SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
SETsafe | SETfuse
Thermal Protector (TMS)-Resettable
  • Thermal Protector (TMS)-Resettable
  • 12TP series×
12TP series

Contact Capacity: 277 VAC / 12 A ; 125 / 20A ; 24 VDC / 20 A

Operating Temperature (To): 30 ~ 155 ℃ (in increments of 5K)


TMS 12TP_SETSafe & SETfuse.pdf

Datasheet (PDF Document) Include: Specifications, Agency Approvals, Packaging, Structure Diagrams, Glossary, Part Numbering System, Installation, Usage, Replace, Storage and other information.


Xiamen SET Electronics Co., Ltd.


● Low Contact Resistance                     

● Snap Action Disc

● RoHS & REACH Compliant

Mounting Style

Panel Mount, Through Hole, Surface Mount

Termination Style

Wire, Welding, PCB Mount, QC Terminal, Rivet


● Water Heaters

● Car Electric Heated Seats

● Battery Protection

● Transformers

● Dryers

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Design Standards & Agency Approvals


The following certificates (PDF Documents) are only used for browsing on the web to prove the product has been certified. If you need a full version certificate, Please contact:

CQC (China):

Standards: GB/T 14536

File No.: On-going

Quality Assurance

TMS Quality Assurance

For product quality, our goal is to be industry-leading. We ensure that the quality of the product meets the expected goals from the following process.

Quality Policy.

Qualified Supplier of Raw Materials.

Incoming Quality Control (IQC):

Acceptance Quality Limit (AQL), Dimension, Function, Visual Inspection, RoHS & REACH Test. etc..


Online Inspection and Function Test 100%, etc..

In Process Quality Cortrol (IPQC): AQL, Dimension, Function, Visual Inspection, etc..

Final Quality Control (FQC):

AQL, Dimension, Function, Visual Inspection, RoHS & REACH Test, etc..

Reliability Test:

AQL Sampling Test.

Outgoing Quality Control (OQC):

Packaging, Labeling, Quantity Inspection, etc..

Agency Information:

Safety Certificate Agency Annual, Quarterly Audits. Include UL, cUL, VDE, TUV, KC, PSE, CCC. etc..

Quality Management System:

TUV Approved and Issued Certificate.


SETsafe | SETfuse

Brand Story.png


SETsafe | SETfuse thermal protector (TMS) mainly uses bimetal disc to sense current or temperature. When the temperature of the bimetal disc reaches the pre-calibrated temperature, the bimetal disc quickly trips, connect or disconnect the circuit. Ambient temperature increasing or current increasing or both of the above may cause the temperature of the bimetal to reach its pre-calibrated temperature, thereby connect or disconnect the circuit. This device covers rated current from 0 to 20 A, rated operating temperature from 30 °C to 175 °C by various part numbers. It complies with RoHS and REACH environmental protection requirements.

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12TP series