Honeywell 100A 120/240V Transfer Switch | NEMA 3R Outdoor Generator Switch

SKU: RXSM100A3

Weight	32 lbs
Dimensions	24 × 16 × 10 in

$1,199.99

In stock — available to order.

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Same-item volume pricing

Quantity	Unit price	Saving
1–4	$1,199.99	0%
5–9	$1,139.99	5%
10+	$1,079.99	10%

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Honeywell 100A 120/240V Transfer Switch | NEMA 3R Outdoor Generator Switch

Specifications & product details

Overview

Honeywell 100A Automatic Transfer Switch – 120/240V, NEMA 3R Outdoor RatedThe Honeywell Home RXSM100A3 100A Transfer Switch is engineered to automatically detect utility outages and safely switch your home or business over to generator power. When utility power returns, the switch transfers the load back to the grid and disconnects generator power—without any manual intervention.

Housed in a durable aluminum NEMA 3R enclosure, this ATS is built for outdoor installation and offers excellent corrosion resistance. Honeywell’s Sync Smart monitoring technology ensures safe, reliable operation for residential or light commercial standby generator systems. Compatible with most single-phase standby generators.

Key FeaturesAutomatic operation — detects outages and transfers load instantly100 Amp rating for whole-home or partial-load service120/240V single-phase compatibilityNEMA 3R outdoor enclosure for harsh environmentsUL Listed for safety and compliance

Heavy-duty 2/0–14 lug range supports a wide conductor size10,000A withstand rating for fault protection

Supports internal or external mountingApplications

Residential backup generator systemsLight commercial standby power setupsAgricultural and rural property backup powerHome standby installations using Honeywell, Generac, or similar generatorsManufacturer Information

Brand: Honeywell Home

MFG#: RXSM100A3DLP#: 1GG214

Condition

Brand New

Product details

Part / SKU	RXSM100A3

Package includes

Honeywell 100A 120/240V Transfer Switch | NEMA 3R Outdoor Generator Switch

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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