Cummins QuietConnect™ C125 N6 125KW Liquid-Cooled: RS125 Series

 

Robust product design and testing - The generator is designed to operate under extreme environmental conditions including cold weather starts at as low as -40ºF. The generator is tested and certified per the latest EPA, UL and IBC Seismic standards and is capable of meeting NFPA110 requirements when equipped with the necessary accessories and properly installed.

 

Flexible exercise mode - The innovative, flexible exercise mode enables the generator to exercise at a time, frequency and duration that suits the customer's preference - as little as 2 minutes every 6 months - reducing unnecessary fuel consumption, emissions and noise.

 

Advanced enclosure design - The aesthetically appealing enclosure incorporates special designs that deliver the quietest generator of its kind. Aluminum material plus durable powder coat paint provides the best anti- corrosion performance. The generator set enclosure has been evaluated to withstand 180 mph wind loads in accordance with ASCE 7-10. The intelligent design has hinged doors to provide easy access for service and maintenance.

 

Control system - The PowerCommand® electronic control is standard equipment and provides total generator set system integration including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, output metering, auto-shutdown at fault detection and NFPA 110 level 1 compliance.

 

Self-diagnostics and easy service - The PowerCommand® electronic control provides industry- leading self-diagnostic capabilities. In addition, critical components of the generator are designed to ensure service and preventive maintenance can be completed in a short period of time.

 

Weight, size, and sound level

Weight: 3915 lbs. (1776 kg)2

Size: Length 143.0 in (3621 mm), width 40.0 in (1016 mm), height 72.0 in (1836 mm)

Sound: 71 dB(A) at 23 ft. (7 m) with sound level 2 enclosure

 

series	Model	Phase	Voltage (V)	Frequency (Hz)	Rated amps (NG/LPV fuel)	Circuit breaker (Amps)
RS125	C125 N6	1	120/240	60	520.8/520.8	600
		3	120/208	60	433.6/433.6	600
		3	277/480	60	187.9/187.9	250
		3	120/240	60	375.8/375.8	400

 

 

SPECIFICATIONS

 

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

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, green 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

• Large battery rack

• Flexible fuel line ·
• Literature (English) – operator’s manual, installation quick guide and manual, service manual

 

Packaging

• Shipping pallet, poly bag

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

Engine

• Design: Turbocharged and aftercooled
• Bore: 114.1 mm (4.49 in)
• Stroke: 144.5 mm (5.69 in)
• Displacement: 8.9 liters (543 in3)
• Cylinder block: Cast iron, in-line 6 cylinder
• 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: kPa (in H2O): 1.5 (6.0)

Maximum: kPa (in H2O) 3.5 (13.0)

 

 

 

 

 

 

 

 

 

WARRANTY

Base warranty – 2-year standby

Extended warranties available