Overview
Himoinsa HS Stationary Range (7-50 kVA)
The HS series generator sets are compact, robust diesel units designed specifically for stationary emergency and standby power in commercial, industrial and residential applications. Built with high-quality materials and premium components, they feature Yanmar engines (developed exclusively for this range up to 50 kVA) that deliver reliable ESP performance.
Key features include a space-saving canopy with multiple access doors and removable panels for quick maintenance, an AC5 digital control panel with optional integrated automatic transfer switch (ATS), and dual cable entry points for simplified installation. External IP55-rated ATS options are available.
Main benefits:
Fast, low-cost maintenance that minimises downtime and operating costs.
Easy grid connection thanks to the built-in ATS version.
High reliability with competitive power output tailored for stationary use.
Straightforward installation and user-friendly operation in a compact design.
Ideal for supermarkets, hospitals, banks, small-to-medium industry, agriculture, water treatment and residential backup, the 7-50 kVA HS range provides dependable power with durability, accessibility and cost-effective performance for fixed installations.

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sIZE DIMENSIONS
Length (A):
1980mm
width (b):
750mm
Height (C):
1270mm
WEIGHT:
750kg
Generator Support Available
Installation Available
Servicing & Maintenance
Technical Support
Power Ratings (Typical 400/230 V Configuration)
PRP (Prime Power): 17.5–17.8 kVA / 14–14.3 kW
ESP (Standby/Emergency): 18.9–20 kVA / 15.2–16.3 kW
Voltage: 400/230 V (other voltages available)
Frequency: 50 Hz
Power factor: 0.8
Phases: 3
Note: Exact ratings vary slightly depending on the alternator brand (Stamford, Mecc Alte, or Himoinsa) and configuration.
Engine Specifications
Manufacturer/Model: Yanmar 4TNV88HSPU (or 4TNV88BIHR in some Stage V variants) – 4-cylinder, in-line
Type: 4-stroke diesel, direct injection, naturally aspirated
Speed: 1,500 rpm
Displacement: 2.19 L
Bore x Stroke: 88 x 90 mm
Cooling: Water-cooled (coolant) with pusher fan radiator
Governor: Mechanical
Fuel consumption (approx., standard engine):
100% PRP: 4.27 L/h
ESP: 5.02 L/h
75% PRP: 3.29 L/h
50% PRP: 2.40 L/h
Oil capacity: 7.4 L
Coolant capacity: 5.5 L
Lube oil: SAE 10W30 / API CD/CF
Electrical system: 12V with starter and battery charger alternator
Alternator Specifications (Common Variants)
Brands: Stamford (e.g., S0L2.G1), Mecc Alte (e.g., ECP28.M4C), or Himoinsa
Poles: 4
Excitation: Self-excited, brushless
Voltage regulator: Electronic AVR
Insulation: Class H
Protection: IP23
Connection: Star-series
Mounting: Single bearing with flexible disc coupling
Canopy / Soundproof Features (Standard on Enclosed Version)
Robust steel chassis with epoxy polyester powder coating.
Modular acoustic enclosure with soundproofing (foam + polyurethane film).
Noise level: ~67–69 dB(A) @ 7m (standard); optional lower (~65 dB(A)) with attenuation kit.
Bunded fuel tank (standard 115 L, options: 165/215/265/460 L) with level gauge.
Retention tray system.
Wide removable doors for easy maintenance (oil, water, filters accessible without full disassembly).
4 lifting points, anti-vibration mounts, forklift pockets.
External emergency stop.
Lower/side cable outlets with aluminum covers.
Autonomy: ~33–35 hours at 70–75% load (115 L tank).
Dimensions (Soundproof, approx.):
Length: 1,980 mm
Width: 750 mm
Height: 1,270 mm
Weight (with fluids): ~640 kg
Electrical & Control System
Control panel options: M7X (manual), CEM7/CEC7 (automatic) with digital display for voltage, current, frequency, power, engine parameters (temp, oil pressure, RPM, battery), and alarms.
2-wire auto start capability.
Adjustable earth leakage protection.
Battery charger and heater resistor (on auto panels).
4-pole circuit breaker.
Protections: Over/under speed, high/low temp & pressure, low fuel, battery issues, etc.

