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Compact and Masterpact

Source changeovers from 40 A to 6300 A

Part of Pact Series

Source-changeover system with both manual (MTSE) & automatic (ATSE) transfer switching equipment offered for circuit breakers (Class CB) and switch disconnectors (Class PC)

Compact and Masterpact
    Changeover Switch

    Compact and Masterpact

  • Features

    The Transferpact range provides a source-changeover system for your installation.

    General Specifications:
    • Nominal current: 40 to 6300 A
    • Available for the following circuit breakers and switch disconnectors: Masterpact NT/NW, Compact NSX, Compact NS, Compact INS/INV
    Manual Transfer Switching Equipment (MTSE) for Class CB
    • Mechanical interlocking through rods, cables or plate
    • A wealth of accessories for interlocking toggles, rotary handles, keylocks with captive keys 

    Automatic Transfer Switching Equipment (ATSE) for Class CB

    • Available for two sources:
    • Utility to utility with the basic automatism (BA) controller and the universal automatism (UA) controller
    • Utility to GenSet with the universal automatism (UA) controller
    • Electrical interlocking (IVE) to allow for Break-before-Make thanks to the delay of 250 millisecond
    • Automatism control plate (ACP) to protect the BA/UA controller and control the On/Off circuit breaker function. Controller can be directly mounted on the ACP plate or with cables up to 2 meters.


    Your Transferpact source-changeover system can enable:

    • Continuity of service to ensure energy availability for maintenance and replacement of sources (N or R) with no interruption of service
    • Power source management according to power quality and power costs
    • Optimized energy management by transferring the load to another source according to external requirements (demand/response contract, etc.)
    Quick and simple installation

    • All-in-one solution with Transferpact FXM
    • Connection with plug and play cables
    • Convenient standardized size for the controller in the DIN format (138 x 138 mm)
    • Downstream coupling accessory for easy and faster cabling
    • Online and offline software tools that help to improve efficiency 
    Flexible system

    • You can install in your switchboard vertically or horizontally
    • Its compact design provides solutions for your chosen ACB and MCCB including Masterpact NT/NW,, Compact NSX, Compact NS
    • Possibility to mix the different type of circuit breakers and switch disconnectors
    Personal safety and operational dependability

    • Ensures compliance with international standards IEC 60947-6-1


    For LV electrical installations where safety and continuity of service are critical for people and/or equipment:
    • Commercial and service sector (operating rooms in hospitals, safety systems for buildings, computer rooms for banks and insurance companies, lighting and emergency lighting systems in malls, etc.)
    • Industry (assembly lines, engine rooms on ships, critical auxiliaries in thermal power stations, etc.)
    • Infrastructure (port and railway installations, runway lighting systems, control systems on military sites, etc.)
    An excellent choice for all standard applications, including:
    • Buildings and infrastructure with the need for continuity of service and cost optimisation: offices, small and medium-sized businesses


    • Compact NSX source changeover
    • Interpact source changeover

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