Conext Automatic Generator Start Installation

Installing the Xantrex XW Automatic Generator Start

975-0307-01-01 2–5

Wiring to the 20-contact Connector

ELV Circuits ELV (Extra-Low Voltage) circuits have an open-circuit voltage of not more

than 30 V

rms

or 42.2 VDC or peak, and are therefore not a shock hazard.

Class 2 Circuits As per the US National Electrical Code (NEC) and the Canadian

Electrical Code (CEC), available power in Class 2 circuits is limited to

100 VA, usually by current limiting by means of overcurrent protection or

series resistance. The current is limited to 5 A for circuits with open-

circuit voltage of 20 V, and to I=100/V

for circuits with open circuit

voltage between 20 V and 30 V.

Circuit

Limitations

The relay contacts in the Xantrex XW AGS are rated at 5 A maximum and

all circuits on the 20-contact connector are rated at 30 V maximum.

Ensure that all circuits connected to the 20-contact connector comply

with the following limits:

CAUTION: Shock Hazard

All installation wiring should be performed by a qualified installer or

electrician.

WARNING: Fire, Shock, and Energy Hazards

The 20-contact connector is intended for connection to Class 2 ELV

(Extra Low Voltage) circuits only. Do not exceed the circuit limitations

specified in the following section.

Table 2-2 Circuit Limitations

Circuit Parameter Circuit Maximum

Open circuit voltage (Voc) 30 V maximum

Overcurrent protection

(fuse size for open circuit voltage up to 20 V)

5 A maximum

Overcurrent protection

(fuse size for open circuit voltage from 20 V to

30 V)

5 A to 3.33 A

(100/V

amps

maximum)