Generator Controllers Manufacturer

Bernini Design has been manufacturing generator controllers since 1984. The main products are "custom-made", but we also offer standard products presented on this page.

As one of the most experienced companies in the industry, we have spent decades perfecting a single philosophy: We design and manufacture our own hardware. While others rely on third-party components, we control every aspect of the design. We don't just meet the needs of generator manufacturers; we focus on serving the end users who rely on power when the grid fails.

¿Cuáles son los dos tipos básicos de controladores de generador?

Centraline per gruppi elettrogeni

Qu'est-ce qu'un contrôleur de groupe électrogène?

Controlere Grupuri Electrogene

Stromerzeuger Controller

Sterownik generatora

Rugged Design, Absolute Reliability: Our Engineering Philosophy

At Bernini Design, we don't just follow industry standards—we set them.

From our Italian design headquarters to our advanced manufacturing facility in Romania for generator controllers, every AMF controller, ATS unit, and auto-start module we produce is built to uncompromising standards. By keeping our hardware design entirely in-house, we deliver the durability and safety that heavy-duty generator applications demand when failure is not an option.

Generator Controllers: Kinds and Purposes

Core generator controllers are specifically designed to control, automate, and protect all types of power generators.

They feature user-friendly interfaces, adjustable parameters, at least 8 I/O lines, versatile analogue inputs, and rugged structures suitable for direct mounting on generators. Under this broader umbrella, we offer specialised variants tailored to specific operational needs: AMF (Automatic Mains Failure) controllers, ATS (Automatic Transfer Switch) controllers, and AGS (Automatic Generator Start) controllers. The following tables summarise their features to give you a clear overview.

Understanding the Generator Controller Manufacturer Specifications

Deciphering generator controller datasheets can be frustrating, especially when manufacturers rely on vague definitions and ambiguous metrics.

In this article, we break down the mandatory, non-negotiable specifications that a reputable manufacturer must clearly and transparently state.

Controller Size, Dimensions & Cut-Out

This refer to the total dimensions of the device. Bernini Design sticks to standard DIN panel instrument sizes namely )6x96, 144x192 and so on. Recentrly Bernini Design start introducing a round cut-out solutions.

In other words instead of losing time in making difficult square holes, you can make a simple round hole with a simple circualr saw. In this example te roud cut-out suitable for Be242 Universal ATS controller. The controller is then fixed to the front panel via 4 screws with nuts.

Microcontroller Based

This is the most ridicoulus specification. There is something out ther non-microcontroller based? The specifications only make sense if the generator controller feature a multi-processor configuration or special "out of the box" electronic architecture.

Nominal Voltage

"Nominal voltage" is often a vague specification found on generator controller data sheets. The correct specification should be the Input Voltage Range, which clearly defines the lower and upper limits within which the controller can perform accurate measurements.

Furthermore, the permanent maximum voltage specifications indicate the absolute safe operational limit of the device. The ratings for a generator controller manufactured by Bernini Design far exceed standard industry expectations, achieved through a specialized circuit design dedicated to input voltage measurement.

Power Supply Requirements

The power supply is normally derived from the battery system and can be 12V or 24V. The most critical factor to evaluate is the minimum operating voltage.

While a generator controller featuring static outputs can technically function down to a 6 VDC supply, this does not imply that the entire automation system remains operational. Engine automation typically relies on electromechanical relays. For example, in a 12V battery-powered system, when the voltage drops below 8V during heavy cranking, relays tend to chatter or open their contacts. This behavior generates severe electrical noise and unsafe operating conditions.

To prevent these issues—particularly data corruption during engine cranking—Bernini Design generator controllers incorporate several proprietary technical solutions. Additionally, Bernini Design specifies the exact maximum admitted overvoltage on the DC supply, ensuring robust protection for controllers directly connected to engine-starting batteries.

Operating Temperaure Range

Input Electrical Specifications

Input Functional Specifications

Output Electrical Specifications

Output Functional Specifications

Comminications Interface

User Interface

Display & Indicators Specifications

Sunlight Exposure

Vibration Specifications

Engineered for Longevity: Our Complete Controllers Portfolio

Under the "generator controllers" umbrella, we manufacture specialised AMF & ATS controllers, Auto-Start modules, and high-performance generator management systems. Built on a legacy dating back to 1984, our current generation of generator controllers remains fully available for direct replacements, upgrades, or custom retrofits. Every unit is engineered for absolute reliability, ensuring you have the exact solution you need when the grid fails.

