Cummins 50kW 3PH 277/480V Home Standby Generator Quiet Connect™ RS50 3PH 277/480V

Cummins 50kW 3PH 277/480V Home Standby Generator Quiet Connect™ RS50 3PH 277/480V

Details and Specifications

Features:

• Designed to be extremely quiet and neighborhood friendly
• Compact and aesthetically pleasing design blends into your landscape
• Generator equipped with Cummins PowerCommand electronic control to provide industry leading self-diagnostic capabilities
• Robust design so the generator can handle even the harshest of weather conditions
• Flexible exercise mode to suit your preference and reduces unnecessary fuel consumption, emissions and noise

Specifications:

• Operates on natural gas or propane
• Length 118.7 inches, width 40.0 inches, height 58.3 inches
• Weight of generator is 2403 pounds
• Sound level is 69.3 dB(A) at 23 feet with sound level 2 enclosure
• Manufacturer’s 2 year warranty

Product Specifications:

Product Features

Engine:

• Natural gas/propane 1800 rpm engine
• Engine air cleaner – normal duty
• Electronic governor, isochronous
• Engine starter, 12 VDC motor
• Shutdown – low oil pressure
• Extension – oil drain
• Engine oil – included

Fuel System:

• Single fuel – natural gas or propane vapor, field selectable

Alternator:

• 60 Hz, 1 phase, 4 lead, or 3 phase, 12 lead, 120° C temperature rise at 40° C ambient
• Exciter/voltage regulator – torque match

Control:

• PowerCommand 1.1
• Display language – English
• Control mounting, left facing

Electrical:

• Single circuit breaker, UL certified, right-side mounted
• Battery charging alternator, normal duty
• Battery charger – 6 Amp, regulated

Cooling:

• Generator set cooling capability – 50° C
• Shutdown – low coolant level
• Engine coolant – 50/50 mixture
• Extension – coolant drain

Enclosure:

• Aluminum enclosure Sound Level 1 with muffler installed, sandstone color
• Wind rating – 180 mph

Code Compliance:

• UL 2200
• EPA emissions, emergency, stationary, 40CFR60
• IBC Seismic
• NFPA 110 capable

Generator set application

• Coolant heater
• Crank case vent heater
• Battery rack
• Flexible fuel line
• Literature (English) – operator’s manual, installation
• quick guide and manual, service manual

Packaging

• Shipping pallet

Warranty

Base warranty – 2-year standby

Extended warranties available

Generator Set performance

Governor regulation class: ISO 8528 Part 1 Class G3

Voltage regulation, no load to full load: ±1.0%

Random voltage variation: ±1.0%

Frequency regulation: Isochronous

Random frequency variation: ± 0.25% @ 60 Hz

Radio frequency emissions compliance: FCC code Title 47 part 15 Class B

See Accessories section for details on kits

Engine Specifications

Design: Naturally aspirated

Cylinder block: Cast iron, in-line 6 cylinder

Bore: 102.1 mm (4.02 in)

Stroke: 119.9 mm (4.72 in)

Displacement: 5.9 liters (359 in3)

Battery capacity: 850 Amps at ambient temperature of 0° F

to 32° F (-18° C to 0° C)

Battery charging alternator: 52 Amps

Starting voltage: 12-Volt, negative ground

Lube oil filter type(s): Spin-on with relief valve

Standard cooling system: 50° C (122° F) ambient

cooling system

Rated speed: 1800 rpm

Fuel Supply Pressure

Minimum: 1.5 kPa (6.0 in H20)

Maximum: 3.5 kPa (14.0 in H20)

Typical Fuel Consumption:

RS50 Fuel consumption – natural gas:

RS50 Fuel consumption – LP vapor:

Sound: 72 dB(A) at 23 ft. (7 m) with sound level 1 enclosure [*]
Rated amp[**] (NG / LPV): 75.2/75.2
[*] Quietest point at a normal load.
 Sound performance may be affected by installation.
[**] Derating guidelines: Engine power available up to 152 m (500 ft.) at ambient temperatures up to 25 °C (77 °F).
Above these elevations derate at 4% per 305m (1000 ft.) and 2% per 10 °C above 25 °C (77 °F).

PRODUCT Related documents:

Exhaust Emission Data Sheet

Foundation Drawing

Genset Spec Sheet

IBC Seismic Certificate of Compliance

IBC Seismic Installation Requirements

Outline Drawing, Genset Foundation

Outline Drawing, Sound Attenuation Level 1 and Level 2 Enclosure

POWER TO WEATHER brochure

PROTECTING YOUR HOME brochure

Wiring Diagram, Genset