7 AM Thermal Protector

The 7AM thermal protector is a thermally operated snap action device which delivers the maximum protection in the smallest package at an excellent price. It is the market leader, backed by proven innovations in protection technology. The 7AM is a proven performer in protection technology with over 35 years of design experience combined with a modern state-of-the-art manufacturing facility.

Operation

At the heart of the protector 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 either an increase in ambient temperature, an increase in current flowing through the disc, or a combination of both. After the 7AM breaks the circuit, the system cools and the 7AM automatically resets allowing power to be restored to the circuit.

Product Advantage

• Miniature size
• Individually temperature checked on modern, custom-designed equipment
• Wide selection of leads and insulating sleeves
• Current and temperature sensitivity for maximum design flexibility and application
• Gasketed steel case suitable for most impregnation processes 
• Repeatable temperature performance over life

7AM performance depends on the applied current and temperature. Different bimetals are combined to achieve different performance characteristics. Low resistance ratings are used in applications where temperature rise is less than 2°C per second. High resistance bimetals are recommended for 2°-5°C temperature rise per second. If the temperature rise rate exceeds 5°C per second, contact Thermtrol for additional application. Use these curves to determine which bimetals are likely to trip in the way the application requires.

Dongguan Senreach Electronics Co., Ltd, founded in 2011, is a professional circuit protection components manufacturer and programme supplier in China. We have 20 years' experience in manufacturing fuse, fuse holder, circuit breaker, thermal protector, ntc sensor and etc.

With variety of advanced manufacturing and testing equipments, we adpot perfect quality management system to ensure that every single piece of our components are safe and stable. Our operations are ISO9001:2000-certified and products meet international standards.

Exhibition