Type B-986
Superior Solenoid Key Release Unit

Printable Technical Specifications

The Superior Solenoid Key Release Unit type B-986 is available in voltages ranging from 24 to 250 volts either A.C. or D.C. It can be supplied for panel mounting unhoused, or for outdoor use with aluminum housing with gasket and dust covers. This unit consists of a lock, a solenoid coil and a switch (3-pole double throw) arranged so the key is released by energizing the solenoid from an external power source.

Moving the key operates the auxiliary switch. A toggle switch rated at 15A is utilized for connecting external components. Push buttons and indicating lights can be incorporated if needed.

Application:

Solenoid release units are normally used in conjunction with other interlock components. Two of these solenoid release units, electrically connected, could release either key through the auxiliary switches, thereby resulting in positive control of either key.

Operation:

In the initial condition the key is trapped in the Solenoid Key Release Unit by the spring loaded solenoid plunger. When a signal is sent to the unit the indicating lamp illuminates, this indicates to the operator that a signal is present. Depressing the push button energizes the solenoid allowing the key to be rotated to the releasable position. Rotating the key to the releasable position changes the state of an internal double pole double throw toggle switch available to the customer on the terminal strip. The key may now be removed and used to in the interlock sequence. Returning and rotating the key back to the trapped position again changes state of the switch to its original position and re-traps key.

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