Generac Power Systems 04389-2, 04456-2, 04390-2 Specifications, ‹ 1.5.1 Generator, ‹ 1.5.2 Engine

Section 1 — General Information

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators

1.5 SPECIFICATIONS

‹ 1.5.1 GENERATOR

		Model 04389-2		Model 04456-2	Model 04390-2
Rated Max. Continuous Power Capacity (Watts*)		6,000 NG/7,000 LP		12,000 NG/12,000 LP	13,000 NG/15,000 LP†
Rated Voltage		120/240		120/240	120/240
Rated Max. Continuous Load Current (Amps)
	120 Volts**	50.0 NG/58.3 LP		100.0 NG/100.0 LP	108.3 NG/125.0 LP
	240 Volts	25.0 NG/29.2 LP		50.0 NG/50.0 LP	54.2 NG/62.5 LP
Main Line Circuit Breaker		30 Amp		50 Amp	60 Amp/70 Amp†
Phase		1		1	1
Number of Rotor Poles		2		2	2
Rated AC Frequency		60 Hz		60 Hz	60 Hz
Power Factor		1		1	1
Recommended Air Filter		Generac Part # C8127		Generac Part # C8127	Generac Part # C8127
Battery Requirement		Group 26/26R		Group 26/26R	Group 26/26R
		12 Volts and		12 Volts and	12 Volts and
		350 Cold-cranking		550 Cold-cranking	550 Cold-cranking
		Amperes Minimum		Amperes Minimum	Amperes Minimum
Weight		452 Pounds		470 Pounds	487 Pounds
Output Sound Level @ 23 ft (7m) at full load		68 db (A)		70.5db (A)	71.5 db (A)
Normal Operating Range			-20°F (-28.8°C) to 104°F (40°C)

*Maximum wattage and current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Maximum power decreases about 3.5 percent for each 1,000 feet above sea level; and also will decrease about 1 percent for each 6° C (10° F) above 16° C (60° F) ambient temperature.

**Load current values shown for 120 volts are maximum TOTAL values for two separate circuits. The maximum current in each circuit must not exceed the value stated for 240 volts.

† 15,000 watt with upgrade kit 04578-1. Kit includes power harnesses and 70 amp 2-pole circuit breaker.

‹1.5.2 ENGINE

	Model 04389-2	Model 04456-2	Model 04390-2
Type of Engine	GH-410	GT-990	GT-990
Number of Cylinders	1	2	2
Rated Horsepower	14.5 @ 3,600 rpm	26 @ 3,600 rpm	30 @ 3,600 rpm
Displacement	410cc	992cc	992cc
Cylinder Block	Aluminum w/Cast	Aluminum w/Cast	Aluminum w/Cast
	Iron Sleeve	Iron Sleeve	Iron Sleeve
Valve Arrangement	Overhead Valves	Overhead Valves	Overhead Valves
Ignition System	Solid-state w/Magneto	Solid-state w/Magneto	Solid-state w/Magneto
Recommended Spark Plug	RC12YC	RC12YC	RC12YC
Spark Plug Gap	0.76 mm (0.030 inch)	0.508 mm (0.020 inch)	0.508 mm (0.020 inch)
Compression Ratio	8.6:1	9.5:1	9.5:1
Starter	12 Vdc	12 Vdc	12Vdc
Oil Capacity Including Filter	Approx. 1.5 Qts	Approx. 1.7 Qts	Approx. 1.7 Qts
Recommended Oil Filter	Generac Part # 70185	Generac Part # 70185	Generac Part # 70185
Recommended Air Filter	Generac Part # 0C8127	Generac Part # 0C8127	Generac Part # 0C8127
Operating RPM	3,600	3,600	3,600

6 Generac® Power Systems, Inc.