Blue Star Power Systems · Diesel Product Line (Perkins)
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Blue Star PD550-01
550 kW standby · Diesel · Liquid-cooled
550 kW Tier 2 diesel standby generator built by Blue Star Power Systems. Perkins 2506C-E15TAG4 six-cylinder engine with charge air cooling, Stamford HCI534E alternator, DSE DCP7310 controller.
The Blue Star PD550-01 is a 550-kilowatt EPA Tier 2 diesel standby generator powered by the Perkins 2506C-E15TAG4 — the highest-output calibration of the 15.2-liter, six-cylinder turbocharged and charge-air-cooled platform in Blue Star's lineup. The PD550-01 shares the 150×78 in structural steel footprint with the PD500-01, differing in engine calibration (TAG4 vs TAG3), alternator (HCI534E vs HCI534D), and 350 additional pounds.
Blue Star Power Systems (North Mankato, Minnesota) pairs the 2506C-E15TAG4 with a Stamford HCI534E alternator and DSE DCP7310 controller. At 9,875 lbs, the PD550-01 is operating the 2506C platform near its output ceiling. The deration altitude tightens significantly to 1,640 ft (500 m) — compared to 3,281 ft (1,000 m) for the PD500-01 — reflecting the higher-stress calibration of the TAG4. Deration: rated power is available to 1,640 ft (500 m) at 86°F (30°C).
The TAG4 calibration represents the peak output of the 2506C generator engine family in Blue Star's lineup. At 550 kWe standby, the engine is running at its rated maximum — reflected in the tighter altitude rating (1,640 ft vs 3,281 ft for the TAG3). Combustion air draw and ventilation airflow are identical between the PD500 and PD550 (both at 1,484 CFM and 30,600 CFM respectively), as both use the same 2506C-E15 radiator and cooling package. The heat radiated to ambient rises substantially (644,100 vs 589,500 BTU/hr), indicating higher thermal stress at the TAG4 calibration.
The PD550-01 at 550 kWe is operating the 2506C platform at its rated ceiling. The restrictive altitude limit (1,640 ft) must be verified at commissioning — sites that appeared to qualify on paper may encounter thermal issues in summer conditions. Annual full-load testing is essential. Confirm exhaust system component ratings for sustained 1,022°F operation. The HCI534E alternator is shared with the PD600-01 (480V configuration), so service familiarity carries across both models. Follow the Perkins 2500C generator series maintenance schedule.
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.
Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.
Estimate runtime on this tank
Estimated runtime
7.4 hours(0.3 days)
Fuel consumption ≈ 27.15 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.
Service intervals
Manufacturer-recommended intervals for the Blue Star PD550-01 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.
Oil & filter
Every 500 hours or 12 months
Coolant change
Every 6000 hours
Air filter
Every 1000 hours
Fuel filter
Every 500 hours
Major overhaul
≈ 20,000 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.
Component
Symptom
Typical hours
Severity
Turbocharger(s)
Major power loss, heavy exhaust smoke
12,000+
severe
Fuel quality / degradation
Injector fouling, hard starting
4,380+
moderate
Battery bank (24V)
Failed start, slow cranking
8,760+
minor
Frequently Asked Questions
What engine does the PD550-01 use?
The Perkins 2506C-E15TAG4 — a 15.2-liter, six-cylinder turbocharged and charge-air-cooled diesel and the highest-output calibration of the 2506C platform in Blue Star's lineup. The TAG4 produces 550 kWe standby, 50 kWe above the TAG3 (PD500-01) on the same engine architecture and footprint. It carries EPA Tier 2 certification for stationary emergency applications. Note the tighter altitude/temperature rating: rated power is available to 1,640 ft (500 m) at 86°F (30°C).
What controller does the PD550-01 use?
The DSE DCP7310 Digital Control Panel, with CAN Bus J1939 engine communication, digital metering, RS-485 interface, 8 programmable contact inputs, 10 contact outputs, and NFPA 110 Level 1 compatibility. The panel is cULus Listed and CE Approved with IP 65 ingress protection (with supplied gasket). A 24V battery system and 24V 5 Amp battery charger are standard.
How does the PD550-01 compare to the PD500-01 and PD600-01?
The PD500-01 (TAG3) and PD550-01 (TAG4) share the same 2506C-E15 engine platform and nearly identical 150×78 in footprint (97 vs 98 in OPU height). The PD550 weighs 350 lbs more (9,875 vs 9,525 lbs) and burns 35.2 gph vs 32.3 gph at full load. The key difference is the altitude deration: the PD550 is limited to 1,640 ft (500 m) vs 3,281 ft (1,000 m) for the PD500 — both at 86°F. The PD600-01 steps to the larger 2806C-E18 platform (18.1L) with a taller OPU enclosure.
What are the ventilation and thermal requirements for the PD550-01?
The PD550-01 requires 30,600 CFM of radiator cooling airflow — essentially the same as the PD500-01, since both use the 2506C-E15 engine and radiator configuration. Combustion air draw is 1,484 CFM. Heat rejected to the coolant circuit is 668,580 BTU/hr; heat radiated to ambient is 644,100 BTU/hr. Exhaust exits at 1,022°F at 4,240 CFM. For fuel planning: at full load (35.2 gph), a 1,000-gallon tank provides approximately 28 hours of runtime.
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