Description
Pramac GRW115P – 110 kVA Rental Diesel Generator
Perkins power. Leroy Somer output. 530 litre tank. Rental tough.
The GRW115P diesel generator delivers 110 kVA / 88 kW emergency standby and 100 kVA / 80 kW prime power from a Perkins 1104D-E44TAG2, a four cylinder, 4.4 litre, turbocharged, water-cooled Stage IIIA engine running at 1500 RPM with electronic governor. Output is delivered through a brushless Leroy Somer LSA 44.3 S5 alternator at 400/230 V, 50 Hz, three phase, 0.8 power factor, with class H insulation, IP23 protection, Protection System 2 winding treatment, 12 winding leads and electronic voltage regulation held inside 1%. Maximum current is 159 A. The set is switchable to 60 Hz for 1800 RPM operation.
The canopy is built from modular panels of zinced metal sheet tested to more than 1000 hours of salt spray, with gasketed access doors and lockable handles on each side, washable fireproof soundproofing and an integrated residential exhaust silencer with rain flap, giving 62 dB(A) at 7 metres and a guaranteed sound power level of 91 dB(A). The heavy-duty powder coated base frame is fully bunded to retain 110% of the set fluids and carries integrated fork pockets, a pull bar and a single lifting point with rung and handle on both sides. The unit measures 3460 x 1200 x 1950 mm and weighs 2460 kg. A Canopy Extra Silent version with an additional roof soundproofing module is available at 59 dB(A) at 7 metres, measuring 3460 x 1200 x 2545 mm and 2616 kg.
The integrated 530 litre metal fuel tank runs 26.97 hours at 75% prime power and 23.65 hours at full load, with a refilling point on each side and a six way fuel valve for connection to an external tank. The ACP automatic control panel carries the AMF function, full genset monitoring and protection, a detailed event log with time and date, emergency push button, analogue fuel level meter and mechanical hour counter, differential protection with internal switch, battery charger, a two wire remote start/stop facility, an auxiliary supply plug and a four pole modular circuit breaker behind a safety switch that trips the breaker if the power section door is opened. An MPP modular parallel panel with 7 inch TFT display and motorised MCCB is available for running up to 32 sets in parallel.
GRW115P at a glance
- 110 kVA / 88 kW emergency standby, 100 kVA / 80 kW prime power
- Perkins 1104D-E44TAG2, 4 cylinder in line, 4399 cm³, turbocharged, water cooled, Stage IIIA, 1500 RPM, electronic governor, 50/60 Hz switchable
- Leroy Somer LSA 44.3 S5 brushless alternator, 4 pole, 12 leads, class H, IP23, Protection System 2
- 400/230 V, 50 Hz, three phase, 0.8 power factor, maximum current 159 A
- Fuel consumption 19.65 L/h at 75% PRP, 22.41 L/h at 100% PRP
- 530 L integrated metal fuel tank, runtime 26.97 h at 75% PRP, 23.65 h at 100% PRP
- Noise: 62 dB(A) @ 7 m, 73 dB(A) @ 1 m, guaranteed LWA 91 dB(A)
- Control panel: ACP automatic mains failure or MPP modular parallel, specify when ordering
- 12 V electric start, 8.4 L oil capacity, 17 L coolant capacity
- Canopy 3460 x 1200 x 1950 mm, 2460 kg
Standard equipment includes a battery isolator (MBS), earth rod with cable, document holder, lube oil drain pump, six way fuel valve for external tank use, fuel refilling points on both sides, a leak proof tray with detector sensor, and plastic bumpers to protect the canopy in transport. Electrical options include internal canopy lighting (ICL), control section lighting (CLS), DSE2157 output expansion, DSE890 MKII 4G remote gateway (RGW2), engine analogue gauges (EAG), insulation monitoring device (IMD), socket kit (SPK), Powerlock outlets (PWL) and bus bar arrangement (ERDF). Mechanical options include pre-heating (PHS), water separator filter (WSP), heavy-duty air filter (HDF), hot parts protection (HPP), ATEX certified exhaust spark arrestor (ESA), air shut-off valve (ASV), galvanised sliding skid (GGS), baseframe bumpers (BFB) and quick fit fuel connectors (QFC). Site trailer (STR), road trailer (RTR / RTR-B) and load transfer switch (LTS) are available as accessories.
EC mark compliant to 2006/42/CE, 2014/30/UE, 2014/35/UE, 2000/14/EC, 97/68/EC and 2011/65 RoHS, built to EN 12100, EN 13857 and EN 60204 under ISO 9001, with G2 class load acceptance to ISO 8528-5.
