Principle and structure:

DS series thermal protector is a kind heating protector with an open structure. It is ideal protectors for pet drier, industrial heating gun, and heaters, etc, for its prompt snap action and accurate cutout temperature.

At the heart of the device is a bimetal snap-action disc. When the temperature of this disc reaches its pre-calibrated temperature, it snaps open, resulting in an open circuit. This temperature is reached during a fault condition caused by an increase in ambient temperature. After the device breaks the circuit, the system cools and automatically resets allowing power to be restored to the circuit.

◆ Contact capacity:

20A /24VDC 20A /125VAC 12A /250VAC

1. Temperature specification:

Open temperature: 50~150±5℃; one gear every 5℃.

ON-OFF differential ＞10℃

• Cycles:

6000 cycles @ rated current and voltage.

• Safety certifications

UL: E465826 TUV: R50279441

More than 20  Years in thermostat industry

JIANGSU CHANGSHENG ELECTRIC APPLIANCE CO.,LTD, specializes thermostat/thermal protector/thermal fuse, thermal switch, thermal cutouts, thermal cutoff which are used in motors, transfers, lighting, garden toolings, vacuum cleaners, ballast, PCB, etc.

Famous customers

Welling motor, broad-ocean motor, Kaibang motor, Midea, Hitachi, Panasonic, Gree, Nidec, Sharp, Emerson, W.E.T, PEPI, Hanning, copreci, IGB etc.

Owning Invention and Utility Patents
We are a member of the National Technical Committee on thermal protector of Standardization Administration of China and take part in setting up and upgrading the national standards of protector, which is equivalent to the IEC standards in the domestic protector market. Plus, we have six invention patents for our technologies of  thermal cutoff.

33 Million Units output per month

17AM-D 5.5 Million, 18AM 2.5 million, BR series 3 million;  BR-A2D 15 million; BR-B6D 2 million

Safety certifications

UL, CQC, CK, TUV, VDE.

Quality Management system

ISO9001, IATF16949, ISO14001

Contact Us
A one-year warranty is also offered for your peace of mind. To learn more about what we can do for you, contact us today.