EFOY Pro 12000 Duo

The EFOY Pro 12000 Duo, our most powerful fuel cell, offers completely reliable, off-grid and emergency power.

Power generator for high energy requirements

The EFOY Pro 12000 Duo, our most powerful fuel cell, offers completely reliable, off-grid and emergency power. With a power output up to 500 W, the EFOY Pro 12000 Duo operates applications with higher power requirements and it fits within a control cabinet that’s just 19-inches across. Typical areas of application are back-up power supplies for wind and telecommunications systems, larger multi-wellpad SCADA and measurement systems, off-grid power supplies for traffic monitoring and environmental sensors and on-board use in vehicles.

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Technical Data

Compare technical data

EFOY Pro12000 Duo
Power output500 W
Power output after (operating hours)1400 W (3,000 h)
Nominal voltage24 V DC / 48 V DC
Charging current20.83 A / 10.42 A
Charging current after (operating hours)16.67 A / 8.33 A (3,000 h)
Recommended battery capacity 224 V: 200 to 875 Ah
48 V: 100 bis 450 Ah
Weight32.0 kg (70.6 lbs)
Warranty 324 months / 3,000 operating hours
Connectable cartridgesM5, M10, MT60 / M28 only with M28 adapter
Number of connectable cartridges (with DCS1)2 (4)
Length fuel cartridge connector73 cm / 28.7 in
Switching threshold for automatic battery charging at 12 V / 24 V / 48 V 4On: -- V / 24.4 V / 48.8 V
Off: -- V / 28.4 V / 57.6 V
Required start-up voltage at 12 V / 24 V / 48 V-- / 20 V / 36 V
Maximum battery voltage at 12 / 24 V /
48 V
-- / 31 V / 62 V
Noise level (at 1m / 7m distance)62 dB(A) / 45 dB(A)
Nominal Consumption 50.9 l/kWh
Quiescent current draw at 12 V75 mA (at 24 V)
Operating temperature 6-20 °C to +50 °C / -4 °F to +122 °F
Start-up temperature+3 °C to +50 °C / +37.4 °F to +122 °F
Storing temperature+1 °C to +50 °C / +34 °F to +122 °F
Altitude 7up to 4,000 m / 13,123 ft
Dimensions D x W x H640 x 441 x 310 mm / 25.2 x 17.3 x 12.2 in (7HE)
International Protection (IP-Class)IP 20
Inclination along the roll axisPermanent: max. 10°; temporary (<10 min): max. 45°
Inclination along the lateral axisPermanent: max. 10°; temporary (<10 min): max. 45°
Communication protocolsMODBUS RTU; Clear text protocol (SIO commands)
User-InterfaceAt the unit with text display or via external operating panel OP2
Data-InterfaceRS232 RJ-45 plug
2x RS485 RJ-45 plug
I/O terminals (A, B, GND)
Electrical InterfacePower: +/- terminals: min. 10 mm²
Sense: +/- terminals: min. 2 mm²
Ground: Terminal: min. 2 mm²

1) Nominal power varies by ±10 %, decreases with the operation hours. Specification valid within warranty period.

2) Depends on battery type and application – bigger batteries possible, if additional energy source available (e.g. solar)

3) Regional warranty conditions for EFOY Pro fuel cells apply.

4) Factory Setting – can be modified with Interface Adapter and PC or operating panel OP2.

5) Effective consumption depends on operating conditions.

6) At temperatures above +40 °C / +102 °F the power output can decrease. Charging Lithium (LiFePO4) batteries is not always possible at temperatures below 0 °C. The instructions from the battery manufacturer must be observed.

7) During operation above the recommended altitude the power output can decrease.

EFOY Pro 800 Duo

Power output
45 W

Nominal voltage
12 V DC / 24 V DC

88.3 kg


EFOY Pro 2400 Duo

Power output
110 W

Nominal voltage
12 V DC / 24 V DC

99.3 kg


EFOY Pro 12000 Duo

Power output
500 W

Nominal voltage
24 V DC / 48 V DC

32 kg


EFOY Pricing Information

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