17AMCurrent and temperature double control is a kind of thermal protector with temperature and over-current protection function.

17AM+PTCCurrent and temperature double control series thermal protector is a heating element, It is arranged on the basis of 17AM current and temperature double control Thermal protector, which has power-off protection, delay protection function, The protection function is more reliable and safer.

Working principle:

When the electrical work is abnormal, causing the surrounding Temperature is too high or current overload, double metal piece will act Quickly, so that the two contact is broken, cut off the circuit. When the Temperature drops to the reset temperature, the product is reset and the Circuit is switched on. In the case of a locked rotor, the combination of Bimetal and resistance heating wire provides very accurate breaking time and Maximum protection.

When the product is assembled with PTC, the voltage applied to the PTC element, and the PTC generates enough heat to keep the protector in a Skip state. Only when the power is cut off, the product can be reset, (with Manual reset function).

7AM / 17AM Thermal protector

1. 17AM protector's Principle and structure
17AM Thermal protector works: current through bimetal and two contacts, When the appliance is not working properly, so that the ambient temperature or current is too high, to protect the device when the heat escape temperature, the bimetallic reed was quick action, so cut off the circuit. When the temperature dropped to reset temperature, bi-metal springs and quickly closed.

2. 17AM thermal protector's application
17AM thermal protection suitable for a wide range of applications, reliable performance. It is a tiny, fast moving, hot mobile device. In the field of thermal protection technology, it is a widely used to protect components. For motors, pumps, transformers, lighting, equipment and similar electric appliances ... over-temperature, or thermal protection.

3. 17AM thermal protector's specification
Large number of temperature specifications, 60 ºC ... 160 ºC +- 5 ºC (each 5 ºCone specification)
Contact capacity: 9A / 250 V - AC, 22A / 115 V - AC ....have a sensor temperature and current performance of the action of the double.
Stainless steel shell with liner, for the vast majority of Chak-dip process according to customer's specifications and needs of a variety of riveting wire length
Product size: 23 x 10 x 4.6mm
 

Selection parameter:

Range of Action temperature: 50C180C
Temperature tolerances:5,8
Locked rotor current: 460A
Jump time:2S12S (Can Be customized according to customer requirements)