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Each auxiliary relay should have two normally open contacts and have the reset button.

每个辅助继电器均应具有两个常开触点.设置复位按钮.

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Normally Open A contact pair that is open when the relay is not energized.

常开触点在继电器未受激励时保持开路的触点对.

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Measure current - Model 7169 A relays remain normally open and Model 7158 relays go to normally open.

测量电流——7169A型继电器仍保持在常开位置,7158型继电器连接至常开触点.

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