1. Strip the insulation
2. Crimp the lug
3. Screw the lug onto the terminal
The recommended tightening torque is 15 N-m [130 in-lbs].
4.2.4. Connect Power In
The Stack Switchgear requires 100 V to 240 V AC power to be supplied from an external source.
Power is connected via feed-through connectors labeled 'Power In' on the front panel, as shown in
To install a conductor
Insert a tool (such as a small flat screwdriver) into the rectangular opening at the top of the
connector. This allows the conductor to freely enter into the circular opening at the front of the
connector. Remove the tool to secure the conductor in place. For stranded wires, the use of
ferrules is recommended.
When the Stack Switchgear option for external 24 V DC (no internal AC to DC
converter) is selected, the positive is at pin 2 and the negative is at pin 3 (pin 1 can
be left unconnected). For available Stack Switchgear options, refer to
Switchgear Ordering Information
An inline breaker provides the ability to turn off input power for the Stack Switchgear. It also protects
the system by tripping if the input current exceeds 5 A. For specifications of this input, see
For the breaker’s safety mechanism to work as expected, the input power wiring
must also be rated to at least 5 A.
Table 4. Power In Connector Pin Assignment
Pin
Name
Description
Connected to Device
1
G
Ground
External power source
2
N
Neutral
External power source
3
L
Line
External power source
Input power should be de-energized during installation; this usually involves turning off a breaker at
a panel.
Nuvation Energy High-Voltage BMS - Product Manual
Document ID: NE-PM-003
18
Rev 1.2, 2021-03-03
Curie Update 1
