Blue Star Power Systems · Gaseous Product Line (PSI 11.1L)

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Blue Star NG200-01P

200 kW standby / 175 kW prime · Natural Gas / LPG · Liquid-cooled

175 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 11.1L inline-six, DSE DCP7310 controller, 208-600V, continuous prime duty.

Standby power
200 kW / 175 kW prime
Voltage options
120/240V, 120/208V, 240V, 277/480V, 347/600V
Frequency / Phase
60 Hz · 1/3-phase
Engine
PSI 11.1L · 11.1L
EPA / Emissions
EPA Stationary Spark Ignition
Alternator
Stamford UCI274H
commercialmedium-commerciallarge-commercialhotelschoolschool-campushospital-non-criticalmulti-familymulti-family-largelight-industrial

Overview#

The Blue Star NG200-01P is the prime-rated variant of the NG200-01, delivering 175 kWe continuously on natural gas (115 kWe on LP). It uses the identical PSI 11.1L inline-six platform and physical enclosure as the standby NG200-01, with the prime rating providing a warranty-backed assurance of continuous duty at reduced electrical output.

Standby vs. prime on the 11.1L platform#

NG200-01 (Standby)NG200-01P (Prime)
Output NG200 kWe175 kWe
Output LP130 kWe115 kWe
Warranty2 yr / 2,000 hr1 yr / 1,500 hr
NG fuel @ 100%2,076 ft³/hr1,879 ft³/hr
Temp rise125°C standby105°C prime

Both units share the same OPU footprint (120 × 66 × 80 in, 6,550 lbs), DSE DCP7310 controller, and alternator models.

When to spec the NG200-01P#

Alternator configurations#

All five voltage configurations carry 105°C prime temperature rise:

VoltagePhaseAlternator
120/240V1Stamford S4L1D-E41
120/208V3Stamford UCDI274J1
240V3Stamford UCDI274J1
277/480V3Stamford UCI274H
347/600V3Stamford UCI274H

Our service experience#

Service intervals are identical to the NG200-01. Prime-duty operation means higher annual hour accumulation — budget for more frequent spark plug and ignition coil replacements relative to a standby unit. The 2-inch NPT fuel connection and 11 in. water column pressure requirement are the same as the standby variant.

Engineering specifications

Physical

Length
120 in
Width
66 in
Height
80 in
Dry weight
6,550 lb

Acoustic

Sound @ 7m, full load
84 dBA
Enclosure
Open

Fuel system & runtime

NG required pressure
11 in WC

Thermal & ventilation

Heat to coolant
664,260 BTU/hr
Heat radiated
209,880 BTU/hr
Exhaust flow
1,425 CFM
Exhaust temp
1382 °F
Combustion air
448 CFM
Ventilation air
18,000 CFM

Documents & downloads

Spec sheets & manuals

Request a quote

Get pricing & lead time on the Blue Star NG200-01P

Tell us about the application — kW, voltage, application, install timeline — and we'll respond within one business day with budgetary pricing, lead time, and any sizing notes.

Estimate runtime for the Blue Star NG200-01P

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

Estimate runtime on this tank

Fuel demand at 75% load

2,100,000 BTU/hr2100.0 cf/min @ 1,000 BTU/cf

On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.

Service intervals

Manufacturer-recommended intervals for the Blue Star NG200-01P under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 250 hours or 12 months
Coolant change
Every 4000 hours
Air filter
Every 1000 hours
Spark plugs
Every 1500 hours
Major overhaul
15,000 hours
Load bank test
Every 12 months

Common failure modes

What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.

ComponentSymptomTypical hoursSeverity
TurbochargerLoss of power, excessive smoke under load12,000+moderate
Spark plugs / ignitionMisfire at load, rough running1,500+minor
Charge air coolerReduced power output, elevated intake temps10,000+moderate
BatteryFailed to start during outage8,760+minor

Frequently Asked Questions

What is the prime rating of the NG200-01P?
The Blue Star NG200-01P is rated 175 kWe prime on natural gas (115 kWe on LP) at 60 Hz / 1800 RPM. The unit is backed by a 1-year / 1,500-hour prime warranty. The standby-rated counterpart is the NG200-01 at 200 kWe.
What engine powers the NG200-01P?
The PSI 11.1L inline-six — 11.1 liters (673 cu in), turbocharged-aftercooled, 10.5:1 compression, rated 315 bHp (235 kWm) at 1800 RPM. The same engine platform powers the standby NG200-01; the prime rating reflects a conservative electrical output for continuous-duty reliability.
How does fuel consumption compare to the standby NG200-01?
At 100% prime load (175 kW), the NG200-01P consumes 1,879 ft³/hr of natural gas vs. 2,076 ft³/hr for the standby NG200-01 at 200 kW. Per-kW consumption is comparable — the difference reflects the lower output level of the prime variant.
What alternators does the NG200-01P use?
The NG200-01P uses voltage-dependent alternator selection: Stamford S4L1D-E41 for 240V single-phase; Stamford UCDI274J1 for 208V and 240V three-phase; Stamford UCI274H for 480V and 600V three-phase. All are 105°C prime temperature rise, single-bearing brushless.

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