AC/DC Operation
- Do not contact the power system supply directly or indirectly through damp material. The hazardous voltage may cause electric shock.
- Improper operation may cause accidents such as fire and electric shock.
- This device relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than as the table shown below is used on the phase conductors (all current-carrying conductors). Check whether the specifications are compatible before equipment installation.
- If the power input of the equipment is permanent, ensure that an easy-to access disconnection device is installed on the exterior of the equipment.
- Use AC-supplied models for TN, TT power systems.
- For DC-supplied models, use reinforced insulation or double insulation to isolate the DC source from the AC mains supply.
- Before connecting equipment, disconnect the corresponding external-equipment circuit breaker.
- Before connecting the load (electrical equipment) or battery cable, verify that the input voltage is within the rated voltage range of the equipment.
- Before connecting the load (electrical equipment) or battery cable, check the cable and terminal polarities to avoid reverse connection.
- Before powering on, verify that equipment electrical connections are correct.
- If the device has more than one power supply, disconnect all of them when powering off the device.