Magnetic Latching
solenoids are designed for
low duty cycle applications
where the solenoid's energized position is needed for an extended period of time. When power is applied to the solenoid, the plunger
moves to its energized position. The plunger latches magnetically in this position and remains there, consuming no power, until a negative electrical pulse is applied to allow the plunger to unlatch. The reverse
voltage applied is dependent on the load attached to the plunger but must be well below the initial energizing value.
While continuous duty,
on/off solenoids tend to develop heat, magnetic
latching solenoids do not
since now power is consumed in the energized state.
Since magnetic latching solenoids are typically used in low duty cycle applications, they are also
perfect candidates for battery operation. These
products are therefore
cataloged as standard as
low as 3 volts.
Typical applications for
magnetic latching solenoids include door closers, locks, latches and security devices. Almost any solenoid type can be developed as a magnetic
latching version. We offer
open frame and tubular varieties as catalog standard products.
Linear Magnetic Latching Designs
STA® Tubular Solenoids
Pull operation
Economical design tailored to high volume applications
Well suited to lock/latch operations
STA case provide greater shock and vibration integrity
25 million cycles
Imperial and metric units
Multiple plunger designs and shaft end configurations
Open Frame Solenoids
Pull-in operation
Most economical design for volume applications
Up to 5 million cycles depending on the product size and application
Higher power consumption; moderate force output
Compact box frame and C frame designs available in Imperial and metric units
Variety of enclosures, mounting and shaft end configurations
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