Auxiliary Power Unit – M2312

Portable Military Power Auxiliary Power Unit M2312 M2312 / AC & DC AUXILIARY POWER

Auxiliary Power Unit – M2312

The Auxiliary Power Unit – M2312 is an onboard auxiliary power system developed to maintain critical military vehicle systems when the main engine is switched off or unavailable. Its architecture supports both AC and DC power requirements while supplying electrical, pneumatic and hydraulic subsystems, onboard climate control and mission equipment across demanding operational conditions.

AC Output230 VAC
AC Continuous Power4 kVA
DC Output28 VDC
DC Continuous Power10,5 kVA

Modular AC and DC auxiliary power platform for main-engine-off operation, co-generation and multi-system military vehicle integration.

Integrated AC and DC Auxiliary Power for Military Platforms

The Auxiliary Power Unit – M2312 provides uninterrupted power to selected vehicle systems without requiring continuous operation of the main engine. It supports pre-mission weapon and system testing, onboard diagnostics and main-engine cooling, while helping essential equipment remain operational if the primary engine is damaged or unavailable.

The system also extends onboard power availability in deployment areas where fixed external power infrastructure is not available.

01 / PLATFORM INTEGRATION

Modular Integration Across Ground, Stationary and Airborne Systems

The M2312 is intended for tracked and wheeled armored vehicles, tactical and support vehicles, stationary systems and airborne platforms. Supplied application examples include main battle tanks, self-propelled artillery systems, armored and infantry fighting vehicles, armored personnel carriers, MRAP vehicles, rocket systems, shelters, tents, helicopters and aircraft.

Depending on vehicle architecture and mission requirements, the system can be installed inside a sound-insulated compartment or externally on the platform structure to address thermal dissipation, acoustic management and integration requirements.

DC Continuous
Power
10,5
kVA

Dual AC/DC Architecture for Diverse Onboard Loads

The broader APU architecture described in the supplied information supports configurations from 2 kW to 20 kW and provides 24/28 VDC as well as higher AC and DC voltage options. For the M2312 specifically, the technical table lists 230 VAC with 4 kVA continuous AC power and 28 VDC with 10,5 kVA continuous DC power.

The system draws fuel directly from the vehicle fuel tank and does not require a separate fuel tank or battery. Depending on application requirements, air-cooled or liquid-cooled diesel architectures may be configured; the M2312 technical table specifically lists Water Cooled.

Operational Capabilities

M2312 Auxiliary Power Features

01

AC & DC Power Supply

The M2312 technical configuration provides dedicated AC and DC output specifications for different onboard electrical requirements.

02

Main-Engine-Off Support

Selected mission and vehicle systems can remain powered without continuous operation of the main engine.

03

Co-Generation Capability

The APU can operate alongside the main generator and supplement available power when onboard demand increases.

04

Vehicle Fuel Integration

The system draws fuel directly from the vehicle fuel tank without requiring a separate APU fuel reservoir.

05

Automatic & Manual Start

The electronic control interface supports automatic and manual start options for different mission conditions.

06

Real-Time Monitoring

The digital control unit provides operators with key operating parameters and system fault information.

System Architecture

AC Output, DC Output and Control Configuration

SYSTEM / 01

AC Power Output

Output Voltage (AC)
230 VAC.
Continuous Power (AC)
4 kVA.
Cooling
Water Cooled.
SYSTEM / 02

DC Power Output

Output Voltage (DC)
28 VDC.
Continuous Power (DC)
10,5 kVA.
Maximum Ampere
300 A.
SYSTEM / 03

Control & Monitoring

Electronic Control Unit
IP67-rated ECU with digital display.
Start Modes
Automatic and manual.
Displayed Data
Temperature, fuel level, pressure, DC current, battery voltage and system fault information.
Deployment Areas

Operational Applications

Main Battle Tanks
Self-Propelled Artillery & Rocket Systems
Armored Fighting Vehicles & APCs
MRAP & Tactical Vehicles
Shelters & Stationary Systems
Helicopters & Aircraft
02 / FUNCTIONAL ROLE

Multi-System Power Support Independent of the Main Engine

The M2312 can supply onboard electronics, hydraulic and pneumatic systems, climate-control units, weapon systems, communication equipment, fire suppression systems, power distribution units and KBRN systems independently of continuous main-engine operation.

In co-generation mode, the APU operates alongside the vehicle's main generator, continuously monitors onboard power demand and supplements available output when newly integrated equipment creates additional electrical requirements.

Military Test Standards

Environmental, EMC, Electrical and Reliability References

The supplied product information states that the M2312 is designed and tested in accordance with the following military standards for electromagnetic compatibility, environmental performance, electrical power and reliability considerations.

MIL-STD-461
MIL-STD-810
MIL-STD-704
MIL-HDBK-217
FAQ / PRODUCT

Frequently Asked Questions

01What AC output is specified for the M2312?

The technical table specifies 230 VAC output voltage with 4 kVA continuous AC power.

02What DC output and maximum current are listed?

The supplied data lists 28 VDC, 10,5 kVA continuous DC power and a maximum current of 300 A.

03What operating and storage temperature ranges are specified?

The operating range is -32°C ~ +49°C, while the storage range is -40°C ~ +60°C.

04What noise level and maximum operating elevation are listed?

The technical table specifies 75 dB @ 1 m and a maximum operating elevation of 3000 m.

05What system weight and dimensions are specified for the M2312?

The supplied data lists a system weight of 800 kg ±10 and dimensions of 1814mm × 775mm × 638mm ±5.

Auxiliary Power Unit – M2312 Specifications

Technical Data

Output Voltage (AC)230 VAC
Continuous Power (AC)4 kVA
Output Voltage (DC)28 VDC
Continuous Power (DC)10,5 kVA
Maximum Ampere300 A
Operating Temperature-32°C ~ +49°C
Storage Temperature-40°C ~ +60°C
Integrated Cooling SystemWater Cooled
Noise Level75 dB @ 1 m
Maximum Operating Elevation3000 m
System Weight800 kg ±10
Dimensions1814mm × 775mm × 638mm ±5
Fire Bulgaria / Product Support

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