
The EY-R50F STAGE 0 generator from the RENTAL line perfectly meets the needs of construction sites and rental companies, offering an optimal balance of portability and power. Designed for professional applications, it combines durability with ease of transport, ensuring a reliable power supply even under challenging conditions.
Equipped with advanced safety features and a customizable electrical panel, it is ideal for powering machinery and equipment, ensuring stable performance even under high and continuous loads. Reliable and versatile, this generator is the perfect choice for those seeking a unit that offers both power and safety.
KEY SPECIFICATIONS
Voltage 400V + N - Three-phase
1,500 rpm
FPT NEF45 AM2 Engine
Electric start
EU STAGE 0 Emissions
TECHNICAL SPECIFICATIONS
CONTINUOUS POWER:
50 kVA - 40 kW
STANDBY POWER:
55 kVA - 44 kW
NOISE LEVEL:
68 dB(A) at 7 meters ± 3
RPM:
1500 rpm
FREQUENCY:
50 Hz
VOLTAGE:
400 V + N
AMPERAGE:
72 A
ENGINE:
FPT NEF45 AM2
EMISSIONS:
EU STAGE 0
COOLING:
Water
ENGINE DISPLACEMENT:
4,500 cc
FUEL:
Diesel
FUEL CONS. 75%
9.3 liters/hour
TANK:
315 liters
ALTERNATOR:
Linz
TYPE:
Brushless
VOLTAGE REGULATION:
AVR
DIMENSIONS
LENGTH
2550 mm
WIDTH
1037 mm
HEIGHT
1605 mm
WEIGHT
N/A
Outdoor soundproof enclosure made of steel and coated with epoxy powder paint to ensure optimal corrosion resistance. The enclosure is RAL6017 green, while the roof, base, and front panel are RAL7012 gray. It is equipped with sound-absorbing material that provides high acoustic insulation. Access for routine and non-routine maintenance is facilitated by sturdy, lockable access doors. Inside the enclosure is a residential-grade muffler with a noise reduction of 35 dB(A). The central lifting hook is certified. Fresh air intake and hot air exhaust occur vertically through special sound-insulating ducts.
PRODUCT SPECIFICATIONS

ELECTRICAL PANEL
AUTOMATIC
The EY-R50F model’s electrical panel is designed to ensure advanced and safe control. At the heart of the system is the ComAp AMF25 control unit, featuring an ON/OFF switch and protected by a door with a viewing window to ensure visibility. It is equipped with a built-in battery charger and a periodic test function to monitor the system, as well as connections for grid connection.
The enclosure, housed in a sturdy IP44-rated case, is designed to withstand external elements. The panel is equipped with a set of 8 configurable outlets: 4 5-pole 400V outlets, one 3-pole 230V 16A outlet, and 3 230V Schuko outlets, each protected by a circuit breaker and a main ground fault circuit interrupter.
Additional features include a USB port and a 230V 16A CEE input plug to power the battery and, if necessary, the heater. Circuit breakers provide protection for the auxiliary circuits, while an emergency stop button and a grounding terminal ensure additional safety.
An electronic float monitor tracks the diesel fuel level, while the alarm system signals anomalies such as voltage and frequency fluctuations, low oil pressure, high water temperature, alternator failures, and low fuel levels. Finally, there are digital gauges for oil pressure and engine temperature.

ELECTRICAL PANEL
AUTOMATIC
The EY-R50F model’s electrical panel is designed to ensure advanced and safe control. At the heart of the system is the ComAp AMF25 control unit, featuring an ON/OFF switch and protected by a door with a viewing window to ensure visibility. It is equipped with a built-in battery charger and a periodic test function to monitor the system, as well as connections for grid connection.
The enclosure, housed in a sturdy IP44-rated case, is designed to withstand external elements. The panel is equipped with a set of 8 configurable outlets: 4 5-pole 400V outlets, one 3-pole 230V 16A outlet, and 3 230V Schuko outlets, each protected by a circuit breaker and a main ground fault circuit interrupter.
Additional features include a USB port and a 230V 16A CEE input plug to power the battery and, if necessary, the heater. Circuit breakers provide protection for the auxiliary circuits, while an emergency stop button and a grounding terminal ensure additional safety.
An electronic float monitor tracks the diesel fuel level, while the alarm system signals anomalies such as voltage and frequency fluctuations, low oil pressure, high water temperature, alternator failures, and low fuel levels. Finally, there are digital gauges for oil pressure and engine temperature.
AVAILABLE OPTIONS
All Energy generating sets can be customized based on your needs and intended use. Discover the optional features available for this model!
STANDARD CONFIGURATION
All Energy generating sets come standard with a set of features. Discover the accessories included with this model!

External diesel fuel filler with lockable cap.

Three-way valve for connecting the fuel tank’s supply and return lines.

Diesel drain plug, 50 mm diameter.

Handling with anti-tip forklift forks.

Shock-absorbing rubber pads positioned to protect the base.

Battery Disconnector.

Access hatch for refrigerant fluid filling.

Shock-resistant door stop.

Document holder.

Radiator drain tank.

Side doors for inspection and maintenance, made of 2mm-thick sheet metal with Class 1-certified sound-absorbing material.

Solid 3mm-thick sheet metal base, fully welded with a closed bottom to collect liquid leaks. Tubular frame welded to the short sides for towing the generator to the job site.
CASE HISTORY
ENERGY recommends

Energy’s water-cooled, 1,500 rpm rental generating sets offer ideal solutions for construction sites and mobile applications.
The generating sets for the construction sector in Energy’s RENTAL range have power ratings from 10 to 330 kVA and are robust three-phase diesel units compliant with STAGE V regulations, ideal for construction sites and mobile rental applications. Designed for continuous use in harsh conditions, they include advanced safety and convenience features, such as customizable electrical panels and anti-tip systems.

ENERGY IS SYNONYMOUS WITH:
Quality and reliability
We are a specialized and motivated team that manufactures and distributes generators on the international market, guaranteeing quality, reliability, and professionalism.
Innovation and Creativity
We look to the future, keeping creativity and solutions in step with the times
Research and Development
We continuously invest in research and innovation, drawing on our staff’s thirty years of experience to offer high-quality standard and custom products.
Tradition and Growth
With strong roots in a long history of family entrepreneurship, we have quickly established ourselves in the international market. From our headquarters in Montebello Vicentino, we sell our products in more than 120 countries worldwide.























