Latching Technology Used to Isolate Power Faults
A robust latching solenoid was designed with a manual reset feature for a manufacturer of medium-voltage power distribution equipment who needed a solution for actuating the fault interrupter in a padmount switchgear.
A manufacturer of medium-voltage power distribution equipment needed a solution that would actuate the fault interrupter when their system detected a safety concern. It needed to remain in position until their system hardware was manually reset. The solution also needed to be stable in a wide range of temperatures.
The TLX Solution
TLX Technologies designed and produced a latching solenoid with a manual reset feature that eliminates the durability failure modes of standard U-frame designs. A permanent magnet holds the solenoid in the latched position, and when the system detects a fault, a short pulse de-latches the solenoid to activate the system’s fault interrupter. When the technician manually resets the system’s hardware after the fault is cleared, the solenoid consequently resets too. This solenoid is temperature stable and can release at -40°C in less than 12 msec.
Manual Reset Latching Solenoid
- Release voltage
- 3 to 30 VDC
- Minimum trip energy
- .030 Joules
- Coil resistance at 20°C
- 5.75 ± 0.3 Ω
- 22.9 ± .635 mm
- Response time
- 12 ms max
- Latched spring load
- 59.16 ± 5.78 N (13.3 ± 1.3 lbs)
- Net holding force
- 12 lbs min
- Operating temperature range
- -40 to 50°C
- Electric strength
- 500 VAC for 1 second
- >100K cycles
All TLX components are customized to fit system requirements, meaning technical specifications are unique to each customer and design. Examples given on our website are for illustration purposes only.
Working with TLX
- Experienced partner of industry leaders, first-tier suppliers, and OEMs
- Direct access to our design and engineering team
- Localized production in USA and China
- Dependable single-source solution from design to delivery