In addition, Rockwell Automation is pursuing certification for other safety product lines, including non-contact interlock switches and additional safety relays.

此外，罗克韦尔自动化正在寻求其他安全产品线的认证，包括非接触式互锁开关和附加安全继电器。

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Safety products subject to the CCC mark include relays, switches, controllers and contactors that operate above 36 volts.

需要符合CCC标志的安全产品包括继电器、开关、控制器和高于36伏特的电流接触器。

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Every machine is equipped with protect travel switch in order to increase safety coefficient for repairing and maintenance. It also has thermal overload relays to protect the motor.

每台机器均配有保护行程开关，为维修、保养增加一份安全系数。且装有热过载继电器，保护电机。

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Maureen Rush, vice president of public safety at the university, said that security at the Penn Relays has been stringent since the terrorist attacks of Sept. 11, 2001.

WSJ: Track Events Weigh Security After Boston Marathon Bombings