SmartSensor HD - Interprovincial Traffic Services

CHAPTER 2 • CONNECTING POWER AND SURGE 25NoteAn authorized electrical technician should perform installation and operation of thisunit. Persons other than authorized and approved electrical technicians should NOTattempt to connect this unit to a power supply and/or traffic control cabinet, as thereis a serious risk of electrical shock through unsafe handling of the power source. Extremecaution should be used when connecting this unit to an active power supply.Wiring in ACThe first step is to get AC power into the enclosure. (Sometimes the power source is actuallyDC; to see Wavetronix’s selection of DC power modules, see the Click Series UserGuide.) If you’re using a main traffic cabinet, wire from its power source; if you’re usinga pole-mount box, the power lines or cable can be brought in through the conduit on thebottom-left.NoteMake sure power to AC mains is disconnected while wiring AC input.Wiring the Click 210The first device in the power plant, as seen in Figure 2.5, is the Click 210. This is a compactcircuit breaker DIN rail device designed to interrupt an electric current under overloadconditions. The breaker is trip-free and can be easily reset after a current interruption bypushing the reset button.