Electric fence Heavy Duty cut-out switch. These are typically attached to the first fence-post and wired between the lead-out wire from the Energizer and the start of your fence to easily switch the fence off. They can also be wired into various sections of fence to switch specific sections or paddocks on and off. This can help reduce load on the Energizer while paddocks are not in use, and can help isolate faults (although this is much easier with a JVA Fault Finder!). The perfect accessory for any fence!