The NEW Guardian 20 kW standby generator provides the quietest, cleanest and most affordable whole house power outage protection on the market.The aluminum enclosure ensures corrosion
resistance for the generator's weather-proof housing as the stylish fascia trims out its industrial design. It comes standard with the PowerManager® LTS automatic transfer
switch that prevents overload while eliminating the need to add a separate service disconnect when backing up the entire house. For extra convenience, this model has a digital control panel,
external main circuit breaker, system status LED and maintenance interval LED as well
as an external GFCI outlet for outdoor power needs.
Convenient, Hands-Free Operation
No fueling. No manual start. No extension cords. Runs on natural gas or liquid propane
Clean, Smooth Power
True Power™ Technology provides safe operation of sensitive electronics
Powerful Output
Highest power output in its class
Quietest, Confident Operation
Patented Whisper Test™ feature makes the 20kW model as quiet as a car at idle during the weekly self-testing cycle
Easiest Installation
Simple, pre-packaged system
PowerManager LTS transfer switch
Provides whole house protection by managing essential and non-essential circuits
Generac OHVI® Industrial Engine
The only air-cooled engine designed specifically for generators
- Long-run, long-life design: Over 3,000 hours of run time
- High-torque design: Responds instantly to large electrical loads
- Low-maintenance: 2 year, 200 hour service intervals
Ultimate Weather Protection
Aluminum enclosure for superior corrosion resistance
Base Fascia
Matching trim piece finishes off the new design
UL Listed
For safety and certified power ratings
| Generator Set |
| Model Number | 5506 |
| Rated Power (LP / NG) | 20/18 kW |
| Rated Amps @ 60 Hz | 240 V, 1Ø |
| 83.3/75 |
| Surge Watts - 240V, 1 Ø | 35470 |
| Surge Amps | 147 |
| Engine (Generac OHVI) | 999cc / V-Twin |
| Alternator RPM | 3600 |
| Enclosure | Aluminum |
| Whisper Test | Yes |
| Sound Level (dBA @ exercise) | 60 |
| (dBA @ normal operation) | 66 |
| Dimensions (L" x W" x H") | 48x24x28 |
| Compatible Transfer Switches | 200 Amp Load Shedding / SE |
| Unit Weight (lbs.) | 451 |
| Transfer Switches |
| No. of Poles | 2 |
| Current Rating (amps) | 200 |
| Service Entrance Rated | Yes |
| Load Shedding Capability | Standard |
| Voltage Rating (VAC) | 250 |
| Utility Voltage Monitor (fixed) | |
| - Pick-up | 0.75 |
| - Drop out | 0.65 |
| Return to Utility | Approx. 15 seconds |
| Exercise 7 minutes weekly | Standard |
| UL Listed | Yes |
| Enclosure Type | NEMA 3R (Outdoor rated) |
| Enclosure Material | Aluminum |
| Dimensions (H" x W" x D") | 42 x 20 x 7.25 |
| GenReady |
| GenReady Load Center with EZ Transfer Operator | |
| Only applicable for generators that are 30 kW and smaller | |
| Main Breaker Amperage | 200 |
| Voltage | 120/240, 1ø |
| Generator Protected Circuits – Feeder Breaker Amperage | 125 |
| Utility Sensing Circuit Breaker | 1x15 Amp 1 pole |
| Maximum Number of Protected Circuits | 18 (30 with tandem breakers) |
| Maximum Number of Non-protected Circuits | 10 |
| Enclosure Type | NEMA 1 |
| Service Entrance Rated | Yes |
| External Dimensions (H" x W" x D") | 42 x 14.5 x 4 |
| Controls |
| Engine Start Sequence | Cyclic cranking: 16 sec. on, 7 sec. rest. 90 sec. maximum duration |
| Automatic Low Oil Shutdown | Standard |
| Overspeed Shutdown | Standard, 72 Hz |
| Overcrank Protection | Standard |
| Automatic Voltage Regulation with Over-Voltage Protection | Standard |
| Engine Warmup | 10 seconds |
| Engine Cool-Down | 1 minute |
| Safety Fuse | Standard |
| Starter Lockout | Starter cannot re-engage until 5 seconds after the engine has stopped |
| 2.5 Amp Timed Trickle Battery Charger | Standard |
| Auto Switch | Automatic start on utility failure/7 day exercise |
| Off Switch | Stops unit. Power is removed. Control and charger still operate |
| Manual / Test (start) | Start with starter control, unit stays on. If utility fails, transfer to load takes place |
| Full Monitoring System | Oil pressure, engine temperature, engine speed, cranking time, starter lockout, utility sensing |
| Shutdown and LED Indicators | Overspeed and overcrank, low oil pressure, high oil temperature, RPM sensor loss, low battery voltage, system ready |