ZHONGCHAI · Cummins

ZC-250C1312.5 kVADiesel generator

Diesel generator · Powered by Cummins

ZC-250C1 is a 312.5 kVA prime-power diesel generator set with a sound-attenuated canopy, powered by a Cummins NTA855-G1B engine.

The published electrical configuration is 400 V, 50 Hz, three-phase. Listed components — alternator: ZC-250E4.

Prime power312.5 kVA
Engine modelNTA855-G1B
Electrical specification400 V · 50 HzPhases: 3

01 / ZC-250C1

Technical specifications

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Generator model
ZC-250C1
Prime power
312.5 kVA
Engine brand
Cummins
Engine model
NTA855-G1B
Alternator model
ZC-250E4
Voltage
400 V
Frequency
50 Hz
Phases
3
Enclosure
Silent canopy
Prime power
250 kW
Power factor
0.8

Prime power is stated in kVA; do not treat it as standby power or kW.

ZHONGCHAI · ZC-250C1

Detailed technical specifications

Review the engine, alternator, electrical ratings and configuration dimensions below.

Engine specifications
Engine model
NTA855-G1B
Cylinders
6
Cylinder arrangement
In-line
Bore × stroke
140 × 152 mm
Displacement
14 L
Compression ratio
14:1
Engine oil capacity
38.6 L
Coolant capacity
85 L
Starting voltage (DC)
24 V
Alternator specifications
Alternator model
ZC-250E4
Phases
3
Connection
Three-phase, 4-wire, star (Y)
Power factor
0.8
Protection class
IP23
Excitation
Brushless
Insulation / temperature-rise class
H/H
Telephone influence factor (TIF)
<50
Telephone harmonic factor
<2%
Alternator rated capacity
312.5 kVA
Voltage
400 V
Electrical ratings by voltage - 440/254 V
Voltage
440/254 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
409 A
Standby power
275 kW
Standby apparent power
344 kVA
Prime power
250 kW
Prime apparent power
312.5 kVA
Electrical ratings by voltage - 415/240 V
Voltage
415/240 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
434 A
Standby power
275 kW
Standby apparent power
344 kVA
Prime power
250 kW
Prime apparent power
312.5 kVA
Electrical ratings by voltage - 320/230 V
Voltage
320/230 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Standby power
275 kW
Standby apparent power
344 kVA
Prime power
250 kW
Prime apparent power
312.5 kVA
Electrical ratings by voltage - 380/220 V
Voltage
380/220 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
474 A
Standby power
275 kW
Standby apparent power
344 kVA
Prime power
250 kW
Prime apparent power
312.5 kVA
Dimensions and weight - Sound-attenuated configuration
Length
3900 mm
Width
1350 mm
Height
2000 mm
Weight
3350 kg

Unpacked reference dimensions and weight; confirm packing dimensions and transport weight separately.

Current values requiring confirmation are not published.

Configuration reference. Confirm the final equipment, duty rating, dimensions and weight in the agreed order specification. Do not apply these 50 Hz ratings directly to 60 Hz configurations.

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Product information
Engine brand: Cummins Model: ZC-250C1 Prime power: 312.5 kVA Engine model: NTA855-G1B Alternator: ZC-250E4 Voltage: 400 V Frequency: 50 Hz Phases: 3

02 / Before you order

Before you order

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Selection, shipping and after-sales guides

Cummins

Compare nearby power ratings

These published models use the same engine brand. Compare the prime rating, engine and electrical configuration; a nearby kVA value does not establish suitability for your loads.

ZC-220DC · 275 kVA →

Prime power
275 kVA
Engine model
6LTAA9.5-G3
Electrical configuration
400 V · 50 Hz · Phases: 3

ZC-260DC · 325 kVA →

Prime power
325 kVA
Engine model
6LTAA9.5-G1
Electrical configuration
400 V · 50 Hz · Phases: 3

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