The power plant is the collection of Click devices that provides power to the sensor and other Click devices. It provides surge protection and, if necessary, AC to DC power conversion (all Wavetronix devices run on DC power).

For installations supplied with AC power, the power plant includes the following:

• Click 210 circuit breaker and switch
• Click 230 AC surge module
• Click 201/202/204 AC to DC converter (in rarer cases, this could instead be the Click 203 unlimited power supply and battery)

For installations supplied with DC power, the power plant includes the following:

• Click 210 circuit breaker and switch
• Click 221 DC surge module

The most common way to obtain a power plant is to buy a preassembled backplate, of which the power plant will be part. In that case, the only setup that needs to be done is making sure that power is supplied to the backplate.

If you have purchased the individual components of the power plant, follow the steps in this document to assemble and install it.

If you have an installation with a traffic cabinet, the power plant will most likely be installed in there. If you’re just using a pole-mount box, no cabinet, that’s where the power plant should go.

Warning. An authorized electrical technician should install and operate these modules; there is a serious risk of electrical shock if the power source is handled unsafely.

AC Power Plant

Wiring in AC

1. Make sure power to AC mains is disconnected.
2. If you’re using a traffic cabinet, you will wire from its power source.
3. If you’re using a pole-mount box, push the AC power cable through one of the cable grip conduits on the bottom of the box (it’s easiest to use the bottom left). When you’re done, tighten the cable grip by twisting it until it’s tight.

Installing the Click 210

The Click 210 is a compact circuit breaker, which will interrupt an electric current if there is an overload. After a current interruption, reset the breaker by pushing the reset button (on the front of the device).

1. Mount the Click 210 onto the DIN rail.
2. Connect the line conductor (usually black) from the AC terminal block or cable to the screw terminal on the bottom of the module.
3. Connect another conductor (also black) to the screw terminal on the top of the device.

Note. For ease in troubleshooting, we recommend you follow the wire color scheme outlined here.

Installing the Click 230

1. Mount the Click 230 onto the DIN rail next to the Click 210.
2. Connect the black line conductor from the top of the Click 210 to terminal 5 on the IN side (bottom) of the Click 230. (The terminal numbers can be found on the side of the Click 230.)
3. Connect the neutral (usually white) wire from the AC terminal block or cable to the terminal marked 1 on the bottom of Click 230.
4. Connect the ground wire from the AC terminal block or cord to the terminal marked 3 on the Click 230.
5. Connect an outgoing and protected line wire (black) to the terminal marked 2 on the Click 230.
6. Connect an outgoing and protected neutral wire (white) to the terminal marked 6 on the Click 230.

Note. Terminal blocks 3 and 4 are directly bonded via the metal mounting foot of the base element to the DIN rail, so there’s no need for any additional grounding.

Installing the Click 201/202/204

The Click 201 provides 1 A (enough to power one SmartSensor HD). The Click 202 provides 2 A, and the 204 provides 4 A. Choose accordingly. (If you’re using the Click 203, see that chapter in the Click 100-400 Series User Guide.)

Follow the steps below to get power from the Click 201/202/204 to the T-bus, the power and comms bus that powers the rest of the installation:

1. Mount the Click 201/202/204 onto the DIN rail next to the Click 230.
2. Connect the line (black) wire from the Click 230 into the L screw terminal on the top of the Click 201/202/204.
3. Connect the neutral (white) wire from the Click 230 to the N screw terminal on the top of the device.
4. Connect a +DC conductor (red) to the + screw terminal on the bottom of the device.
5. Connect a -DC conductor (black) to either of the – screw terminals on the bottom of the device.
   
   Note. Don’t wire into the screw terminal marked DC OK; it provides only 20 mA and should be used only for monitoring the power supply.
   
6. Snap as many T-bus connectors as are desired onto the DIN rail and connect them together.
7. Connect a 5-screw terminal block to the end of the T-bus.
8. Connect +DC (red) from the Click 201/202/204 to the top screw terminal on the 5-screw terminal block.
9. Connect –DC (black) to the second screw terminal.

DC Power Plant

Wiring in DC

1. If you’re using a traffic cabinet, wire from its power source.
2. If you’re using a pole-mount box, feed the DC power cable through the cable grip conduit on the bottom left of the box. Tighten the grip down when you’re done.

Installing the Click 210

The Click 210 is a compact circuit breaker, which will interrupt an electric current if there is an overload. After a current interruption, reset the breaker by pushing the reset button (on the front of the device).

1. Mount the Click 210 onto the DIN rail.
2. Connect the line conductor (usually black) from the AC terminal block or cable to the screw terminal on the bottom of the module.
3. Connect another conductor (also black) to the screw terminal on the top of the device.

Note. For ease in troubleshooting, we recommend you follow the wire color scheme outlined here.

Installing the Click 221

1. Snap as many T-bus connectors as are desired onto the DIN rail and connect them together.
2. Mount the Click 221 on the first (leftmost) T-bus connector. This will connect power to the rest of the installation.
3. Connect the line (black) wire from the Click 210 into the +DC screw terminal on the bottom of the Click 221.
4. Connect the neutral (white) wire from the DC terminal block or cable to the -DC screw terminal on the bottom of the device.
5. Connect the ground conductor (green) from the DC terminal block or cable to one of the GND screw terminals on the bottom of the device.