An operation indicating lamp-equipped electromagnetic relay has an excitation coil, a contract member that has electromagnetic interaction with the excitation coil to open and close a circuit, a housing in which the excitation coil and the contact member are disposed, and having a display surface arranged in a top surface thereof, a light source having an optical axis that is oriented toward a direction other than the display surface in order to display an operating situation of the electromagnetic relay, and being disposed in the housing so as to emit light according to a situation of power supplied to the excitation coil, a reflecting member disposed in the housing so as to reflect the light emitted from the light source toward the display surface, and a diffusion structure that diffuses the light reflected by the reflecting member formed in the display surface.

An electronic switch device with ceramic materials comprises a housing, a detenting assembly, and an isolating composite material. The housing has a first half portion and a second half portion. A receiving chamber is defined by the first half portion and the second half portion. The detenting assembly is received in the receiving chamber and arranged in the second half portion. The isolating composite material is arranged at one side surface of the second half portion corresponding to the receiving chamber. The isolating composite material is isolated the contact between the second half portion and the detenting assembly.

The disclosure provides a contactor and an air conditioning system. The contactor includes a main body, a first electrical terminal, a second electrical terminal, a contact support, and a refrigerant blocking structure. The contact support is at least partially arranged in the main body and arranged between the first electrical terminal and the second electrical terminal. The contact support is configured such that a power received by the first electrical terminal from a power grid is at least partially transmitted to a load through the second electrical terminal when activated. The refrigerant blocking structure is arranged on a side of the main body toward the contact support, and the refrigerant blocking structure, the contact support, and the opening are arranged correspondingly, and the refrigerant blocking structure at least partially surrounds an outside of the contact support for blocking a flame generated by igniting of a refrigerant.

The disclosure provides a contactor and an air conditioning system. The contactor includes a main body, a first electrical terminal, a second electrical terminal, a contact support, and a refrigerant blocking structure. The contact support is at least partially arranged in the main body and arranged between the first electrical terminal and the second electrical terminal. The contact support is configured such that a power received by the first electrical terminal from a power grid is at least partially transmitted to a load through the second electrical terminal when activated. The refrigerant blocking structure is arranged on a side of the main body toward the contact support, and the refrigerant blocking structure, the contact support, and the opening are arranged correspondingly, and the refrigerant blocking structure at least partially surrounds an outside of the contact support for blocking a flame generated by igniting of a refrigerant.