CAT XQ425 DIESEL GENERATOR
The Cat® XQ425 provides world class performance and enhanced usability. This model is powered by the fuel-efficient Cat C13 Tier 4 Final engine compliant equipped with the Cat NOx Reduction System. Equipped with the new EMCP 4.4 control panel, the XQ425 features a user-friendly interface and automatic generator set paralleling. A principle advantage of the control system offers simpler and faster voltage changes. Providing greater flexibility when moving between multiple job sites with differing frequency and voltage needs, the auto-configuration capability eliminates the time required when reprogramming units and potential errors. Additional features include lower noise levels and improved part load fuel consumption.
Technical Data
Specification
Frequency
Voltage
Standby kW (kVA)
Prime kW (kVA)
Speed rpm
480V 50/60 Hz Switchable Rating
60 Hz
480/277V
375 (469)
340 (425)
1800
60 Hz
240/139V
375 (469)
340 (425)
1800
60 Hz
208/120V
350 (438)
320 (400)
1800
50 Hz
400/230V
320 (400)
290 (363)
1500
600V 60 Hz Rating
60 Hz
600V
375 (469)
340 (425)
1800
60 Hz
480V
320 (400)
292 (365)
1800
Cat® C13 ACERT™ Diesel Engine
Metric
Imperial (English)
Configuration
I-6, 4-Stroke-Cycle Water Cooled Diesel
Bore
130 mm
5.1 in
Stroke
157 mm
6.2 in
Displacement
12.5 L
763 in3
Aspiration
Turbocharged-Aftercooled
Compression Ratio
17.0:1
Fuel System
MEUIC
Governor Type
ADEM™ A4
Aftercooler
ATAAC
Turbocharger
Single
Fuel
Requires ULSD
Benefits & Feature
Fuel/Emissions Strategy
• Meets U.S. EPA Tier 4 Final and CARB
Certified for Non-Road Mobile applications at all
50 and 60 Hz ratings
Single-source Supplier
- Factory designed and fully prototype tested with certified torsion vibration analysis available
- ISO 9001:2000 compliant facility
Cat C13 ACERT Tier 4 Final Diesel Engine
- Uses ACERT Technology and Cat NOx Reduction System (NRS)
- Four-stroke diesel engine combines consistent performance and excellent fuel economy with minimum weight
- Electronic engine controller
Cat CEM (Clean Emissions Module)
• Aftertreatment module consists of Caterpillar
Regeneration System (CRS), Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR)
Diesel Exhaust Fluid (DEF) Tank
- 12 gallon DEF tank with on tank fill and integrated pump, level sensor and heating elements
- Electrically heated DEF lines from DEF tank to CEM
Cat EMCP 4.2 Control Panel
- Fully featured power metering, protective relaying and engine/generator control and monitoring
- Simple user friendly interface and navigation
- Automatic set-point adjustment integrated with voltage and frequency changes
Cat SR4B Series Generator
- Designed to match performance and output characteristics of Cat diesel engines
- Permanent magnet excitation
- Segregated AC/DC, low voltage accessory box provides single-point access to accessory connections
*N/A for 600V
LEHE1123-01
Cat Digital Voltage Regulator (Cat DVR)
- Three-phase sensing
- Adjustable volts-per-hertz regulation
- Provides precise control, excellent block loading, and constant voltage in the normal operating range
Enclosure
- Highly corrosion-resistant 12-gauge sheet steel construction
- Two-coat polyester powder-coated finish
- 7 doors and 3 access doors for ease of maintenanc