AvK A7 — low-voltage six-pole generator 960–2100 kVA for medium-speed engines

Country: United Kingdom · Model: A7

The low-voltage six-pole generator A7 for medium-speed engines, 1000 rpm at 50 Hz and 1200 rpm at 60 Hz. The class F marine version gives 960–1625 kVA at 50 Hz and 832–1600 kW at 60 Hz, and the class H industrial version 1200–2100 kVA at 50 Hz and 1040–2016 kW at 60 Hz. The voltages are 380–480 V and 660–690 V.

Marine version (class F): 960–1625 kVA 50 Hz; 832–1600 kW 60 Hz
Industrial (class H): 1200–2100 kVA 50 Hz; 1040–2016 kW 60 Hz
Voltage: 380–480 V and 660–690 V
Number of poles: 6 (1000/1200 rpm)

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Technical specifications

Marine version (class F)	960–1625 kVA 50 Hz; 832–1600 kW 60 Hz
Industrial (class H)	1200–2100 kVA 50 Hz; 1040–2016 kW 60 Hz
Voltage	380–480 V and 660–690 V
Number of poles	6 (1000/1200 rpm)
Winding	wire, 5/6 pitch
Excitation	PMG
AVR	DM110 / DECS 150 (digital), options DECS100
Insulation	class H
Protection	IP23; IP44, IP54 (water cooling)
Overload	110 % 1 h in 12 (ISO 8528)
Short-circuit current	three times rated
Warranty	3 years

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

The A7 opens the A-Range. The stator has a wire winding with a 5/6 pitch and CoreCooling, the excitation comes from a PMG, and the digital regulator DM110 according to the brochure, or DECS 150 according to the product page, is supplemented by the options DECS100 and DECS150. Class H insulation is standard, the protection is IP23, a rolling bearing is standard and a sleeve bearing is optional, and the SAE adaptors are 1, 00 or no adaptor. For ships there is a water cooler on anti-vibration mounts with IP54 protection for sea and fresh water, and the overall protection range is IP23–IP44 with an IP54 terminal box. The 110 % overload lasts one hour in every twelve under ISO 8528, the short-circuit current is three times rated, PTO and PTI modes are possible, and SOLAS compliance is available. The drive can be diesel, gas or hydrogen engines, engines running on biodiesel and HVO, and steam turbines.

How to choose

First the engine speed is determined, 1000 or 1200 rpm, since the A7 is a six-pole machine. The class F marine version reaches 1625 kVA at 50 Hz, and the class H industrial version up to 2100 kVA. The rated maximum continuous output on the website is 1625 kVA at 50 Hz and 2000 kVA at 60 Hz, so the figure for a project should be confirmed for the specific engine. For four-pole machines see the S6 (810–1400 kVA at 400 V).

Request a price and lead time

AvK A7 — low-voltage six-pole generator 960–2100 kVA for medium-speed engines. We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

Which engines is the A7 generator intended for?

For medium-speed engines, 1000 rpm at 50 Hz and 1200 rpm at 60 Hz. The generator has six poles.

What is the output of the A7 in the marine and industrial versions?

The marine version, class F, gives 960–1625 kVA at 50 Hz, and the industrial version, class H, 1200–2100 kVA at 50 Hz. At 60 Hz this is 832–1600 and 1040–2016 kW respectively.

Which voltage regulator is fitted to the A7?

The digital DM110 according to the brochure, or DECS 150 according to the product page, with three-phase sensing. The options are DECS100 and DECS150.

What protection rating does the marine A7 have?

The water cooler on anti-vibration mounts has IP54 protection. The overall range is IP23–IP44, with an IP54 terminal box.

Does the A7 withstand overload?

Yes, 110 % for one hour in every twelve under ISO 8528, and the short-circuit current is three times rated.