Spec Sheet

ManualsBrandsCummins Power Generation ManualsLiquid-CooledCummins RS25 Quiet Connect™ Series 25kW Standby Power Generator (120/240V Single-Phase)

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Specification sheet

Quiet Connect

Series

RS25

Features and benefits

Robust product design and testing - The

generator is designed to operate under extreme

environmental conditions including cold weather

starts at as low as -40

F. 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 ASCE7-10. The intelligent

design has removable panels and service doors

to provide easy access for service and

maintenance.

Self diagnostics and easy service - The

generator is equipped with Cummins

PowerCommand electronic control to provide

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:

1109 lbs (503 kg)

Size:

Length 72 in (1829 mm), width 34 in (864 mm), height 45.5 in (1156 mm)

Sound: 64 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)

RS25 C25 N6

1 120/240 60 104.2/104.2 125

3 120/208 60 86.7/86.7 100

3 120/240 60 75.2/75.2 90

¹ Derating guidelines: Natural Gas: Engine power available up to 0m (0 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).

Propane: Engine power available up to 114m (375 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).

Summary of content (6 pages)

PAGE 1
Specification sheet Quiet Connect Series RS25 TM Features and benefits Robust product design and testing - The generator is designed to operate under extreme environmental conditions including cold weather starts at as low as -40 oF. 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.
PAGE 2
Product features Generator set performance 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 Fuel System  Single fuel – natural gas or propane vapor, field selectable Alternator  60 Hz, 1 phase, 4 lead, or 3 phase, 12 lead, 120 oC temperature rise at 40 oC ambient  Exciter/voltage regulator – torque match Control  PowerCommand 1.
PAGE 3
Average fuel consumption Fuel consumption – natural gas Load: Ft3/hr: M3/hr: 1/4 123.8 3.5 1/2 185.7 5.2 Fuel consumption – LP vapor 3/4 247.6 6.9 Full 309.5 8.7 Load: Ft3/hr: M3/hr: Gal/hr 1/4 51.6 1.4 1.4 1/2 75.6 2.1 2.1 3/4 99.6 2.8 2.8 Full 125.4 3.5 3.5 Conversion factor: 8.58 ft³ = 1 lb 0.535m³ = 1 kg 36.
PAGE 4
Basic dimensions Note: This outline drawing is provided for general reference only and is not intended for use in design or installation. For more information, see Operators and Installation manuals or contact your distributor or dealer for assistance. Automatic transfer panel configurations Typical service entrance ATS model installation (100/200A) ©2015 Cummins Inc.
PAGE 5
100A RA Series Automatic Transfer Switch (ATS) Non-service entrance 200A RA Series Automatic Transfer Switch (ATS) Non-service entrance 100A and 200A RA Series Automatic Transfer Switch (ATS) Service entrance ©2015 Cummins Inc. | NAS-5775d-EN (4/15) power.cummins.
PAGE 6
Accessories  HMI211RS in-home display, including pre-configured 12” harness  HMI211 remote display, including pre-configured 12” harness  HMI220 remote display  Auxiliary output relays (2)  Auxiliary configurable signal inputs (8) and relay outputs (8)  Annunciator – RS485  Internet monitoring device – PowerCommand 500  Battery chargers – stand-alone, 12V  Enclosure Sound Level 1 to Sound Level 2 upgrade kit  Enclosure paint touch up kit  Base barrier – elevated generator set  Alternator heater