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Generac Power Systems Automatic Transfer Switch

Generac Power Systems Automatic Transfer Switch
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Owner's Manual
Automatic Transfer Switch
400 Amp Single-Phase
REFERENCE ALL APPROPRIATE DOCUMENTATION.

Table of Contents

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Generac Power Systems Automatic Transfer Switch Specifications

General IconGeneral
PhaseSingle-Phase, Three-Phase
DimensionsVaries by model
WeightVaries by model
Amperage100A, 200A, 400A, 600A, 800A, 1000A
Voltage120/240V
NEMA RatingNEMA 3R
Switch TypeAutomatic

Summary

Safety Rules

General Information

Installation

Connecting Power Source and Load Lines

Safely connect utility, generator, and load power lines, observing voltage warnings.

Overload Prevention Control Board (OPCB)

Manages generator loads by shedding based on frequency to prevent overload.

Operation

Functional Tests and Adjustments

Inspect installation and perform functional tests carefully in sequence.

Manual Operation

How to manually switch between utility and standby power sources without load.

Generator Tests Under Load

Testing generator performance and stability with applied electrical loads.

Testing Overload Prevention Control Board (OPCB)

Using the test button to verify load shed functions and status LEDs.

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