The CN172 is available in Chassis Mounting (CN172) or in Panel Mounting (CN172a). The unit has a single Input and 8 dual line switched outputs, it can switch both the Live (Positive) and Neutral (Negative) at the same time giving a fully isolated section after the switch. There are 2 inputs to the Distribution Board, DCC or DC up to 24volts via a green terminal block, DC up to 24 volts via a 2.1mm socket. Each board can only be used for one type of supply at a time. Each output is double switched as DC or DCC this means that both the Positive and the Negative are switched ON or OFF. Each of the 8 outputs can switch a load of up to 6 Amps.
The LED is colour coded
It shows Green if DC voltage and polarity are correct.
It shows Red if DC voltage polarity is incorrect.
It shows Orange if using DCC voltage
 
Board size is 107 x 29mm
Voltage Range: 2v to 48v AC or DC
Current Rating: 6 Amps per Channel