Emerson Thermodisc Tf104c Thermal Fuse | G4a00104c Model Thermal Fuse at 240°c
(1) Product Overview
Thermodisc (Emerson) MICROTEMP Thermal Fuses (also known as thermal cutoffs or temperature fuses) are one-time overheat protection safety components. They precisely sense the abnormal high temperatures generated by electrical and electronic products (such as small household appliances, transformers, charging devices, etc.) during abnormal operation, and instantaneously and permanently cut off the current circuit, thereby effectively preventing the occurrence of fires and safeguarding life and property safety.
(2) Detailed Parameter Comparison of Products in Each Series
Key Parameter Comparison Table of Thermodisc MICROTEMP Series
Parameter Items |
G4 Series |
G5 Series |
G6 Series |
G8 Series |
Z6 Series |
|---|---|---|---|---|---|
Rated Load |
10A / 250VAC |
20A / 250VAC |
16A / 250VAC |
20A / 277VAC |
16A / 250VAC |
Safety Certifications (Example) |
UL, CSA, VDE, CCC, PSE, KC |
UL, CSA, VDE, CCC, PSE, KC |
UL, CSA, VDE, CCC, PSE |
UL, CSA, VDE, CCC, PSE |
UL, CSA, VDE, CCC |
Representative Models |
G4A00104C, G4A01104C, etc. |
G5A00104C, G5A01104C, etc. |
G6A00104C, G6A01104C, etc. |
G8A00104C, G8A01104C, etc. |
Z6A00104C, Z6A01104C |
Lead Length (Corresponding Model) |
63.8mm (G4A0104C) |
63.8mm (G5A0104C) |
63.8mm (G6A0104C) |
63.8mm (G8A0104C) (G8A1104C) |
63.8mm (Z6A0104C) |
Rated opening temperature (Tf) |
104°C |
104°C |
104°C |
104°C |
104°C |
Temperature tolerance |
+0/-5°C |
+0/-5°C |
+0/-5°C |
+0/-5°C |
+0/-5°C |
Holding temperature (Th) |
89°C |
89°C |
89°C |
89°C |
89°C |
Maximum temperature (Tm) |
200°C |
225°C |
200°C |
225°C |
260°C |
Series features |
Standard 10A load, widely used |
High load 20A, used for high-current devices |
16A balanced load |
Supports high voltage of 277V |
Ultra-high maximum temperature, good high-temperature resistance |
(3) Explanation of model naming rules
MICROTEMP models contain key information such as series, load, certification, and length. For example, G4A00104C:
G4: Represents the G4 series.
A: Represents specific electrical load and certification standards.
0 (the 6th digit from the end): Represents standard-length leads (e.g., 63.8mm), while 1 represents long leads (e.g., 82.9mm).
104: Represents the rated operating temperature of 104°C.
C: Represents other specific design features.
(4) Selection and application suggestions
G4 series: Suitable for most small household appliances below 10A, such as rice cookers, hair dryers, electric kettles, etc. It is an economical and general-purpose choice.
G5/G8 series: Suitable for high-power devices such as coffee makers and heaters. The G8 series is particularly suitable for industrial applications with higher voltage requirements.
Z6 series: Due to its maximum temperature of up to 260°C, it is suitable for use inside devices with high operating environment temperatures, providing a higher safety margin.
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