Switch-fuses, load-changeover switches

Switch-fuses and load-changeover switches by EFEN are characterized by their robust functionality and compact design. The range comprises 3-and 4-pole versions as well as bypass versions with and without fuse-links.

Load-changeover switch

Application

Load-change over switches of type FMU (FMUN) connect one consumer with either of two power sources (e. g. grid or back-up power supply). The switching function of the devices is 1 - 0 - 2*. In position 1, the consumer is connected to grid supply. In position 2, it is connected to a back-up power supply. In position 0, the consumer is completely isolated from the power sources. Thanks to the visible disconnection, the load-changeover switch complies with fuse-switch requirements.

Areas of use

Telecommunications, railroad systems, utility applications, hospitals, radio stations, airports, transport services, etc.

Scope of supply

Devices are supplied with handle and face plate.

Master and emergency switches

Application

Master and emergency switches of type HSWA are especially suitable for use in machine controls and control cabinets. Due to their exceptional technical properties, they comply with any requirement for repair and service switches or crane master switches. They feature a motor-breaking capacity of AC 23 (switching of motors and other highly inductive loads).

Areas of use

  • Enclosed systems
  • Machine tools
  • Factory-built assemblies of switchgear
  • Scope of supply

    Devices are supplied complete with padlockable handle, front cover, door coupling with latch, and shaft extension with single-side terminal cover.

    Bypass switches

    Application

    Bypass switches of type FMU BY1 (FMUN BY1) connect one consumer with either of two power sources (e. g. grid or back-up power supply). The switching function of the devices is 1 - 0 - 2*. In position 1, the consumer is connected to grid supply. In position 2, it is connected to a back-up power supply. In position 0, the consumer is completely isolated from the power sources. Thanks to the visible disconnection, the bypass switch complies with fuse-switch requirements.

    Areas of use

    Telecommunications, railroad systems, utility applications, hospitals, radio stations, airports, transport services, etc.

    Scope of supply

    Devices are supplied with handle and face plate.