The TRB Series combines an isolated, 10A electromechanical relay output with analog timing circuitry. False trigger of the TRB by a transient is unlikely because of the complete isolation of the circuit from the line prior to initiation. The initiate contact is common to one side of the line and may be utilized to operate other loads. Installation is easy due to the TRB's industry standard 8- or 11-pin plug-in base wiring.
工作（断开延迟）
必须在计时之前和计时期间施加输入电压。 Upon closure of the initiate switch, the output relay energizes. 启动开关断开（后沿触发）时，时间延迟开始。 输出在计时期间保持通电。 时间延迟结束时，输出断电。 当施加输入电压时，如果启动开关闭合，输出将通电。
重置: 在计时过程中重新闭合启动开关会复位时间延迟。 丢失输入电压会复位时间延迟和输出。