Connection to Voltage Supply

There are some subtle differences between the connection areas for the SC-23 and KR-63. The voltage supply connection area is the same across both variations of the Solar Analytics Smart Monitor, however, the CT connection area is a different.

CAUTION:  Risk of electrical shock. Always de-energise circuits before starting any wiring and connections.

Connection Area – Voltage Supply

The voltage supply connection area for the SC-23 and KR-63 are identical. There are 3 positive connections labelled P1, P2 and P3 respectively and a neutral connection labelled N (Figure 4 below). These can be configured to monitor single or three phase loads with the corresponding voltage phoenix plugs and pre-wired tails.

 

The Solar Analytics Smart Monitor needs to be supplied by a voltage supply from the existing system. The device uses this as a voltage reference frame for the CTs.

SC-23

To monitor 1-phase systems, the supply to the SC-23 will need to be 1-phase. The pre-wired 1-phase tail provided should be used to connect the SC-23 to the voltage supply.

Lethal voltages are present at the connection point of the utility grid. Disconnect the any connection points from all voltage sources and ensure the connection point is voltage-free.

Where possible, you should be able to use an existing 1-phase lighting circuit breaker in the distribution board; failing which, you will need to install a separate circuit breaker with suitable rating to supply voltage to the SC-23.

PRO-TIP: In most regular households, the lighting circuit breaker will be of adequate rating for this purpose. This lighting circuit can also be easily turned on/off easily without disrupting power supply to any major appliances in the house.

For 3-phase installations using the SC-23, the 3-phase pre-wired tail can be purchased from Solar Analytics. Alternatively, you can easily re-wire the phoenix plug by removing the 2 loops (P1-P2 and P2-P3) and attaching a white and blue wire for the B and C phases respectively. 

KR-63

To monitor 3-phase systems, the supply to the KR-63 will need to be 3-phase. The pre-wired 3-phase tail provided should be used to connect the KR-63 to the voltage supply.

Lethal voltages are present at the connection point of the utility grid. Disconnect the any connection points from all voltage sources and ensure the connection point is voltage-free.

Where possible, you should be able to use an existing 3 phase CB in the distribution board; failing which, you will need to install a separate CB to supply voltage to the KR-63.

Required (recommended) additional equipment

• Up to 15A – 3-phase circuit breaker