation breakdown and accompanying localized electrical heating. A control may remain permanently closed or open as a result of exposure to excessive mechanical, electrical, thermal, or environmental conditions or at normal end-of-life. If failure of the control to operate could result in personal injury or property damage, the user should incorporate supplemental system control features to achieve the desired level of reliability and safety.

There are no express warranties that extend beyond the description contained herein. Please review our Terms & Conditions before ordering.

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Snap Action Bi-Metal Temperature Switch/Thermostat

The 36T Series - 1/2" Bimetal Temperature Switch

Ratings: 15 Amps @ 120 VAC, 10 Amps @ 250 VAC, normally closed and normally open designs, automatic reset, 1/4" x .032" (6.3mm x .8mm) quick connect blade terminals, surface mount. Switch tolerance +/- 5 degrees, 15 degree reset differential. Temperatures are in Celsius.

Normally Closed

Part Number     Switch Temperature

36T21 11777                     10 C
36T21 11782                     35 C
36T21 11784                     45 C
36T21 11785                     50 C
36T21 11787                     60 C
36T21 11788                     65 C
36T21 11790                     75 C
36T21 11791                     80 C
36T21 11792                     85 C
36T21 11793                     90 C
36T21 11794                     95 C
36T21 11797                   110 C
36T21 11798                   115 C
36T21 11799                   120 C
36T21 11804                   145 C
36T21 22286                   175 C

Normally Open

Part Number       Switch Temperature
36T22 11952                       0 C
36T22 11811                       5 C
36T22 11812                     10 C
36T22 11813                     15 C
36T22 11816                     30 C
36T22 11819                     45 C
36T22 11820                     50 C
36T22 11823                     65 C
36T22 11824                     70 C
36T22 11825                     75 C
36T22 11826                     80 C
36T22 11828                     90 C
36T22 11832                   110 C
36T22 11833                   115 C
36T22 11834                   120 C
36T22 11837                   135 C
36T22 11838                   140 C
36T22 22275                   150 C
36T22 22280                   175 C

60T Series - 3/4" Bimetal Temperature Switch

Ratings: 25 Amps @ 240 VAC, normally closed, automatic reset, 1/4" x .032" (6.3mm x .8mm) quick connect blade terminals, surface mount. Switch tolerance +/- 8 degrees  on open, +/- 12 degrees on close. Temperatures are in Farenheit.

Normally Closed

Part Number        Switch Temperature
60T21 610057                  220 F
60T21 610112                  300 F
60T21 202440                  325 F
60T21 610114                  350 F

74T Series - 3/4" Adjustable Bimetal Temperature Switch


Ratings: 25 Amps @ 240 VAC, Airstream mounting flange.

Part Number            Switch Range
74T12 310708               90-130 F

Microtemp Thermal Cutoffs

Microtemp Thermal Cutoffs from Therm-O-Disc offer an accurate, reliable solution to the need for upper limit temperature protection. Know as a thermal fuse, thermal link, or TCO, the MICROTEMP thermal cutoff provides protection against overheating by interrupting an electrical circuit when operating temperatures exceed the rated temperature of the cutoff.

The operating principle of the thermal cutoff is a electrically nonconductive pellet that under normal operating temperatures will hold the spring loaded contacts closed. When a predetermined temperature is reached, the pellet melts, allowing the compression spring to relax. The trip then slides the contact away from the lead and the circuit is opened. After the thermal cutoff opens the circuit it must be replaced. All temperatures are in Celsius.

Ratings: 10A @250 VAC, 15A/  @ 120 VAC - See data sheet for additional information.

Part Number      Max. Open Temperature
G4A01072C                       72
G4A01077C                       77
G4A01084C                       84
G4A01093C                       93
G4A01098C                       98
G4A01104C                     104
G4A01110C                     110
G4A01117C                     117
G4A01121C                     121
G4A01128C                     128
G4A01144C                     144
G4A01152C                     152
G4A01167C                     167
G4A01184C                     184
G4A01192C                     192
G4A01216C                     216
G4A01229C                     229
G4A01240C                     240

G4A Packaged Ceramic Microtemp Thermal Cutoff



Ratings: 10A @250 VAC, 15A @ 120 VAC with a high temperature ceramic base.

G4AM0600104C
G4AM0600229C

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