LITTELFUSE

The TVW Series provides protection for motors and other sensitive loads. Continuously measures the voltage of each of the three phases using a microcontroller circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage. Operation Upon application of line voltage, the restart delay begins. The output is de-energized during restart delay. Under normal conditions, the output energizes after the restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for the complete trip delay period before the output de-energizes. The restart delay begins as soon as the output de-energizes. If the restart delay is completed when a fault is corrected, the output energizes immediately. The output will not energize if a fault is sensed as the input voltage is applied. If the voltage selector is set between two voltage marks (i.e. between 220 and 230V), the LED will flash red rapidly. The TVW provides fault protection at the lower of the two line voltages (i.e. 220V).Reset: Reset is automatic upon correction of a fault.

The TVW Series provides protection for motors and other sensitive loads. Continuously measures the voltage of each of the three phases using a microcontroller circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage. Operation Upon application of line voltage, the restart delay begins. The output is de-energized during restart delay. Under normal conditions, the output energizes after the restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for the complete trip delay period before the output de-energizes. The restart delay begins as soon as the output de-energizes. If the restart delay is completed when a fault is corrected, the output energizes immediately. The output will not energize if a fault is sensed as the input voltage is applied. If the voltage selector is set between two voltage marks (i.e. between 220 and 230V), the LED will flash red rapidly. The TVW provides fault protection at the lower of the two line voltages (i.e. 220V).Reset: Reset is automatic upon correction of a fault.

C&K’s TDP series of ultra-miniature surface mount half-pitch side-actuated DIP switches are used by designers in portable and hand-held electronic devices as well as various instrumentation and control applications. The TDP series are attractive to designers because they are process sealed for surface mount soldering and washable processing and come with side actuation to allow for visual indication of the on/off position in horizontal applications.

Basic / Snap Action Switches Miniature Snap-acting Switches (Full Disconnection - Gap > 3mm)

C&K’s TFS series are perfect for alarm devices, home security systems, air conditioners and food processors because of their reliability in the face of repeated use and difficult conditions. With a reliable snap action mechanism, C&K’s TFS series splash proof mid size snap-acting switch offers designers the low cost/high-performance mix they need to be successful.

The THB is a miniature thumbstick switch featuring a versatile, high-quality dual axis lever with integrated center select switch. It meets the reliability requirements demanded by premium controller products including high end drones, gaming peripherals, and industrial controllers. Featuring a high activation force and a small form factor, the new THB series combines a small package with improved ergonomics that provides premium performance to its users and accommodates a wide range of customers.