HTX Motor

31.3kVA Three-Phase Water-Cooled Silent Diesel Generator Set

Diesel Generators · Water-Cooled Silent

31.3 kVA

31.3kVA prime (34.4kVA standby) water-cooled silent diesel generator, 37.5kVA at 60 Hz. Y4102D engine with brushless AVR alternator, 62 (50 Hz) / 64 (60 Hz) dB(A) at 7 m. Continuous-duty standby power.

The HTX-G31K-WS3 is a 31.3kVA prime / 34.4kVA standby water-cooled silent diesel generator set — a continuous-duty machine, not a portable. At 60 Hz it delivers 37.5kVA prime / 41.3kVA standby, which is the configuration most of Latin America runs. The water-cooled Y4102D engine (Four-cylinder in-line, four-stroke, direct injection, water-cooled, 102 x 118 mm bore x stroke, 3.875 L displacement, 18:1 compression) turns at a steady 1500/1800 rpm, the speed a genset has to hold to work all day without cooking itself. Fuel burn is 235 g/kW.h at the engine, roughly 8.94 L/h at 100% load (50 Hz) / 10.05 L/h (60 Hz). It drives a SC184HS brushless self-excited alternator with AVR voltage regulation, four poles, class H insulation — stable voltage under switching loads such as motors, pumps and compressors. The sound-attenuated canopy holds it to 62 (50 Hz) / 64 (60 Hz) dB(A) measured at 7 m, low enough for hotels, clinics, telecom sites and residential areas. 24V electric start with a 12V 120Ah x 2 battery and an intelligent controller. Coolant capacity 7.2 L, oil capacity 13 L. Fuel tank capacity, canopy dimensions and net weight are not listed in the factory's current data sheet for this model — we confirm them with the plant on every quote rather than publishing a number we cannot stand behind.

Technical Specifications

Prime power
31.3kVA
Rated voltage
400/230V
Prime power
31.3 kVA / 25 kW
Prime power (60 Hz)
37.5 kVA / 30 kW
Standby power
34.4 kVA / 27.5 kW
Standby power (60 Hz)
41.3 kVA / 33 kW
Rated voltage (60 Hz)
416/240 V
Rated current
45.1 (50 Hz) / 52 (60 Hz) A
Phase / Frequency
Three-phase, 50/60Hz, 1500/1800rpm
Power factor
0.8 (lagging)
Alternator type
SC184HS brushless self-excited with AVR, 4-pole, class H insulation
Engine model
Y4102D
Engine configuration
Four-cylinder in-line, four-stroke, direct injection, water-cooled
Engine bore x stroke
102 x 118 mm
Engine displacement
3.875 L
Compression ratio
18:1
Fuel consumption
235 g/kW.h
Oil capacity
13 L
Coolant capacity
7.2 L
Start mode
24V electric start
Battery capacity
12V 120Ah x 2
Controller
Intelligent controller
Noise level @ 7 m
62 (50 Hz) / 64 (60 Hz) dB(A)
Frame type
Sound-attenuated canopy

Key Features

  • Water-cooled Y4102D engine at 1500/1800 rpm — built for continuous duty, not standby-only
  • SC184HS brushless self-excited alternator, AVR regulated, 4-pole, class H insulation
  • 62 (50 Hz) / 64 (60 Hz) dB(A) at 7 m from the sound-attenuated canopy
  • 31.3kVA at 50 Hz / 37.5kVA at 60 Hz — both frequencies available
  • Low engine fuel consumption, 235 g/kW.h
  • 24V electric start, 12V 120Ah x 2 battery, intelligent controller
  • Four-cylinder in-line, four-stroke, direct injection, water-cooled
  • Coolant 7.2 L, engine oil 13 L

Applications

Ordering & Export

OEM / ODM
Private label & custom configuration
Sample & trial orders
Welcome, flexible quantities
Export packaging
Export-grade, seaworthy cases / pallets
Quality inspection
Pre-shipment & third-party (SGS / BV) welcome
Engineering support
Model selection & sizing assistance
Worldwide export
Multi-region shipping experience

We'll send pricing, lead time and export terms tailored to your order.

Related Products

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