BTK is a leading manufacturer of thermal protector located in South Korea. BM-1 thermal protector is an electromechanical safety device, which provides complete protection to your equipments against over-heating and over-loading and mechanical malfunctions. After temperature cooling down the thermal protector closes it's contacts again. (auto reset function) BM-1 thermal protector are used premarily in transformers, motors, solenoids, lighting ballasts, medical equipments and similar applications. BM-1 thermal protector response determined by current sensitive. This property can be influenced by selection of different kind of bimetal material.

BM-1U thermal protector is used in high current as a low resistance type.
It has a delayed response time.
BM-1W thermal protector is used in low current as a high resistance type.
It has a quick response time.
BTK's Self-Hold BM-1S thermal protector offers the best attributes of one short protectors and auto reset
protectors in a single package.
The Self-Hold BM-1S, once activated in a fault condition, maintains its open state until power is removed.
No reset button here-simply remove power and the device will cool down and reset.

BM-1 thermal protector is availabe with blanc terminals or connecting leads. Insulation of housing by sleeving available. For use under vacuum conditions, please use the sealed version. BM-1 thermal protectors are complying with the European regulation for using Hazardous Chemical Substance following the Directive on RoHS.

BTK has developed our own automatic assembly and temperature testing equipments. All BTK products are made by automatic assembly equipments. All devices are temperature calibrated and tested by monitoring system. All BTK products are 100% quality tested before leaving our factory.