Automatic Transfer Switch, 100A | Non-Service Entrance Essential 16 Circuit
Last updated Nov 1, 2026 · 4 entries in Page history
Generac's G0099470 is a 100A, 120/240 volt automatic transfer switch with a 16 space load center, expandable to 24 circuits with tandem breakers, for Evolution or Power Zone 200 generators.
As the source prints itRated Amperage100Press to see it in the sheet ↓
As the source prints itIntegrated Load Center16 Spaces, Up to 24 CircuitsPress to see it in the sheet ↓
As the source prints itWithstand Rating (Amps)10,000Press to see it in the sheet ↓
As the source prints itWeight (lbs/kgs)39 / 17.7Press to see it in the sheet ↓
- Part number or model
- G0099470
- Catalog number
- Not assigned yet
Specifications
40 fields, as the sources state them
Overview
- Overview
- Housed in a NEMA 3R enclosure, this transfer switch has an integrated, 16 circuit load center. Designed to supply power to only those designated circuits, it ensures only the essentials are covered by the standby air-cooled generator during an emergency. This series of Generac Residential Automatic Transfer Switches is designed for use with single phase generators that utilize an Evolution™ or Power Zone™ 200 controller. Designed with a focus on enhanced reliability to deliver increased performance and owner peace of mind.1
- Features
- Hardened Transfer Switch Control: This hardened transfer switch control has been purposely designed to combat harmful utility power disturbances such as brownouts, while ensuring reliable automatic transfer performance. NEMA 3R Outdoor Rated Enclosure: Designed to give options as to whether to install indoors or outdoors, this durable enclosure protects the internal components of the switch from rain, snow, ice, and debris to ensure lasting reliability. 5 Year Limited Warranty: With an increase in performance and reliability, we stand by our innovative product design with a strong 5-year limited warranty.1
Specifications
Spec sheet: Description
- Description
- This new series of Generac Automatic Transfer Switches is designed for use with single phase generators which utilize an Evolution™ or Power Zone™ 200 Controller. This transfer switch has an integrated load center to allow for essential circuit backup. It is especially useful where the main service is large, and only a portion of the building will be served by the generator, or when the main electrical breaker panel is located outdoors. It comes standard with a 16 space breaker panel that can be populated with the appropriate sized breakers needed for any application. This transfer switch is cETLus listed. This switch is listed for use with Siemens®, Eaton®, or Square D® one inch breakers. The bottom four breaker spaces will accommodate tandem breakers, making the panel expandable to 24 circuits. This new series of switch includes a fast mount hanging system to simplify and expedite installations.2
- Standard Features
- This automatic transfer switch is housed in an all-weather, aluminum NEMA/UL Type 3R enclosure with electrostatically applied and baked powder paint. The Heavy Duty Generac Contactor is a cETLus component recognized device, designed for years of service. The controller on the generator handles all of the timing, sensing and exercise functions. Multi listed for use with 1" standard, tandem, GFCI and AFCI breakers from Siemens, Eaton, and Square D for the most flexible and cost-effective installation. All switches are covered by a 5 year limited warranty.2
- Contactor Rating
- The automatic transfer switch contactor is rated at 25O VAC and is available in a single phase configuration only.2
Spec sheet: Functions
- Functions
- All timing and sensing functions originate in the generator controller when used in conjunction with units utilizing Evolution™ or Power Zone™ 200 controls. Refer to generator's owner's manual for further details on the listed settings and adjustments. The transfer switch can be operated manually without power applied.2
