Phoenix redundant module 2907719 is a DIN rail diode

Phoenix redundant module 2907719 is a DIN rail diode

UPS is calledUninterruptible Power SupplyIt is because during a power outage, it can quickly transition to the 'reverse' state, so that the computer in use will not lose important files due to sudden power outages and future storage. It's not used as a backup power source. If you just want to use electricity in case of a power outage, just buying an inverter is enough. Most household UPS systems use maintenance free lead-acid batteries.

The commonly used car batteries are mainly divided into three categories: ordinary batteries, dry charge batteries, and maintenance free batteries.

Ordinary battery: The plates of ordinary batteries are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid.

Its main advantagesStable voltage and affordable price; The disadvantages are low specific energy (i.e. the amount of stored electricity per kilogram of battery), short service life, and frequent daily maintenance.

Dry charged battery:Its full name is dry charged lead-acid battery, and its main feature is that the negative plate has a high storage capacity. In a dry state, it can store the obtained electricity for two years. When in use, only electrolyte needs to be added, and it can be used after 20-30 minutes.

Maintenance free:Due to its structural advantages, maintenance free batteries consume very little electrolyte and do not require the addition of distilled water during their service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and low self discharge. The service life is generally twice that of ordinary batteries. There are also two types of maintenance free batteries on the market: the first type requires no maintenance after adding electrolyte at the time of purchase (adding supplementary fluid); Another type is that the battery itself is already filled with electrolyte and sealed at the factory, and users cannot add supplementary liquid at all.

Phoenix redundant module 2907719 is a DIN rail diode