Cummins 125kW 1PH 120/240V Home Standby Generator Quiet Connect™ RS125 1PH 120/240V

Cummins 125kW 1PH 120/240V Home Standby Generator Quiet Connect™ RS125 1PH 120/240V

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
• Length 143.0 inches, width 40.0 inches, height 72.0 inches
• Weight of generator is 3915[*] pounds
• Sound level is 73 dB(A) at 23 feet with sound level 2 enclosure
• Manufacturer’s 2 year warranty

[*] Weight above is average. Actual weight varies with product configuration

Product Specifications:

Product Features

Engine:

• Natural gas/propane
• 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 2.3
• 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
• Battery rack
• Literature (English) – operator’s manual, installation

Packaging

• Shipping pallet

Warranty

Base warranty – 2-year standby

Extended warranties available

Generator Set performance

Governor regulation class: ISO 8528 Part 1 Class G2

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: Turbocharged and aftercooled

Cylinder block: Cast iron, in-line 6 cylinder

Bore: 114.1 mm (4.49 in)

Stroke: 144.5 mm (5.69 in)

Displacement:8.9 liters (543 in3)

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

to 32° F (-18° C to 0° C)

Battery charging alternator: 100 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 (13.0 in H20)

Typical Fuel Consumption:

RS125 Fuel consumption – natural gas:

RS125 Fuel consumption – Propane:

Sound: 75 dB(A) at 23 ft. (7 m) with sound level 1 enclosure [*]
Rated amp[**] (NG / LPV): 520.8 / 520.8
[*] Quietest point at a normal load.
 Sound performance may be affected by installation.
[**] Derating guidelines: Engine power available up to 1800 m (5900 ft.) and ambient temperatures up to 40° C (104° F).
Above these conditions, derate at 4.25% per 300 m (985 ft.) and 2% per 10° C (18° F)

PRODUCT Related documents:

EPA Exhaust Emission Compliance Statement

Exhaust Emission Data Sheet

Genset Spec Sheet

IBC Seismic Certificate of Compliance

IBC Seismic Installation Requirements

Letter of Conformity

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