MASTER COMPACT 1B

Generator power plant in mains paralleling controller (without busbar breaker)

The MASTER COMPACT 1B is designed to manage a mains incomer with a single circuit breaker. It allows advanced interoperability with various energy sources, such as generators, inverters or other mains incomers.

It belongs to our range of synchronization modules / hybrid controllers for managing power plants with paralleling energy sources. This controller used to manage power plants with 1 to 32 generators in parallel with mains. The MASTER COMPACT 1B is suitable for applications with 1 circuit breaker (no circuit breaker on the bus).

It offers flexibility and time-saving thanks to simple wiring and easy programming. Focused on user-friendly operation and connectivity, this product incorporates several advanced technologies that enhance the user experience and remote management.

The controller can be configured from the front face, the i4Gen HMI, or via the free i4Gen Suite software.

Variations

Mains incomer with a single circuit breaker management

MASTER COMPACT 1B ensures the synchronization of other power sources, such as generators and inverters, to enable mains breaker to close on the common busbar. Once the mains is connected, it regulates the active power and reactive power of other sources to maintain a perfect balance when they operate in conjunction with the mains.
Interoperability with multiple sources

This product can be interconnected not only with generators equipped with GENSYS COMPACT PRIME, but also with photovoltaic and battery inverters, enabling flexible, optimized management of multi-source power plants.
Easy connection to controllers

Automatic detection of controllers via the Ethernet network ensures fast, safe installation.
Guided experience and intuitive graphic display

Benefit from an intuitive user interface with two operating modes (standard and advanced) for simplified management. Information is clearly displayed via dynamic graphs for real-time monitoring.
Simplified programming

The Easyflex function makes it easy to create your own equations and programs, with intuitive, efficient drag-and-drop operation.
Automatic update

Keep your system up to date with automatic firmware updates for controller and PC software, without service interruption.
Remote access

Supervise, configure and control your controller remotely via a secure interface, wherever you are, for easier operations management.

Datasheets

MASTER COMPACT 1B – Datasheet
Certifications

MASTER COMPACT 1B – Certification of conformity
Technical documentation

MASTER complex central configuration – Application example

Application note – Analog inputs

Application note – Equipotentialities

i4Gen Suite automatic updates – Readme

MASTER COMPACT 1B – Standard wiring schematics

MASTER COMPACT 1B – Operator Manual

MASTER COMPACT 1B – Modbus Table

Release Notes for Version 26.03
Brochures

Cables and peripherals – Brochure

Remote monitoring and control COMPACT range – Brochure

Product applications – Brochure

Customized engineering – Brochure

Paralleling controllers features comparison chart

Comparison of hybrid controller features
Miscellaneous

2026 Training Program

Related products

GENSYS COMPACT PRIME

The GENSYS COMPACT PRIME is designed for advanced management of multiple generators in power plants, while offering interoperability with other types of energy sources for more complex systems.

MASTER COMPACT 1B

Generator power plant in mains paralleling controller (without busbar breaker)

Variations

Features

Mains incomer with a single circuit breaker management

Interoperability with multiple sources

Easy connection to controllers

Guided experience and intuitive graphic display

Simplified programming

Automatic update

Remote access

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