Scope: Uses the maximum-current and holding-current fields of Schlage ND electrified locks as an example. Does not provide power-supply selection or wiring instructions.
Specifications
- Fields compared
- Maximum current and holding current
- Common unit
- A (amperes)
Why two current values appear in a specification table
Official ND electrified lock specifications separately list maximum current of 0.23 A and holding current of 0.01 A. These describe different operating conditions and are not interchangeable values to choose between.
Sources: [1]
What to record alongside current
Record the model, input voltage and manufacturer's conditions together. The official input voltage range in this example is 12–24 V DC; these values do not apply automatically to other locks of the same brand.
Sources: [1]
Questions to ask the supplier
Provide the complete model, number of locks and control method, and ask the supplier to check supply conditions against the relevant installation documentation. A low holding current does not establish that a particular supply can power every device.
Sources: [1]
Sources
- Schlage · ND Series Electrified Cylindrical Lock
Official input-voltage, maximum-current and holding-current fields, not a basis for system power design.
Manufacturer documents are provided in their original language.