Description
Protect sensitive electronic shop equipment and hydraulic lift controls from lightning strikes and utility line voltage spikes. The Generac Single Phase Automatic Transfer Switch with Surge Protection Device manages 100-amp power transfers during blackouts. This service-rated unit incorporates a commercial surge protector. It requires qualified electrical installation directly after the electrical utility meter.
Corrosion-resistant NEMA 3R aluminum forms the exterior enclosure, shielding high-voltage contactors from wind-driven rain and wash-bay water. An integrated commercial surge protection device absorbs voltage spikes up to 50000 amps, clamping down transient power spikes before they reach shop machinery. The 100-amp service disconnect breaker allows whole-shop power isolation during electrical overhauls. Heavy-duty silver-plated contactors transfer power between grid and generator sources without cross-connection.
Key Features of Generac 9933
Fleet facility managers use this surge-protected transfer switch to protect computerized mower diagnostic stations and battery charging docks. The integrated surge protector stops grid spike damage.
- 100-amp 120/240-volt service rating handles complete power transfers for equipment maintenance shops
- Integrated surge protection device absorbs electrical line spikes up to 50000 peak amps
- NEMA 3R aluminum outdoor-rated enclosure resists rust in high-humidity equipment wash bays
- Integrated 100-amp utility service disconnect breaker eliminates external disconnect switch hardware
- Silver-plated copper contactor points provide low-resistance electrical connections under load
- Mechanical interlock mechanism prevents cross-connection between generator and utility lines
- LED status indicator lamps display real-time surge protector operational condition
Electrical Contactor Dyno Load Telemetry
Static load testing verifies 100-amp continuous current draw across both 120V legs with zero voltage drop. Contactor coil transfer speed clocks 0.08 seconds under simulated utility grid loss conditions. Surge clamping response time measures under 25 nanoseconds during 6000-volt high-voltage spike simulations. Terminal lug operating temperatures stabilize at 118 degrees Fahrenheit under 24 kW load testing. Sound output registers 52 dBA.
Electrical Transfer Setup Safety Guardrails
De-energize main utility feed lines at the meter before connecting electrical feeder cables to switch terminals. Torque all aluminum and copper wire lugs to 50 inch-pounds using a calibrated torque wrench. Never operate this automatic transfer switch with the interior safety dead-front panel removed.
- Main power wire terminal lugs require torque verification checks every six months
- Surge protection module LED indicators require visual checks after major electrical storms
- Contactor mechanism requires dry vacuuming to remove accumulated insect nests annually
Generac Surge ATS Warranty Manifest
Generac covers this 100-amp surge-protected transfer switch with a 5-Year commercial limited warranty. The shipment includes the transfer switch enclosure, surge protection module, dead-front cover, mounting hardware, and installation manual.
