ZHONGCHAI · Cummins

ZC-30DC37.5 kVADiesel generator

Diesel generator · Powered by Cummins

ZC-30DC is a 37.5 kVA prime-power diesel generator set with a sound-attenuated canopy, powered by a Cummins 4BT3.9-G2 engine.

The published electrical configuration is 400 V, 50 Hz, three-phase. Listed components — alternator: ZC-30E4; controller: SmartGen.

Prime power37.5 kVA
Engine model4BT3.9-G2
Electrical specification400 V · 50 HzPhases: 3

01 / ZC-30DC

Technical specifications

Review the model, power rating and electrical requirements together.

Generator model
ZC-30DC
Prime power
37.5 kVA
Engine brand
Cummins
Engine model
4BT3.9-G2
Alternator model
ZC-30E4
Controller brand
SmartGen
Voltage
400 V
Frequency
50 Hz
Phases
3
Enclosure
Silent canopy
Prime power
30 kW
Power factor
0.8

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

ZHONGCHAI · ZC-30DC

Detailed technical specifications

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

Engine specifications
Engine model
4BT3.9-G2
Cylinders
4
Bore × stroke
102 × 120 mm
Displacement
3.9 L
Compression ratio
16.5:1
Engine oil capacity
11 L
Coolant capacity
24 L
Starting voltage (DC)
24 V
Alternator specifications
Alternator model
ZC-30E4
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
37.5 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
49.1 A
Standby power
33 kW
Standby apparent power
41.3 kVA
Prime power
30 kW
Prime apparent power
37.5 kVA
Electrical ratings by voltage - 415/240 V
Voltage
415/240 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
52.1 A
Standby power
33 kW
Standby apparent power
41.3 kVA
Prime power
30 kW
Prime apparent power
37.5 kVA
Electrical ratings by voltage - 400/230 V
Voltage
400/230 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
54.2 A
Standby power
33 kW
Standby apparent power
41.3 kVA
Prime power
30 kW
Prime apparent power
37.5 kVA
Electrical ratings by voltage - 380/220 V
Voltage
380/220 V
Frequency
50 Hz
Phases
3
Power factor
0.8
Rated current
56.9 A
Standby power
33 kW
Standby apparent power
41.3 kVA
Prime power
30 kW
Prime apparent power
37.5 kVA
Dimensions and weight - Sound-attenuated configuration
Length
2350 mm
Width
1000 mm
Height
1250 mm
Weight
1080 kg
Dimensions and weight - Open configuration
Length
1800 mm
Width
730 mm
Height
1290 mm
Weight
830 kg

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

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-30DC Prime power: 37.5 kVA Engine model: 4BT3.9-G2 Alternator: ZC-30E4 Controller: SmartGen Voltage: 400 V Frequency: 50 Hz Phases: 3

02 / A related documented order

Documented customer orders

Matched by the published engine brand and rated output, and by model where recorded. This catalogue reference does not establish that every component matches the supplied unit.

37.5 kVA Cummins silent generator - control side cover
Kenya · Dispatched

37.5 kVA Diesel Generator with Cummins Engine: Kenya Order

A 37.5 kVA diesel generator with a Cummins engine and sound-attenuated enclosure: built-in ATS confirmation, packaging and handover to the customer’s freight forwarder in Guangzhou on 8 December 2025.

View details →

The record covers the stages shown here. It does not establish receipt, installation or operating performance at the destination. Confirm the specification, test details and service scope for your own order.

03 / Before you order

Before you order

Does it match your loads?

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What is included in the quote?

Confirm the generator, ATS, packing, transport and inspection records. Agree warranty and delivery responsibilities in writing.

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-24DC · 30 kVA →

Prime power
30 kVA
Engine model
4B3.9-G12
Electrical configuration
400 V · 50 Hz · Phases: 3

ZC-45DC · 56.3 kVA →

Prime power
56.3 kVA
Engine model
4BTA3.9-G2
Electrical configuration
400 V · 50 Hz · Phases: 3

Selected model · ZC-30DC

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