Xantrex Technology 809-0915 Wiring to the 20-contact Connector, Circuit Parameter Circuit Maximum

Xanbus Automatic Generator Start Installation

Wiring to the 20-contact Connector

ELECTRICAL SHOCK HAZARD

All installation wiring should be performed by a qualified installer or electrician.

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.

Failure to follow these instructions can result in death or serious injury.

ELV Circuits ELV (Extra-Low Voltage) circuits have an open-circuit

voltage of not more than 30 Vrms 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/Voc for circuits with open circuit voltage between 20 V and 30 V.

Circuit Limitations The relay contacts in the 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:

Circuit Parameter	Circuit Maximum
Open circuit voltage (Voc)	30 V maximum
Overcurrent protection	5	A maximum
(fuse size for open circuit voltage up to 20 V)
Overcurrent protection	5	A to 3.33 A
(fuse size for open circuit voltage from 20 V to	(100/Voc amps
30 V)	maximum)

Wiring Harness Connections to the generator, thermostats, and external ON/OFF switches are made using a wiring harness that plugs into the 20- contact connector (see Figure 5).

The wires on the wiring harness can be extended to meet installation requirements. When extending the wire harness, ensure that the extension wires are the same color as the wires on the harness.

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