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What is a DIN relay?
They’re called DIN-standard relay terminal numbers; DIN stands for Deutsches Institut für Normung (German Institute for Standards). Sometime around the middle of the last century, German cars began following DIN 72552, which is a numbering standard for automotive electrical terminals.
What is latching type relay?
A latching relay is a two-position electrically actuated switch that maintains either contact position indefinitely without any power being sent to the coil and is a perfect choice to reduce the power consumption of a system. It is not necessary for power to remain applied to maintain the switched state.
How are latching relays reset?
Resetting is very simple. The coil circuit needs to be opened and shortened to the coils ground potential. The capacitor will be discharged through the coil and drives a current pulse with opposite polarity through the coil, that resets the relay (Figure 4).
What do you need to know about latching relays?
The input voltage latches them in position, so they don’t require a constant voltage to stay switched. Use them to control motors, pumps, and lighting. The covered terminals prevent contact with live connections. Mount to 35 mm DIN rail. Also known as step relays.
What kind of DIN rail relay do I Need?
DIN-Rail Mount Multifunction Timer Relays Control multiple timing functions from your electrical cabinet— these timer relays mount to 35 mm DIN rail (also known as DIN 3 rail), which is the most commonly used size. Ultra-Thin DIN-Rail Mount Multifunction Timer Relays Maximize space inside your control cabinet.
How does the McMaster DIN rail mount relay work?
A single, momentary input voltage switches these relays and locks them in position, so they don’t require a constant input voltage to stay on or off. Split run time between two devices— this relay will automatically alternate between them. It takes two hands to activate these switches, minimizing the risk of accidental equipment start up.
How does the latch work on a McMaster Carr relay?
A single, momentary input voltage switches these relays and latches them in position, so they don’t require a constant input voltage to stay switched. A second momentary voltage will release the latch. Relay sockets (sold separately) mount to 35 mm DIN rail.