Temperature probe hubs are disclosed. An example temperature probe hub includes a housing, a drain, and a probe jack. The drain extends through the housing. The probe jack is located within the housing in fluid communication with the drain. The drain is configured to remove fluid from the probe jack.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing, a drain, and a probe jack. The drain extends through the housing. The probe jack is located within the housing in fluid communication with the drain. The drain is configured to remove fluid from the probe jack.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing and a control button. The housing includes a base. The base has a central portion, a peripheral portion bounding the central portion, and a filler extending between the central portion and the peripheral portion. The filler is configured to move the central portion relative to the peripheral portion in response to a compressive force applied to the filler. The control button is located within the housing. The control button is configured to be actuated in response to movement of the central portion of the housing relative to the peripheral portion of the housing.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing and a control button. The housing includes a base. The base has a central portion, a peripheral portion bounding the central portion, and a filler extending between the central portion and the peripheral portion. The filler is configured to move the central portion relative to the peripheral portion in response to a compressive force applied to the filler. The control button is located within the housing. The control button is configured to be actuated in response to movement of the central portion of the housing relative to the peripheral portion of the housing.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing and a control button. The housing includes a base. The base has a central portion, a peripheral portion bounding the central portion, and a filler extending between the central portion and the peripheral portion. The filler is configured to move the central portion relative to the peripheral portion in response to a compressive force applied to the filler. The control button is located within the housing. The control button is configured to be actuated in response to movement of the central portion of the housing relative to the peripheral portion of the housing.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing, a drain, and a probe jack. The drain extends through the housing. The probe jack is located within the housing in fluid communication with the drain. The drain is configured to remove fluid from the probe jack.

Temperature probe hubs are disclosed. An example temperature probe hub includes a housing, a drain, and a probe jack. The drain extends through the housing. The probe jack is located within the housing in fluid communication with the drain. The drain is configured to remove fluid from the probe jack.

A system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material is dispersed into a surrounding environment (e.g., head space within a compartment above insulating oil), where the trace material is detected. A barrier may be ruptured or broken by temperature-induced gas pressure, or pierced by a spring-loaded member that is located within the same section that contains the trace material, and devices may be provided for moving the trace material through the foil barrier as the barrier is ruptured. The barrier may be opened solely by internal gas pressure. According to another embodiment, improved fail-safe operation may be achieved by providing a spring-loaded member and configuring the barrier to be ruptured by the pressure of the detectable gas material before the barrier is ruptured by the spring-loaded member.

A system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material is dispersed into a surrounding environment (e.g., head space within a compartment above insulating oil), where the trace material is detected. A barrier may be ruptured or broken by temperature-induced gas pressure, or pierced by a spring-loaded member that is located within the same section that contains the trace material, and devices may be provided for moving the trace material through the foil barrier as the barrier is ruptured. The barrier may be opened solely by internal gas pressure. According to another embodiment, improved fail-safe operation may be achieved by providing a spring-loaded member and configuring the barrier to be ruptured by the pressure of the detectable gas material before the barrier is ruptured by the spring-loaded member.

A burst temperature indicator system for determining when an electrical contact or other component reaches a predetermined temperature. In operation, a trace material may disperse into a surrounding environment, and be detected, when the electrical component reaches a predetermined threshold temperature. One or more foil barriers may be ruptured or broken by temperature-induced gas pressure. According to another aspect of this disclosure, a rupture disk may be burst at a predetermined temperature to generate, or enable emission of, a light signal. According to another aspect, a rupture disk device acts as, or is associated with, an engine to drive one or more electro-mechanical and/or acoustic devices to signal the occurrence of a predetermined temperature.