Chapter 4 - Electrical Requirements and Procedures
SymmetraTM Wiring
nAll power and control wiring must be installed by a qualified electrician only. All input, output, and emergency power off wiring must comply with appli- cable local and country codes.
nUse flexible metal conduit when hardwiring the Power Array. This will provide for ease of service and main- tenance of the system.
There are three categories of hardwiring installation proce- dures for the SymmetraTM Power Array:
nInput Wiring
nOutput Wiring
nRemote Emergency Power Off Switch Wiring
Input Wiring
The Power Array requires a single phase 220V, 230V, or 240V incoming AC mains (utility) power source. Incoming power is wired directly to a terminal block inside the Power Array. Input wiring specifications and installation procedures are provided.
Output Wiring
Power is distributed to the load equipment via hardwired con- nections from an output terminal block inside the Power Ar- ray frame and/or by plugging the load equipment into the convenience power panel. With the PowerView user inter- face, the Power Array can be configured to deliver either 220V, 230V, or 240V. Output wiring specifications and installation procedures are provided.
REPO Switch Wiring
The SymmetraTM Power Array can be connected to either a dry contact or a 24Vdc remote emergency power off (REPO) switch. The wiring terminal connections for the REPO are physically isolated from the primary circuitry of the Power Array. Wiring specifications and installation procedures for REPO wiring are provided.
