139-H-FLC

Product Description

Model number 139-H-FLC is one of the full-load current horizontal mounting motor protection relays. The full load current on this model operates at four to twenty milliamperes. The associated protections listed for this relay are over temperature, stall-mechanical jam, locked rotor, undercurrent, ground fault, single phase/unbalance, repeated starts, and overload protection with selectable curves. This relay will protect three-phase AC motors in opposition to circumstances that can cause damage. 

There are six applications in which the 139-H-FLC relay will be used; one of the applications is to ensure the safety of the user. This application will prevent shock hazards using the ground fault feature to find leakage currents from moisture in mines or potential winding shorts. 

As mentioned above, this relay will be mounted horizontally; it should be noted that no matter which mounting orientation is chosen for the relay, a rectangular panel cutout will be required. Once the cutout is available the relay will be held in place by two U-shaped clamps and will then be ready for wiring. 

There is a ground fault current available with the 139-H-FLC relay which will accept all of the current-carrying conductors through the ground fault currents window. Please note that it is very highly recommended that a minimum of two current leads need to be twisted together to minimize the noise pickup on the relay. There is a specially designed current that can be used to help output lower-level signals. All of the above information can be found in the General Electric Multilin 139 Series Motor Protection Relay Manual which is attached to this page under the manuals tab.