- Utility Voltage Drop-out
- Power Zone 200: Adjustable, 75% - 80% Evolution: Adjustable by a Qualified Dealer, 58% - 71%2
- Timer to Generator Start
- 10 Second Factory Set, Adjustable Between 2 - 1,500 Seconds by a Qualified Dealer*2
- Engine Warmup Delay
- 5 Seconds2
- Standby Voltage Sensor
- 60% for 5 Seconds2
- Utility Voltage Pickup
- Power Zone 200: Adjustable, 84% - 89% Evolution: Adjustable by a Qualified Dealer, 79% - 90%2
- Re-transfer Time Delay
- 15 Seconds2
- Engine Cooldown Timer
- 60 Seconds2
- Exerciser
- Power Zone 200: 5 to 30 Minutes Adjustable, Weekly/Bi-Weekly/Monthly Evolution: 5 to 12 Minutes Adjustable, Weekly/Bi-Weekly/Monthly2
Spec sheet: Specifications
Spec sheet: Dimensions
Owner's manual
- Model Number
- G0099470 A0009102580* *A0009102580 - Assembly number when bundled with a generator3
- Introduction
- This transfer switch is listed with ETL under the UL 67 and CSA C22.2 no. 29 standards.3
- Switch Rating
- 100A3
- Wire Range
- #14-1/0 AWG (Cu/Al)3
- Conductor Tightening Torque
- 50 in-lbs (5.6 Nm)3
- Circuit capability
- This transfer switch is suitable for use on a circuit capable of 10,000 (100A) RMS symmetrical amperes, 240 VAC maximum.3
- Mounting
- Fasteners must adequately secure the 35 lbs (15.9 kg) transfer switch weight to the supporting structure.3
Sources: generac.com, Product page, read Nov 1, 2026 UTC; productmanuals.generac.com, Spec Sheet linked from the page, Part No. A0010611346 Rev. A 07/13/2026, read Nov 1, 2026 UTC; productmanuals.generac.com, Owner's Manual listed by the page, pages 2, 5, 9, 11 and 13, read Nov 1, 2026 UTC.
Size and weight
Inches and pounds, millimetres and kilograms
The product
| What | Inches and pounds | Millimetres and kilograms |
|---|---|---|
| Dimensions | H30.0 | H762 |
| DimensionsDepth with fast mount | D6.9 in | D175.2 mm |
| Weight | 39 lb | 17.7 kg |
Figures in black are the maker’s. Figures in grey are converted by the wiki (1 in = 25.4 mm, 1 lb = 0.45359237 kg).
Compare with
1 of the same family on the wiki
More from Generac
6 pages on the wiki
Documents
4 linked, none copied here
- Spec Sheet (PDF)spec sheet
- OMNL TS 100A 16 CIR 60Hz 3R ENmanual
- EV RTG LCTR ASSY 16 CIR-GENdiagram
- ID 16 CIRCUIT NEMA 3R TRANSFER SWdiagram
References
4 sources, each with the day it was read
- generac.com, Product page, read Nov 1, 2026 UTC. Supports 4 specifications, the documents
- productmanuals.generac.com, Spec Sheet linked from the page, Part No. A0010611346 Rev. A 07/13/2026, read Nov 1, 2026 UTC. Supports 29 specifications, the documents
- productmanuals.generac.com, Owner's Manual listed by the page, pages 2, 5, 9, 11 and 13, read Nov 1, 2026 UTC. Supports 7 specifications, the related products, the documents
- generac.com, generac.com's address for model RXG16EZA3, read Nov 1, 2026 UTC. Supports the related products
Page history
Every read and every change to this page, newest first
- Corrected after a second agent checked the reading against the maker’s pages: a photo of another model taken off where there was one, and figures, dates and labels set right.Claude Opus (AI agent) · Not reviewed yet
- Page created from the maker’s page, among the products buyers searched on PriceQ. Product type proposed. Descriptions written at three lengths from the specifications.Claude Opus (AI agent) · Not reviewed yet
- Read on generac.com: Product page; generac.com's address for model RXG16EZA3.Claude Opus (AI agent) · Not reviewed yet
- Read on productmanuals.generac.com: Spec Sheet linked from the page, Part No. A0010611346 Rev. A 07/13/2026; Owner's Manual listed by the page, pages 2, 5, 9, 11 and 13.Claude Opus (AI agent) · Not reviewed yet
The descriptions are written by the wiki from the specifications above, never copied from the maker.
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