Xantrex Technology ACCB-L-L1 manual AC Bypass Switch Assembly

Introduction

AC Bypass Switch Assembly

The AC bypass switch assembly in the ACCB-L-L1 is designed for 120 Vac applications and comes with two 60-amp circuit breakers (one SPST and one DPST). The breaker pair is equipped with a lockout rocker that allows only one breaker to be ON at any given time.

The AC bypass switch allows the generator or grid to provide power to the inverter loads in the event that the inverter is disabled for battery maintenance or removed for service.

Factory-installed

AC Bypass Breaker

Figure 1-4Bypass Switch Assembly in the ACCB-L-L1

A second AC bypass switch assembly (ACCB-L2-PCK) is available for dual- inverter installations (ACCB-L-L2 configuration). This field-installed, add-on package includes pre-cut wires for wiring a second inverter in the lower position and provides an additional Isolated Hot Bar for optional installation.

CAUTION: Equipment Damage

Although it is possible to use the second AC Bypass Switch for a second AC input (i.e., generator and grid) to the same inverter, using the AC Bypass Switch for this purpose is not recommended. Switching ON both Bypass switches can cause the two AC sources to short each other out.

For more information see Chapter 3, “Operation” in this guide.

WARNING: Electrical Hazard

If the inverter is removed from service while the bypass is used, live circuits inside the Long AC Conduit Box will not be guarded from accidental contact. Be sure to install the Blockoff Plates to prevent accidental electrocution if the inverter is removed from the system.

1–6 973-0031-01-01 Rev A