Contents
What is switching current in relay?
When a relay is hot switched, the switch current is the maximum current that the relay can sustain when being opened or closed and not sustain contact damage.
What is maximum switching capacity?
The maximum load capacity that can be switched. Design circuits to ensure that this value is not exceeded during operation. Maximum switching capacity is expressed as volt-amps (VA) for AC Relays and watts (W) for DC Relays.
Can you use a 110V switch for 12V?
That’s a no-no. Break the Positive wire across the light switch and return the Negative wire to the negative side of the 12V source. Most modern dimmer switches don’t work on 12V.
When to use carry current or switching current?
For most applications, the current the switch will be required to handle is the same, or higher, during the switching events than during stead-state operation. Therefore, when searching for a suitable reed switch, most designs should focus on the switching current rather than the carry current.
What’s the difference between load current and current consumption?
Sometimes the current consumption is specified at a specific voltage like in Figure 2. This specification is the most misunderstood. Load current simply tells the user how much current the industrial sensor can supply to a load. It is not the amount of current that a sensor will supply to a load.
How is switching capacity rated with voltage and current?
Switching capacity or switching load is usually rated with both voltage and current. The voltage is the load voltage which will be across the terminals of the relay when it is open.
How much current does a reed switch handle?
When selecting a reed switch for a specific application, one of several concerns is to determine how much load current the switch will be required to handle. If one is just switching a low-current signal, this is generally not a concern, as almost any reed switch can handle at least 100mA.