| POWER RATING | ||
| EMERGENCY STANDBY POWER ESP | kVA | 110 |
| EMERGENCY STANDBY POWER ESP | kW | 88 |
| PRIME POWER PRP | kVA | 100 |
| PRIME POWER PRP | kW | 80 |
| MAXIMUM CURRENT | A | 159 |
| VOLTAGE | V | 400/230 |
| FREQUENCY | Hz | 50 |
| POWER FACTOR | cos φ | 0.8 |
| PHASES | 3 | |
| FUEL | Diesel | |
| ENGINE SPECIFICATIONS | ||
| EXHAUST EMISSION LEVEL | Stage IIIA | |
| ENGINE BRAND | Perkins | |
| MODEL | 1104D-E44TAG2 | |
| NR. OF CYLINDERS AND DISPOSITION | 4 in line | |
| DISPLACEMENT | cm³ | 4399 |
| ASPIRATION | Turbocharged | |
| ENGINE COOLING SYSTEM | Water | |
| SPEED GOVERNOR | Electronic | |
| OPERATION SPEED NOMINAL | RPM | 1500 |
| OIL CAPACITY | l | 8.4 |
| COOLANT CAPACITY | l | 17 |
| STARTING SYSTEM | Electric | |
| ELECTRIC CIRCUIT | V | 12 |
| FUEL | Diesel | |
| ALTERNATOR SPECIFICATIONS | ||
| ALTERNATOR BRAND | Leroy Somer | |
| MODEL | LSA 44.3 S5 | |
| TYPE | Brushless | |
| POLES | 4 | |
| CLASS | H | |
| IP PROTECTION | 23 | |
| VOLTAGE REGULATION SYSTEM | Electronic | |
| VOLTAGE TOLERANCE | % | 1 |
| FUEL TANK AND AUTONOMY | ||
| FUEL TANK CAPACITY (INTERNAL, METAL) | l | 530 |
| FUEL CONSUMPTION @ 75% PRP | l/h | 19.65 |
| RUNNING TIME @ 75% PRP | h | 26.97 |
| FUEL CONSUMPTION @ 100% PRP | l/h | 22.41 |
| RUNNING TIME @ 100% PRP | h | 23.65 |
| DIMENSIONS, WEIGHT AND NOISE | ||
| CANOPY DIMENSIONS (L X W X H) | mm | 3460 x 1200 x 1950 |
| CANOPY WEIGHT | kg | 2460 |
| CANOPY GUARANTEED NOISE LEVEL LWA | dB(A) | 91 |
| CANOPY NOISE PRESSURE LEVEL @ 1 M | dB(A) | 73 |
| CANOPY NOISE PRESSURE LEVEL @ 7 M | dB(A) | 62 |
| CANOPY EXTRA SILENT DIMENSIONS (L X W X H) | mm | 3460 x 1200 x 2545 |
| CANOPY EXTRA SILENT WEIGHT | kg | 2616 |
| CANOPY EXTRA SILENT GUARANTEED NOISE LEVEL LWA | dB(A) | 88 |
| CANOPY EXTRA SILENT NOISE PRESSURE LEVEL @ 1 M | dB(A) | 69 |
| CANOPY EXTRA SILENT NOISE PRESSURE LEVEL @ 7 M | dB(A) | 59 |
GRW Series – Rental Diesel Generators
Low Noise. Heavy-Duty Build. Engineered for Long-Duration Performance.
The GRW Series is a robust family of rental-grade diesel generators developed for sites that require low noise, extended running autonomy and dependable performance in all conditions. Purpose-built for rental fleets, construction, utilities, mining, events and mission-critical environments, the GRW range delivers reliable three phase power across a broad output spectrum.
With corrosion-resistant zinced steel canopies tested to 1000 hours of salt spray and fully bunded heavy-duty baseframes that retain 110% of all fluids, every GRW generator is engineered to withstand aggressive environments, harsh weather and long operating cycles. Large integrated fuel tanks with a refilling point on each side deliver long uninterrupted running, and a six way fuel valve allows connection to an external tank for even longer autonomy.
Key Features
- Perkins and Volvo engine options with Leroy Somer brushless alternators
- Dual frequency 50/60 Hz capability with optional voltage selector switches
- Standard and Extra Silent acoustic canopies with integrated residential silencer and rain flap
- Fully bunded base frame with integrated fork pockets and pull bar
- Single lifting point, battery isolator (MBS), earth rod, document holder and lube oil drain pump as standard
- ACP automatic or MPP modular parallel control panels, with site and road trailer options
Frequently Asked Questions
What is included as standard on a GRW rental generator?
Every GRW set ships with a heavy-duty powder coated base frame bunded to 110% of its fluids, fork pockets and a pull bar, a single lifting point with rung and handle, a battery isolator (MBS), an earth rod with cable, a document holder, a lube oil drain pump, a six way fuel valve for external tank use, double fuel refilling points and a leak proof tray with detector sensor.
Can it be trailer mounted?
Yes. A site trailer (STR), road trailer (RTR) and road trailer with height adjustable drawbar (RTR-B) are available as accessories, along with a load transfer switch (LTS) for the ACP panel.
How long will the GRW115P run on a full tank?
The 530 litre integrated tank gives 26.97 hours at 75% prime power or 23.65 hours at full load, using 19.65 and 22.41 litres per hour respectively. The six way fuel valve allows an external tank to be connected for longer runs.
Is an automatic transfer switch (ATS) included?
No. An automatic transfer switch is not included unless it is listed in the product description above. Ozwide Power can supply a correctly rated ATS with the generator, so ask for a package price when you enquire.






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