Generac RTG16EZA1, RTG14EZA1, RTG12EZA1, RTG10EZA1 User Manual

Pre-Wired

Switch

Pre-Wired Automatic Transfer Switch

with Built-In Load Center

250 VAC, NEMA 1

Model RTG10EZA1 – 50 Amp, 10 Circuit Switch

Model RTG12EZA1 – 50 Amp, 12 Circuit Switch Model RTG14EZA1 – 100 Amp, 14 Circuit Switch Model RTG16EZA1 – 100 Amp, 16 Circuit Switch

Pre-Wired Switch

1 of 2

DESCRIPTION

The Generac pre-wired switch is designed to operate with 8-17kW air-cooled generators. This transfer switch has an integrated load center for picking up the emergency circuits. It is especially useful where the main service is large and only a portion of the building load will be served by the generator. It is available with a built-in 10, 12, 14 or 16-circuit load center to supply only those circuits that are essential during an emergency. All standard and load center transfer switches are CUL Listed and suitable for use in optional standby systems (NEC702).

STANDARD FEATURES

All pre-wired switches are housed in a steel NEMA 1 enclosure, with electrostatically applied and baked powder paint. The Heavy Duty Generac Contactor is a UL recognized device, designed for years of service. The controller at the generator handles all the timing, sensing and exercising functions.

CONTACTOR RATING

The transfer switch contactor is rated at 250 VAC and is available in a single phase configuration only.

50-100 Amps Pre-Wired Switch

Functions

All timing and sensing functions originate in the generator controller.

Pre-Wired Switch

Utility voltage drop-out ......................................................................................................................................................................................................................<60%

Timer to generator start ..................................................................................................10 second factory set, adjustable between 2-1500 seconds by a qualified dealer*

Engine warm up delay ................................................................................................................................................................................................................. 5 seconds

2 of 2

Standby voltage sensor ..................................................................................................................................................................................................60% for 5 seconds

Utility voltage pickup .........................................................................................................................................................................................................................>80%

Re-transfer time delay ............................................................................................................................................................................................................... 15 seconds

Engine cool-down timer ............................................................................................................................................................................................................ 60 seconds

Exerciser .............................................................................................................................................................................................................. 12 minutes every 7 days

The transfer switch can be operated manually without power applied.

*When used in conjunction with units utilizing Evolution™ controls

Specifications

Model RTG10EZA1 RTG12EZA1 RTG14EZA1 RTG16EZA1

Voltage 120/240, 1ø 120/240, 1ø 120/240, 1ø 120/240, 1ø

Amps 50 50 100 100

Circuits, 50A, 240V – – – 1

40A, 240V – 1 1 1

30A, 240V 1 1 – –

20A, 240V 1 – 1 1

20A, 120V 3 3 6 5

15A, 120V 3 5 4 5

Phase 1

Rated AC Frequency 60 Hz

Enclosure Material Steel

Enclosure Type NEMA 1

Withstand Rating (Amps) 10,000

Lug Range 1/0 - #14

Load Transition Type Open Transition

30' Whip Conductor Gauges (Hot, Neutral, Ground, Control) 8, 8, 10, 18 6, 6, 8, 18

Features

• Electrically operated, mechanically-held contacts for fast, positive connections.

• Rated for all classes of load, 100% equipment rated, both inductive and resistive.

• 2 pole, 250 VAC contactors.

• 30 millisecond transfer time.

Dimensions and Wire Ranges

Mechanical Dimensions

Amps

50*

100

*Note: The 50 Amp switch is flush mountable. H1 and W1 refer to mounting hole spacing. H2 and W2 are cover dimensions. H3 and W3 (not shown in diagram) are the enclosure

dimensions without cover.

Wire Ranges

H1 H2 H3 W1 W2 W3

18.5 in. 22.5 in. 22 in. 10.5 in. 15.4 in. 14.4 in. 3.8 in 470mm 571.8mm 558.8mm 266.7 392mm 366mm 97.5mm

23.5 in. 26.4 in. N/A 8.3 in. 12.6 in. N/A 6.3 in. 597mm 671.7mm N/A 211mm 320.7mm N/A 159.6mm

Amps Conductor Lug Neutral Lug Ground Lug

50 1/0 - #14 2/0 - #14 2/0 - #14

100 2/0 - #14 2/0 - #14 2/0 - #14

Height Width

Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com

• Dual coil (100A) and single coil (50A) designs.

• Main contacts are silver plated or silver alloy to resist welding and sticking.

• NEMA 1 (indoor rated) enclosure is standard.

• 5 Year Limited Warranty.

Depth

50 Amp Switch

100 Amp Switch