Latching Relay Module (12V)
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Item Description
A relay is an electrically operated switch. It could be Normally Open (NO) or Normally Closed (NC). To change its state the coil should be energized. When the coil is de-energized the relay will change back its state to normal state.
Latching relay works different way. It has two coils, Set and Reset. A short pulse on Set will put the relay in Set state. A short pulse on Reset will put the relay in Reset state. The relay will remain in its last state even if the coil is de-energized.
A brief (<1s) pulse to Set will close AC terminals, BC will be open
A brief (<1s) pulse to Reset will close BC terminals, AC will be open
Pinout
| - | GND (0V) |
| + | +12V |
| S | Set input |
| R | Reset input |
| A | A terminal |
| B | B terminal |
| C | C common terminal |
Product characteristics
- dimension: 70x30mm (PCB only)
- Operating voltage: 12V
- Set/Reset input
- low level: 0-0.7V
- high level: 2-12V
- Maximum switching current
- 8A / 250V AC
- 8A / 24V DC
- Download relay datasheet here