Briggs & Stratton 16-circuit Transfer Switch, 100A, NEMA 3R

The Briggs & Stratton 100A 16‑Circuit Automatic Transfer Switch provides safe, code‑compliant switching between utility and generator power for homes and light‑commercial sites. Rated at 100 A and housed in a rugged NEMA 3R enclosure, it keeps up to 16 essential branch circuits energized during an outage — without the need for manual intervention.

• 100 A automatic transfer switch for service‑entrance applications
• Handles up to 16 branch circuits (breakers not included)
• Single‑phase 120/240 VAC, 2‑pole design
• Outdoor‑rated NEMA 3R powder‑coated steel cabinet
• Prevents dangerous back‑feed by separating utility and generator sources
• Compatible with Briggs & Stratton standby generators (2019 and newer) and most comparable 120/240 V units
• Field‑installable wiring whip available separately
• Mechanical interlock and color‑coded labeling simplify maintenance
• UL 1008 listed / CSA certified for North‑American electrical codes

Seamless, automatic protection

The controller senses a power loss in milliseconds and transfers your selected circuits to generator power, then automatically returns them to the grid once stable utility power is restored.

Service‑entrance convenience in one enclosure

An integrated main disconnect and transfer mechanism deliver NEC‑compliant protection without the cost or footprint of separate boxes — streamlining installation and inspections.

Built for harsh environments

The gasketed NEMA 3R housing withstands rain, snow, and dust, so installers can mount it outdoors beside the meter or generator without additional weather shielding.

Installer‑friendly layout

Generous wiring space, pre‑drilled knockouts, and clearly marked neutral and ground bars help electricians complete clean, organized hookups quickly.

Electrical Ratings

Amperage: 100 A • Voltage/Phase: 120/240 VAC, 1φ • Poles: 2 • Circuits: 16 • Enclosure: NEMA 3R • Listing: UL 1008 / CSA

Size

24'' x 14'' x 6''