Control inputs and programmable output relays for specifics functions.
具备特定功用的控制输入和可编程输出继电器。
Under normal conditions the resistance remains between the leakage and over-temperature sensitivities, and both output relays are de-energized.
正常状态下，残留在泄露和过热感应器和各自的输出继电器上的电阻会被释放。
The Model 90 low pressure and Model 91 high pressure Selector Relays are designed to select the lower or higher of two signal pressures to provide a continuous output pressure to a control device.
示范90低压91高压模型选择继电器的设计选择较低或两个信号的压力较高，以提供持续的输出压力的控制装置。
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