Be2K-Plus

Automatic Mains Failure Controller suitable for Telecom Applications

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This combined Automatic Mains Failure & generator controller is designed for BTS and other critical applications where high number of I/O is a mandatory requirement.

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The Be2K-Plus Automatic Mains Failure Controller

Be142

AMF/ATS Universal Controller General Applications

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The Be142 controllers are installed in various systems where NFPA-100 & CSA-C282-M89 compliance together with a wide operating temperaure range capabilities are of key importance.

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The Be142 Universal AMF / ATS Generator Controller

Módulo de control de fallos de red eléctrica automática Be142

Module de contrôle de panne de secteur automatique

BeK3

AMF Controller Industrial Applications

Tutorial Video

NFPA-100 & CSA-C282-M89 Compliant

When it comes to Canbus and Modbus for industrial environments the BeK3 controller is the best option.

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The BeK3 AMF ControllerTutorial

Módulo de control AMF BeK3

Be124

Universal Generator Controller 50/60/400Hz

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This is our best offer for a generator controller for aircraft ground support machinery. The Be124's main focus design is a granular engine and generator control and monitoring. The Be124 interfaces with standard and J1939-compatible engines.

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The Be124 High-Tech Generator Controller

Be24

Automatic Generator Start Heavy Applicatons

Among the generator controllers for general purposes, the Be24 is the best choice. First, it withstands harsh conditions. Consequently is the best solution when it comes to industrial-grade generators.

Tutorial VideoAdd two relays to transform a second-hand generator into an automatic generating set.

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The Be24 Automatc generator Start Controller

Controlador Para Grupo Electrógeno Be24

Be1

Universal Auto-Start / Low-Battery Start Controller

Tutorial Video

The Be1 is a cost-effective generator control and monitoring module. You can remotely start and stop the generator via hardware contact or GSM. It monitors a single-pahse generator but having inputs rated at 600Vac, you can connect two phases of the generator.

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Low-Battery Auto Start Module Tutorial

Be172

Universal Engine Key-Start for General Applications

Install it in a small generator, compressor, or agricultural machinery. It replaces the Be72 KKey-Start module

Tutorial Video

It provides an automatic stop to prevent major damage to your engine. You can install it when replacinng a Be73 key-start module: it is 100% compatible.

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The Be172 Key-Start Module

Módulo de Control Motor Diesel Be172

Be72

Diesel Engine Key Start Module

Install it in a small generator, compressor, or agricultural machinery.

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The Be72 Engine key-Start Module

Módulo de control Be72 para uso de motor diesel

Be242

Universal ATS Controller suitable for FV and generators ATS control panels

Tutorial Video

The Be242 features an interface board committed to drive contactors or motorised transfer switches. You can easily interface old second-hand generators.

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The Be242 Universal ATS Controller

Controlador ATS universal

Vintage Generator Controllers

We have been in the generator controller business since 1984. In case you need, for any reason, original parts manufactured in the past, we can make it on request. No headache in looking for similar parts and rebuilding the wiring
“We have been in the generator controller business since 1984. In case you need, for any reason, original parts manufactured in the past, we can make it on request. No headache in looking for similar parts and rebuilding the wiring.

AMT910 AMT920 BE11

Single-Phase AMF Controller

The AMTXX controllers are no longer available. But you can replace this unit with Be21. It is fully compatible.

Buy Online the AMT9XX Genset Controller

Be23 & Be46

General Purpose Generator Controller

Be46: Buy Online

Replacing Be23

BM80

General Purpose AMF Controller

It is about a general-purpose 3-phase automatic mains failure which monitors two wires from the alternator up to 500V. It features a battery charger.

BM80 AMF Generator Controller

Controlador de grupo electrógeno BM80

Be21

1Single-Phase AMF Controller

It is about a general-purpose single-phase automatic mains failure first designed in 1990 with the name AMT910, then Be11 in 1998, then Be21 in 2002. There are over 150.000 Be21 working worldwide. Replacement units are always available in stock.

Be21 Presentation