Kohler 12RES-QS11 (12kW)
The Kohler 12RES is a 12 kW residential standby generator built around the proven Kohler Series 7000 V-twin engine, delivering powerful, reliable air-cooled performance for home backup power. Configured for 1-phase, 120/240V operation and UL/cUL listed, this multi-fuel unit runs on either natural gas or LPG with simple field conversion between the two while maintaining emission certification. Housed in a durable steel enclosure finished with e-coat corrosion protection and a powder coat topcoat, the 12RES is engineered for outdoor installation, quiet neighborhood-friendly operation, and dependable automatic standby power whenever utility service is interrupted.
Kohler 12RES-QS11 (12kW)
US$ 5,549.00
- 12 kW standby power rating, 1-phase, 120/240V, UL/cUL listed
- Kohler Series 7000 V-twin engine with efficient OHV design and air-cooled reliability
- Multi-fuel capability — runs on natural gas or LPG with simple field conversion
- ADC controller for automated start, monitoring, and system management (No OnCue Plus on this configuration)
- 40 amp line circuit breaker (LCB)
- Steel enclosure, e-coat dipped with durable powder coat finish for corrosion resistance
- Designed for outdoor installation only, with fuel and electrical connections through the enclosure wall
- Quiet, neighborhood-friendly operation
- Approved for stationary standby applications served by a reliable utility source
- 5-year or 2000-hour limited warranty
Description
Additional Info
Reviews
Description
Kohler 12RES-QS11 (12kW) Details & Specifications:
General
- Model: 12RES
- Description: 12RES, 1 PH, 120/240V, UL/cUL (No OnCue Plus on ADC Controller)
- Standby Power Rating: 12 kW / 12 kVA
- Voltage: 120/240V, 1-Phase, 60 Hz
- Fuel Types: Natural Gas or LPG, field-convertible
- Line Circuit Breaker (LCB): 40 Amps
Engine
- Manufacturer: Kohler
- Engine Model: KT725, Kohler Series 7000 V-twin, OHV design
- Cooling: Air-Cooled
- Rated RPM: 3600 (60 Hz)
- Governor: Electronic, isochronous frequency regulation
- Cylinder Head Material: Aluminum
- Air Cleaner Type: Dry
Alternator
- Type: 2-Pole, Rotating Field (2F4)
- Output Reconnectable: 120/240V
- Voltage Regulator: Digital, ±1.0% RMS no-load to full-load
- Insulation: NEMA MG1-1.66, Class H material and temperature rise
- Bearing: 1, Sealed Ball
- Coupling: Direct
Controller
- Type: ADC Controller (No OnCue Plus on this configuration)
- Provides automatic start with programmed cranking cycle
- Digital isochronous governor for steady-state speed control
- Digital voltage regulation for stable power quality
Engine Electrical
- Ignition System: Electronic, Capacitive Discharge
- Starter Motor Rated Voltage: 12V DC
- Battery: 12V DC, Group Size 51, 500 CCA, purchased separately
Enclosure & Installation
- Material: Steel, dipped in e-coat with durable powder coat finish for corrosion protection
- Designed for outdoor installation only
- Fuel and electrical connections pass through the enclosure wall
- Wind Rating: 181 mph
- Sound enclosure includes sound-deadening, flame-retardant foam (UL 94, Class HF-1)
Certifications & Approvals
- UL/cUL Listed
- Meets EPA 40 CFR 60 stationary source emission standards (LPG and natural gas)
- Approved for stationary standby applications served by a reliable utility source
Dimensions & Weight
- Overall Size (L x W x H): 30.6 x 28 x 32.4 in.
- Shipping Weight: 433 lbs.
Warranty
- 5-Year or 2000-Hour Limited Warranty
product specifications:
| Specification | Detail |
| Model | 12RES |
| Description | 12RES, 1 PH, 120/240V, UL/cUL (No OnCue Plus on ADC Controller) |
| Standby Power Rating | 12 kW |
| Voltage | 120/240V |
| Phase | 1-Phase |
| Frequency | 60 Hz |
| Fuel Types | Natural Gas or LPG (field-convertible) |
| Standby Rating - Natural Gas | 12 kW/12 kVA, 50 Amps |
| Standby Rating - LPG | 12 kW/12 kVA, 50 Amps |
| Engine Manufacturer | Kohler |
| Engine Model | KT725, Kohler Series 7000 V-twin, OHV |
| Engine Cooling | Air-Cooled |
| Alternator | 2F4, 2-Pole, Rotating Field |
| Voltage Regulator | Digital |
| Controller | ADC Controller (No OnCue Plus) |
| Line Circuit Breaker (LCB) | 40 Amps |
| Starter Motor Voltage | 12V DC |
| Battery | 12V DC, Group Size 51, 500 CCA (purchased separately) |
| Enclosure Material | Steel, e-coat dipped with powder coat finish |
| Installation Type | Outdoor installation only |
| Certifications | UL/cUL, EPA 40 CFR 60 Stationary Source Standards |
| Wind Rating | 181 mph |
| Warranty | 5-Year or 2000-Hour Limited Warranty |
| Overall Dimensions (L x W x H) | 30.6 x 28 x 32.4 in. |
| Shipping Weight | 433 lbs. |
product related documents:
tp6515 Operation Manual Generator.pdf
tp2428c Service Manual Engine.pdf
tp5868 Parts Catalog Generator.pdf
Additional Info
| Weight | 433 lbs |
|---|---|
| Dimensions | 30.6 × 28 × 32.4 in |
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