PR11K-SAE Diesel Generator

1. Overview:

Model: PR11K-SAE
11 kVA Diesel Generator, Sound-proof (RS) type
Kubota-powered, 50 Hz 1500 rpm, 3-phase / 5-wiring
Fully enclosed canopy with base frame, forklift pockets and control cabinet
Suitable for outdoor or well-ventilated indoor use

2. Standards & ConditionsL:
Design Standards

Conformité Européenne (CE)
ISO 8528-5:2005
GB/T 2820.5-2009
AS 3000-2018
AS 3010-2017

Environmental Operating Conditions

Ambient temperature: –25 °C to 50 °C (coolant heater required below 5 °C)
Humidity: Less than 90 %
Altitude: Below 1 000 m above sea level

Factory Inspection

Protection devices working test
Starting ability at normal temperature
50 % rated power load capability
Voltage deviation and speed variation at 0 %, 25 %, 50 %, 75 %, 100 % and 110 % load

Painting

Manufacturer’s standard process and colours (customer selectable options available)
Powder-coated canopy

3. General Features:

Kubota D1105-BG engine
Close-coupled Leroy Somer LSA40VS1 alternator
Control module: Deep Sea Electronics DSE 4520 MKII (replaces original PLC-920)
Main circuit breaker: 16 A
Mechanical speed governor
Self-excited excitation system with R220 AVR
Key switch and emergency stop switch
ATS receptacle
3-phase and 1-phase convenience receptacles
1 × 12 V / 72 Ah sealed maintenance-free battery with lockable isolator
50 °C radiator
Oil pump on engine
Steel base frame with forklift slots and vibration isolators
Dry-type air filter
100 L base fuel tank (approx. 28.5 hours runtime)
Fuel tank drain points
Operation Manual / Specifications supplied

4. General Technical Data:

Structure type: RS
Dry weight: 649 kg
Noise level 7 m: 64.7 dBA
Dimensions (L × W × H): 1 782 × 750 × 1 209 mm
Standby Power: 11 kVA / 9 kW
Prime Power: 10 kVA / 8 kW

Voltage / Current (Prime)

380 V – 15.2 A
400 V – 14.4 A
415 V – 13.9 A
440 V – 13.1 A

Fuel Consumption (50 Hz)

50 % load: 1.8 L/h
75 % load: 2.9 L/h
100 % load: 3.5 L/h
110 % load: 3.9 L/h

5. Diesel Engine:

Manufacturer: Kubota
Model: D1105-BG
Dimensions: 549.3 × 398.0 × 604.7 mm
Dry weight: 93 kg
Cylinders: 3
Bore × Stroke: 78 mm × 78.4 mm
Displacement: 1.123 L
Compression ratio: 22
Injection: Direct
Intake: Naturally aspirated (1.96 kPa resistance)
Cooling: Water-cooled with pusher fan
Battery voltage: 12 V
Fuel: No. 2-D (ASTM D975)
Oil: Better than API CD class (5.1 L capacity)
Coolant: Glycol mixture (6.4 L capacity)
Exhaust back pressure: ? 7.07 kPa
Standby power: 9.5 kW
Prime power: 8.4 kW
Fuel consumption at 100 % load: 3.5 L/h

6. Alternator:

Manufacturer: Leroy Somer
Model: LSA40VS1
Exciter: Brushless
Cooling fan: Synthetic plastic
Windings: 100 % copper
Insulation class: H
Winding pitch: 2/3
Terminals: 12
Protection: IP23
Altitude rating: ? 1 000 m
Overspeed: 2 250 rpm
Air flow: 0.11 m³/s (50 Hz) / 0.135 m³/s (60 Hz)
Voltage regulation: ± 0.5 %
Total harmonic distortion: < 1.5 % (no load) / < 5 % (on load)
Telephone interference: THF < 2 %; TIF < 50

7. Control System – DSE 4520 MKII:
Role

Compact Auto Mains Failure (AMF) control module
Also configurable as Auto Start module

Key Capabilities

3-phase generator and mains sensing
Power monitoring (kW, kVA, kVAr, pf) and accumulated energy (kWh, kVAh, kVArh)
Current monitoring and protection
Configurable fuel and start outputs
4 configurable DC outputs
3 configurable analogue/digital inputs
4 configurable digital inputs
Staged loading outputs
3 engine maintenance alarms
Engine speed protection, hours counter, pre-heat and run-time scheduler
Real-time clock and configurable event log
Fully configurable via front fascia or USB/PC software
Power-save, sleep and deep-sleep modes
J1939-75 / CAN support
Alternator frequency and CAN speed sensing
Load unbalanced alarm
Compatible with Tier 4 / Stage V engines

Electrical Ratings

Supply: 8–35 V DC continuous
Survives 0 V cranking dropouts (50 ms under specified conditions)
Operating current: 85 mA 12 V / 96 mA 24 V
Generator & mains voltage range: 15–415 V AC (Ph-N) / 26–719 V AC (Ph-Ph)
Frequency range: 3.5–75 Hz
Fuel and start outputs: 10 A short-term / 5 A continuous
Auxiliary outputs: 2 A DC

Physical

Overall size: 140 × 113 × 43 mm
Panel cut-out: 118 × 92 mm
Max panel thickness: 8 mm
Weight: approx. 0.26 kg
Operating temperature: –30 °C to +70 °C (heated display option available)

Typical Protections

Low oil pressure
High engine temperature
Overspeed / underspeed
Over-voltage / under-voltage
Over-current / overload
Charge failure
Emergency stop
Auxiliary shutdown
First-up fault indication

8. Dimensions & Access Points:

Overall dimensions: 1 782 mm (L) × 750 mm (W) × 1 209 mm (H)

Main access and connection points

Exhaust gas outlet
Coolant inlet and hose fittings
Air inlet
External fuel inlet / return fittings and fuel drain
Control cabinet and field wiring cabinet
Lifting lug, roping lug, forklift channels and tie-down points
Access doors

9. Control & Field Wiring Cabinet:

Charge indicator
Control cabinet lamp and switch
DSE 4520 MKII control module
Key switch
Time counter
Main circuit breaker and convenience receptacle breakers
3-phase and 1-phase convenience receptacles
Emergency stop button
Live, Neutral and Ground terminals